Test problem for Fp/PCD preconditioner. More...

Inheritance diagram for FpTestProblem:

Public Member Functions
	FpTestProblem (const unsigned &n_element, const bool &use_tets, const bool &use_adaptivity, const bool &use_lsc, const bool &use_hypre_for_pressure, const bool &use_block_diagonal_for_momentum, const bool &use_hypre_for_momentum_diagonals, const int &problem_id)
	Constructor. More...

	~FpTestProblem ()
	Destructor: Cleanup. More...

void	fix_pressure (const unsigned &e, const unsigned &pdof, const double &pvalue)
	Fix pressure in element e at pressure dof pdof and set to pvalue. More...

void	actions_after_adapt ()
	After adaptation: Unpin pressure and pin redudant pressure dofs. More...

void	actions_after_newton_step ()
	Actions after Newton step record number of iterations. More...

void	actions_after_newton_solve ()
	Update the after solve (empty) More...

void	actions_before_newton_solve ()
	Update the problem specs before solve. More...

void	doc_solution (DocInfo &doc_info)
	Doc the solution. More...

template<class ELEMENT >
void	create_traction_elements ()
	Create traction elements on outflow boundary. More...

template<class ELEMENT >
void	create_refineable_traction_elements ()
	Create refineable traction elements on outflow boundary. More...

template<class FP_ELEMENT >
void	validate_fp ()
	Validate fp. More...

Mesh *&	bulk_mesh_pt ()
	Pointer to the "bulk" mesh. More...

	FpTestProblem (const unsigned &n_element, const bool &use_triangles, const bool &use_adaptivity, const bool &use_lsc, const bool &use_robin, const bool &use_hypre_for_pressure, const bool &use_block_diagonal_for_momentum, const bool &use_hypre_for_momentum_diagonals, const int &problem_id)
	Constructor. More...

	~FpTestProblem ()
	Destructor: Cleanup. More...

void	fix_pressure (const unsigned &e, const unsigned &pdof, const double &pvalue)
	Fix pressure in element e at pressure dof pdof and set to pvalue. More...

void	actions_after_adapt ()
	After adaptation: Unpin pressure and pin redudant pressure dofs. More...

void	actions_after_newton_step ()
	Actions after Newton step record number of iterations. More...

void	actions_after_newton_solve ()
	Update the after solve (empty) More...

void	actions_before_newton_solve ()
	Update the problem specs before solve. More...

void	doc_solution (DocInfo &doc_info)
	Doc the solution. More...

template<class FP_ELEMENT >
void	validate_fp ()
	Validate fp. More...

Public Member Functions inherited from oomph::Problem
virtual void	debug_hook_fct (const unsigned &i)

void	set_analytic_dparameter (double *const &parameter_pt)

void	unset_analytic_dparameter (double *const &parameter_pt)

bool	is_dparameter_calculated_analytically (double *const &parameter_pt)

void	set_analytic_hessian_products ()

void	unset_analytic_hessian_products ()

bool	are_hessian_products_calculated_analytically ()

void	set_pinned_values_to_zero ()

bool	distributed () const

virtual void	actions_before_adapt ()

OomphCommunicator *	communicator_pt ()
	access function to the oomph-lib communicator More...

const OomphCommunicator *	communicator_pt () const
	access function to the oomph-lib communicator, const version More...

	Problem ()

	Problem (const Problem &dummy)=delete
	Broken copy constructor. More...

void	operator= (const Problem &)=delete
	Broken assignment operator. More...

virtual	~Problem ()
	Virtual destructor to clean up memory. More...

Mesh *&	mesh_pt ()
	Return a pointer to the global mesh. More...

Mesh *const &	mesh_pt () const
	Return a pointer to the global mesh (const version) More...

Mesh *&	mesh_pt (const unsigned &imesh)

Mesh *const &	mesh_pt (const unsigned &imesh) const
	Return a pointer to the i-th submesh (const version) More...

unsigned	nsub_mesh () const
	Return number of submeshes. More...

unsigned	add_sub_mesh (Mesh *const &mesh_pt)

void	flush_sub_meshes ()

void	build_global_mesh ()

void	rebuild_global_mesh ()

LinearSolver *&	linear_solver_pt ()
	Return a pointer to the linear solver object. More...

LinearSolver *const &	linear_solver_pt () const
	Return a pointer to the linear solver object (const version) More...

LinearSolver *&	mass_matrix_solver_for_explicit_timestepper_pt ()

LinearSolver *	mass_matrix_solver_for_explicit_timestepper_pt () const

EigenSolver *&	eigen_solver_pt ()
	Return a pointer to the eigen solver object. More...

EigenSolver *const &	eigen_solver_pt () const
	Return a pointer to the eigen solver object (const version) More...

Time *&	time_pt ()
	Return a pointer to the global time object. More...

Time *	time_pt () const
	Return a pointer to the global time object (const version). More...

double &	time ()
	Return the current value of continuous time. More...

double	time () const
	Return the current value of continuous time (const version) More...

TimeStepper *&	time_stepper_pt ()

const TimeStepper *	time_stepper_pt () const

TimeStepper *&	time_stepper_pt (const unsigned &i)
	Return a pointer to the i-th timestepper. More...

ExplicitTimeStepper *&	explicit_time_stepper_pt ()
	Return a pointer to the explicit timestepper. More...

unsigned long	set_timestepper_for_all_data (TimeStepper *const &time_stepper_pt, const bool &preserve_existing_data=false)

virtual void	shift_time_values ()
	Shift all values along to prepare for next timestep. More...

AssemblyHandler *&	assembly_handler_pt ()
	Return a pointer to the assembly handler object. More...

AssemblyHandler *const &	assembly_handler_pt () const
	Return a pointer to the assembly handler object (const version) More...

double &	minimum_dt ()
	Access function to min timestep in adaptive timestepping. More...

double &	maximum_dt ()
	Access function to max timestep in adaptive timestepping. More...

unsigned &	max_newton_iterations ()
	Access function to max Newton iterations before giving up. More...

void	problem_is_nonlinear (const bool &prob_lin)
	Access function to Problem_is_nonlinear. More...

double &	max_residuals ()

bool &	time_adaptive_newton_crash_on_solve_fail ()
	Access function for Time_adaptive_newton_crash_on_solve_fail. More...

double &	newton_solver_tolerance ()

void	add_time_stepper_pt (TimeStepper *const &time_stepper_pt)

void	set_explicit_time_stepper_pt (ExplicitTimeStepper *const &explicit_time_stepper_pt)

void	initialise_dt (const double &dt)

void	initialise_dt (const Vector< double > &dt)

Data *&	global_data_pt (const unsigned &i)
	Return a pointer to the the i-th global data object. More...

void	add_global_data (Data *const &global_data_pt)

void	flush_global_data ()

LinearAlgebraDistribution *const &	dof_distribution_pt () const
	Return the pointer to the dof distribution (read-only) More...

unsigned long	ndof () const
	Return the number of dofs. More...

unsigned	ntime_stepper () const
	Return the number of time steppers. More...

unsigned	nglobal_data () const
	Return the number of global data values. More...

unsigned	self_test ()
	Self-test: Check meshes and global data. Return 0 for OK. More...

void	enable_store_local_dof_pt_in_elements ()

void	disable_store_local_dof_pt_in_elements ()

unsigned long	assign_eqn_numbers (const bool &assign_local_eqn_numbers=true)

void	describe_dofs (std::ostream &out= *(oomph_info.stream_pt())) const

void	enable_discontinuous_formulation ()

void	disable_discontinuous_formulation ()

void	get_dofs (DoubleVector &dofs) const

void	get_dofs (const unsigned &t, DoubleVector &dofs) const
	Return vector of the t'th history value of all dofs. More...

void	set_dofs (const DoubleVector &dofs)
	Set the values of the dofs. More...

void	set_dofs (const unsigned &t, DoubleVector &dofs)
	Set the history values of the dofs. More...

void	set_dofs (const unsigned &t, Vector< double * > &dof_pt)

void	add_to_dofs (const double &lambda, const DoubleVector &increment_dofs)
	Add lambda x incremenet_dofs[l] to the l-th dof. More...

double *	global_dof_pt (const unsigned &i)

double &	dof (const unsigned &i)
	i-th dof in the problem More...

double	dof (const unsigned &i) const
	i-th dof in the problem (const version) More...

double *&	dof_pt (const unsigned &i)
	Pointer to i-th dof in the problem. More...

double *	dof_pt (const unsigned &i) const
	Pointer to i-th dof in the problem (const version) More...

virtual void	get_inverse_mass_matrix_times_residuals (DoubleVector &Mres)

virtual void	get_dvaluesdt (DoubleVector &f)

virtual void	get_residuals (DoubleVector &residuals)
	Get the total residuals Vector for the problem. More...

virtual void	get_jacobian (DoubleVector &residuals, DenseDoubleMatrix &jacobian)

virtual void	get_jacobian (DoubleVector &residuals, CRDoubleMatrix &jacobian)

virtual void	get_jacobian (DoubleVector &residuals, CCDoubleMatrix &jacobian)

virtual void	get_jacobian (DoubleVector &residuals, SumOfMatrices &jacobian)

void	get_fd_jacobian (DoubleVector &residuals, DenseMatrix< double > &jacobian)
	Get the full Jacobian by finite differencing. More...

void	get_derivative_wrt_global_parameter (double *const &parameter_pt, DoubleVector &result)

void	get_hessian_vector_products (DoubleVectorWithHaloEntries const &Y, Vector< DoubleVectorWithHaloEntries > const &C, Vector< DoubleVectorWithHaloEntries > &product)

void	solve_eigenproblem (const unsigned &n_eval, Vector< std::complex< double >> &eigenvalue, Vector< DoubleVector > &eigenvector, const bool &steady=true)
	Solve the eigenproblem. More...

void	solve_eigenproblem (const unsigned &n_eval, Vector< std::complex< double >> &eigenvalue, const bool &steady=true)

virtual void	get_eigenproblem_matrices (CRDoubleMatrix &mass_matrix, CRDoubleMatrix &main_matrix, const double &shift=0.0)

void	assign_eigenvector_to_dofs (DoubleVector &eigenvector)
	Assign the eigenvector passed to the function to the dofs. More...

void	add_eigenvector_to_dofs (const double &epsilon, const DoubleVector &eigenvector)

void	store_current_dof_values ()
	Store the current values of the degrees of freedom. More...

void	restore_dof_values ()
	Restore the stored values of the degrees of freedom. More...

void	enable_jacobian_reuse ()

void	disable_jacobian_reuse ()
	Disable recycling of Jacobian in Newton iteration. More...

bool	jacobian_reuse_is_enabled ()
	Is recycling of Jacobian in Newton iteration enabled? More...

bool &	use_predictor_values_as_initial_guess ()

void	newton_solve ()
	Use Newton method to solve the problem. More...

void	enable_globally_convergent_newton_method ()
	enable globally convergent Newton method More...

void	disable_globally_convergent_newton_method ()
	disable globally convergent Newton method More...

void	newton_solve (unsigned const &max_adapt)

void	steady_newton_solve (unsigned const &max_adapt=0)

void	copy (Problem *orig_problem_pt)

virtual Problem *	make_copy ()

virtual void	read (std::ifstream &restart_file, bool &unsteady_restart)

virtual void	read (std::ifstream &restart_file)

virtual void	dump (std::ofstream &dump_file) const

void	dump (const std::string &dump_file_name) const

void	delete_all_external_storage ()

virtual void	symmetrise_eigenfunction_for_adaptive_pitchfork_tracking ()

double *	bifurcation_parameter_pt () const

void	get_bifurcation_eigenfunction (Vector< DoubleVector > &eigenfunction)

void	activate_fold_tracking (double *const &parameter_pt, const bool &block_solve=true)

void	activate_bifurcation_tracking (double *const &parameter_pt, const DoubleVector &eigenvector, const bool &block_solve=true)

void	activate_bifurcation_tracking (double *const &parameter_pt, const DoubleVector &eigenvector, const DoubleVector &normalisation, const bool &block_solve=true)

void	activate_pitchfork_tracking (double *const &parameter_pt, const DoubleVector &symmetry_vector, const bool &block_solve=true)

void	activate_hopf_tracking (double *const &parameter_pt, const bool &block_solve=true)

void	activate_hopf_tracking (double *const &parameter_pt, const double &omega, const DoubleVector &null_real, const DoubleVector &null_imag, const bool &block_solve=true)

void	deactivate_bifurcation_tracking ()

void	reset_assembly_handler_to_default ()
	Reset the system to the standard non-augemented state. More...

double	arc_length_step_solve (double *const &parameter_pt, const double &ds, const unsigned &max_adapt=0)

double	arc_length_step_solve (Data *const &data_pt, const unsigned &data_index, const double &ds, const unsigned &max_adapt=0)

void	reset_arc_length_parameters ()

int &	sign_of_jacobian ()

void	explicit_timestep (const double &dt, const bool &shift_values=true)
	Take an explicit timestep of size dt. More...

void	unsteady_newton_solve (const double &dt)

void	unsteady_newton_solve (const double &dt, const bool &shift_values)

void	unsteady_newton_solve (const double &dt, const unsigned &max_adapt, const bool &first, const bool &shift=true)

double	doubly_adaptive_unsteady_newton_solve (const double &dt, const double &epsilon, const unsigned &max_adapt, const bool &first, const bool &shift=true)

double	doubly_adaptive_unsteady_newton_solve (const double &dt, const double &epsilon, const unsigned &max_adapt, const unsigned &suppress_resolve_after_spatial_adapt_flag, const bool &first, const bool &shift=true)

double	adaptive_unsteady_newton_solve (const double &dt_desired, const double &epsilon)

double	adaptive_unsteady_newton_solve (const double &dt_desired, const double &epsilon, const bool &shift_values)

void	assign_initial_values_impulsive ()

void	assign_initial_values_impulsive (const double &dt)

void	calculate_predictions ()
	Calculate predictions. More...

void	enable_mass_matrix_reuse ()

void	disable_mass_matrix_reuse ()

bool	mass_matrix_reuse_is_enabled ()
	Return whether the mass matrix is being reused. More...

void	refine_uniformly (const Vector< unsigned > &nrefine_for_mesh)

void	refine_uniformly (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh)

void	refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	refine_uniformly (DocInfo &doc_info)

void	refine_uniformly_and_prune (DocInfo &doc_info)

void	refine_uniformly ()

void	refine_uniformly (const unsigned &i_mesh, DocInfo &doc_info)
	Do uniform refinement for submesh i_mesh with documentation. More...

void	refine_uniformly (const unsigned &i_mesh)
	Do uniform refinement for submesh i_mesh without documentation. More...

void	p_refine_uniformly (const Vector< unsigned > &nrefine_for_mesh)

void	p_refine_uniformly (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	p_refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh)

void	p_refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	p_refine_uniformly (DocInfo &doc_info)

void	p_refine_uniformly_and_prune (DocInfo &doc_info)

void	p_refine_uniformly ()

void	p_refine_uniformly (const unsigned &i_mesh, DocInfo &doc_info)
	Do uniform p-refinement for submesh i_mesh with documentation. More...

void	p_refine_uniformly (const unsigned &i_mesh)
	Do uniform p-refinement for submesh i_mesh without documentation. More...

void	refine_selected_elements (const Vector< unsigned > &elements_to_be_refined)

void	refine_selected_elements (const Vector< RefineableElement * > &elements_to_be_refined_pt)

void	refine_selected_elements (const unsigned &i_mesh, const Vector< unsigned > &elements_to_be_refined)

void	refine_selected_elements (const unsigned &i_mesh, const Vector< RefineableElement * > &elements_to_be_refined_pt)

void	refine_selected_elements (const Vector< Vector< unsigned >> &elements_to_be_refined)

void	refine_selected_elements (const Vector< Vector< RefineableElement * >> &elements_to_be_refined_pt)

void	p_refine_selected_elements (const Vector< unsigned > &elements_to_be_refined)

void	p_refine_selected_elements (const Vector< PRefineableElement * > &elements_to_be_refined_pt)

void	p_refine_selected_elements (const unsigned &i_mesh, const Vector< unsigned > &elements_to_be_refined)

void	p_refine_selected_elements (const unsigned &i_mesh, const Vector< PRefineableElement * > &elements_to_be_refined_pt)

void	p_refine_selected_elements (const Vector< Vector< unsigned >> &elements_to_be_refined)

void	p_refine_selected_elements (const Vector< Vector< PRefineableElement * >> &elements_to_be_refined_pt)

unsigned	unrefine_uniformly ()

unsigned	unrefine_uniformly (const unsigned &i_mesh)

void	p_unrefine_uniformly (DocInfo &doc_info)

void	p_unrefine_uniformly (const unsigned &i_mesh, DocInfo &doc_info)
	Do uniform p-unrefinement for submesh i_mesh without documentation. More...

void	adapt (unsigned &n_refined, unsigned &n_unrefined)

void	adapt ()

void	p_adapt (unsigned &n_refined, unsigned &n_unrefined)

void	p_adapt ()

void	adapt_based_on_error_estimates (unsigned &n_refined, unsigned &n_unrefined, Vector< Vector< double >> &elemental_error)

void	adapt_based_on_error_estimates (Vector< Vector< double >> &elemental_error)

void	get_all_error_estimates (Vector< Vector< double >> &elemental_error)

void	doc_errors (DocInfo &doc_info)
	Get max and min error for all elements in submeshes. More...

void	doc_errors ()
	Get max and min error for all elements in submeshes. More...

void	enable_info_in_newton_solve ()

void	disable_info_in_newton_solve ()
	Disable the output of information when in the newton solver. More...

Public Member Functions inherited from oomph::ExplicitTimeSteppableObject
	ExplicitTimeSteppableObject ()
	Empty constructor. More...

	ExplicitTimeSteppableObject (const ExplicitTimeSteppableObject &)=delete
	Broken copy constructor. More...

void	operator= (const ExplicitTimeSteppableObject &)=delete
	Broken assignment operator. More...

virtual	~ExplicitTimeSteppableObject ()
	Empty destructor. More...

virtual void	actions_before_explicit_stage ()

virtual void	actions_after_explicit_stage ()

Private Attributes
IterativeLinearSolver *	Solver_pt
	Solver. More...

Preconditioner *	Prec_pt
	Solver. More...

Preconditioner *	P_matrix_preconditioner_pt
	Inexact solver for P block. More...

Preconditioner *	F_matrix_preconditioner_pt
	Inexact solver for F block. More...

unsigned	Driven_boundary
	ID of driven boundary. More...

unsigned	Inflow_boundary
	ID of inflow boundary. More...

unsigned	Outflow_boundary
	ID of outflow boundary. More...

unsigned	Problem_id
	Problem id. More...

Mesh *	Bulk_mesh_pt
	Pointer to the "bulk" mesh. More...

Mesh *	Surface_mesh_pt
	Pointer to the "surface" mesh. More...

Additional Inherited Members
Public Types inherited from oomph::Problem
typedef void(*	SpatialErrorEstimatorFctPt) (Mesh *&mesh_pt, Vector< double > &elemental_error)
	Function pointer for spatial error estimator. More...

typedef void(*	SpatialErrorEstimatorWithDocFctPt) (Mesh *&mesh_pt, Vector< double > &elemental_error, DocInfo &doc_info)
	Function pointer for spatial error estimator with doc. More...

Public Attributes inherited from oomph::Problem
bool	Shut_up_in_newton_solve

Static Public Attributes inherited from oomph::Problem
static bool	Suppress_warning_about_actions_before_read_unstructured_meshes

Protected Types inherited from oomph::Problem
enum	Assembly_method { Perform_assembly_using_vectors_of_pairs , Perform_assembly_using_two_vectors , Perform_assembly_using_maps , Perform_assembly_using_lists , Perform_assembly_using_two_arrays }
	Enumerated flags to determine which sparse assembly method is used. More...

Protected Member Functions inherited from oomph::Problem
unsigned	setup_element_count_per_dof ()

virtual void	sparse_assemble_row_or_column_compressed (Vector< int * > &column_or_row_index, Vector< int * > &row_or_column_start, Vector< double * > &value, Vector< unsigned > &nnz, Vector< double * > &residual, bool compressed_row_flag)

virtual void	actions_before_newton_convergence_check ()

virtual void	actions_before_newton_step ()

virtual void	actions_before_implicit_timestep ()

virtual void	actions_after_implicit_timestep ()

virtual void	actions_after_implicit_timestep_and_error_estimation ()

virtual void	actions_before_explicit_timestep ()
	Actions that should be performed before each explicit time step. More...

virtual void	actions_after_explicit_timestep ()
	Actions that should be performed after each explicit time step. More...

virtual void	actions_before_read_unstructured_meshes ()

virtual void	actions_after_read_unstructured_meshes ()

virtual void	actions_after_change_in_global_parameter (double *const &parameter_pt)

virtual void	actions_after_change_in_bifurcation_parameter ()

virtual void	actions_after_parameter_increase (double *const &parameter_pt)

double &	dof_derivative (const unsigned &i)

double &	dof_current (const unsigned &i)

virtual void	set_initial_condition ()

virtual double	global_temporal_error_norm ()

unsigned	newton_solve_continuation (double *const &parameter_pt)

unsigned	newton_solve_continuation (double *const &parameter_pt, DoubleVector &z)

void	calculate_continuation_derivatives (double *const &parameter_pt)

void	calculate_continuation_derivatives (const DoubleVector &z)

void	calculate_continuation_derivatives_fd (double *const &parameter_pt)

bool	does_pointer_correspond_to_problem_data (double *const &parameter_pt)

void	set_consistent_pinned_values_for_continuation ()

Protected Attributes inherited from oomph::Problem
Vector< Problem * >	Copy_of_problem_pt

std::map< double *, bool >	Calculate_dparameter_analytic

bool	Calculate_hessian_products_analytic

LinearAlgebraDistribution *	Dof_distribution_pt

Vector< double * >	Dof_pt
	Vector of pointers to dofs. More...

DoubleVectorWithHaloEntries	Element_count_per_dof

double	Relaxation_factor

double	Newton_solver_tolerance

unsigned	Max_newton_iterations
	Maximum number of Newton iterations. More...

unsigned	Nnewton_iter_taken

Vector< double >	Max_res
	Maximum residuals at start and after each newton iteration. More...

double	Max_residuals

bool	Time_adaptive_newton_crash_on_solve_fail

bool	Jacobian_reuse_is_enabled
	Is re-use of Jacobian in Newton iteration enabled? Default: false. More...

bool	Jacobian_has_been_computed

bool	Problem_is_nonlinear

bool	Pause_at_end_of_sparse_assembly

bool	Doc_time_in_distribute

unsigned	Sparse_assembly_method

unsigned	Sparse_assemble_with_arrays_initial_allocation

unsigned	Sparse_assemble_with_arrays_allocation_increment

Vector< Vector< unsigned > >	Sparse_assemble_with_arrays_previous_allocation

double	Numerical_zero_for_sparse_assembly

double	FD_step_used_in_get_hessian_vector_products

bool	Mass_matrix_reuse_is_enabled

bool	Mass_matrix_has_been_computed

bool	Discontinuous_element_formulation

double	Minimum_dt
	Minimum desired dt: if dt falls below this value, exit. More...

double	Maximum_dt
	Maximum desired dt. More...

double	DTSF_max_increase

double	DTSF_min_decrease

double	Minimum_dt_but_still_proceed

bool	Scale_arc_length
	Boolean to control whether arc-length should be scaled. More...

double	Desired_proportion_of_arc_length
	Proportion of the arc-length to taken by the parameter. More...

double	Theta_squared

int	Sign_of_jacobian
	Storage for the sign of the global Jacobian. More...

double	Continuation_direction

double	Parameter_derivative
	Storage for the derivative of the global parameter wrt arc-length. More...

double	Parameter_current
	Storage for the present value of the global parameter. More...

bool	Use_continuation_timestepper
	Boolean to control original or new storage of dof stuff. More...

unsigned	Dof_derivative_offset

unsigned	Dof_current_offset

Vector< double >	Dof_derivative
	Storage for the derivative of the problem variables wrt arc-length. More...

Vector< double >	Dof_current
	Storage for the present values of the variables. More...

double	Ds_current
	Storage for the current step value. More...

unsigned	Desired_newton_iterations_ds

double	Minimum_ds
	Minimum desired value of arc-length. More...

bool	Bifurcation_detection
	Boolean to control bifurcation detection via determinant of Jacobian. More...

bool	Bisect_to_find_bifurcation
	Boolean to control wheter bisection is used to located bifurcation. More...

bool	First_jacobian_sign_change
	Boolean to indicate whether a sign change has occured in the Jacobian. More...

bool	Arc_length_step_taken
	Boolean to indicate whether an arc-length step has been taken. More...

bool	Use_finite_differences_for_continuation_derivatives

OomphCommunicator *	Communicator_pt
	The communicator for this problem. More...

bool	Always_take_one_newton_step

double	Timestep_reduction_factor_after_nonconvergence

bool	Keep_temporal_error_below_tolerance

Static Protected Attributes inherited from oomph::Problem
static ContinuationStorageScheme	Continuation_time_stepper
	Storage for the single static continuation timestorage object. More...

Detailed Description

Test problem for Fp/PCD preconditioner.

///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////

Constructor & Destructor Documentation

◆ FpTestProblem() [1/2]

FpTestProblem::FpTestProblem	(	const unsigned &	n_element,
		const bool &	use_tets,
		const bool &	use_adaptivity,
		const bool &	use_lsc,
		const bool &	use_hypre_for_pressure,
		const bool &	use_block_diagonal_for_momentum,
		const bool &	use_hypre_for_momentum_diagonals,
		const int &	problem_id
	)

Constructor.

Constructor for DrivenCavity problem.

 { 
  
  // Store flag
  Problem_id=problem_id;
  
  // Setup mesh
  
  // # of elements in x-direction
  unsigned n_x=n_el;
  
  // # of elements in y-direction
  unsigned n_y=n_el;
  
  // # of elements in z-direction
  unsigned n_z=n_el;
  
  // Domain length in x-direction
  double l_x=1.0;
  
  // Domain length in y-direction
  double l_y=1.0;
  
  // Domain length in y-direction
  double l_z=1.0;
  
  
  // Build and assign mesh
  if (use_tets)
   {
    Bulk_mesh_pt = new SimpleCubicTetMesh<TTaylorHoodElement<3> >
     (n_x,n_y,n_z,l_x,l_y,l_z);
      
    dynamic_cast<SimpleCubicTetMesh<TTaylorHoodElement<3> >*>(Bulk_mesh_pt)
     ->setup_boundary_element_info();
  
    Driven_boundary=4;
    Inflow_boundary=0;
    Outflow_boundary=1;
   }
  else
   {
    if (use_adaptivity)
     {
      Bulk_mesh_pt = 
       new RefineableSimpleCubicMesh<RefineableQTaylorHoodElement<3> >
       (n_x,n_y,n_z,l_x,l_y,l_z);
      
      Driven_boundary=0;
      Inflow_boundary=4;
      Outflow_boundary=2;     
     }
    else
     {
      Bulk_mesh_pt = 
       new SimpleCubicMesh<QTaylorHoodElement<3> >(n_x,n_y,n_z,l_x,l_y,l_z);
      
      Driven_boundary=0;
      Inflow_boundary=4;
      Outflow_boundary=2;
     }
   } 
  
  // Create "surface mesh" that will contain only the prescribed-traction 
  // elements.
  Surface_mesh_pt = new Mesh;
  
  // Add the two sub meshes to the problem
  add_sub_mesh(Bulk_mesh_pt);
  add_sub_mesh(Surface_mesh_pt);
  
  // Combine all submeshes into a single Mesh
  build_global_mesh();
  
  // Build preconditoner
  NavierStokesSchurComplementPreconditioner* prec_pt = 
   new NavierStokesSchurComplementPreconditioner(this);
  Prec_pt=prec_pt;
    
  
  // By default, the Schur Complement Preconditioner uses SuperLU as
  // an exact preconditioner (i.e. a solver) for the
  // momentum and Schur complement blocks. 
  // Can overwrite this by passing pointers to 
  // other preconditioners that perform the (approximate)
  // solves of these blocks.
  
  
  // Create internal preconditioners used on Schur block
  P_matrix_preconditioner_pt=0;
  if (use_hypre_for_pressure)
   {
 #ifdef OOMPH_HAS_HYPRE
  
    // Create preconditioner
    P_matrix_preconditioner_pt = new HyprePreconditioner;
    
    // Set parameters for use as preconditioner on Poisson-type problem
    Hypre_default_settings::set_defaults_for_2D_poisson_problem(
     static_cast<HyprePreconditioner*>(P_matrix_preconditioner_pt));
    
    // Use Hypre for the Schur complement block
    prec_pt->set_p_preconditioner(P_matrix_preconditioner_pt);
    
    // Shut up!
    static_cast<HyprePreconditioner*>(P_matrix_preconditioner_pt)->
     disable_doc_time();
    
 #endif
   }
  
  // Create block-diagonal preconditioner used on momentum block
  F_matrix_preconditioner_pt=0;   
  if (use_block_diagonal_for_momentum)
   {
    
    F_matrix_preconditioner_pt = 
     new BlockDiagonalPreconditioner<CRDoubleMatrix>;
    
    // Use Hypre as block preconditioner
    if (use_hypre_for_pressure)
     {
 #ifdef OOMPH_HAS_HYPRE
      dynamic_cast<BlockDiagonalPreconditioner<CRDoubleMatrix>* >
       (F_matrix_preconditioner_pt)->set_subsidiary_preconditioner_function
       (Hypre_Subsidiary_Preconditioner_Helper::set_hypre_preconditioner);
 #endif       
     }
    
    // Use Hypre for momentum block 
    prec_pt->set_f_preconditioner(F_matrix_preconditioner_pt);
   }
  
  
    
    // Use LSC?
    if (use_lsc)
     {
      prec_pt->use_lsc();
     }
    else
     {
      prec_pt->use_fp();
     }
    
    // Set Navier Stokes mesh
    prec_pt->set_navier_stokes_mesh(Bulk_mesh_pt);    
    
    
    // Set the boundary conditions for this problem: All nodes are
    // free by default -- just pin the ones that have Dirichlet conditions
    // here. 
    unsigned num_bound = Bulk_mesh_pt->nboundary();
    for(unsigned ibound=0;ibound<num_bound;ibound++)
     {
      unsigned num_nod= Bulk_mesh_pt->nboundary_node(ibound);
      for (unsigned inod=0;inod<num_nod;inod++)
       {
        // Loop over values (u, v and w velocities)
        for (unsigned i=0;i<3;i++)
         {
          Bulk_mesh_pt->boundary_node_pt(ibound,inod)->pin(i); 
         }
       }
     } // end loop over boundaries
  
  
  
  // In/outflow bcs
  if (Problem_id==Global_Variables::Through_flow)
   {
    unsigned ibound=Outflow_boundary;
    unsigned num_nod= Bulk_mesh_pt->nboundary_node(ibound);
    for (unsigned inod=0;inod<num_nod;inod++)
     {
      Node* nod_pt=Bulk_mesh_pt->boundary_node_pt(ibound,inod);
      // Only free if node is ONLY on a single boundary
      std::set<unsigned>* bnd_pt=0;
      nod_pt->get_boundaries_pt(bnd_pt);
      if (bnd_pt!=0)
       {
        if (bnd_pt->size()<2)
         {
          if (!(nod_pt->is_on_boundary(0)))
           {
            if ((nod_pt->x(1)<0.5)&&nod_pt->x(2)<0.5) nod_pt->unpin(0);
           }
         }
       }
     }
   }
  
  // Complete the build of all elements so they are fully functional
  
  //Find number of elements in mesh
  unsigned n_element = Bulk_mesh_pt->nelement();
  
  // Loop over the elements to set up element-specific 
  // things that cannot be handled by constructor
  for(unsigned e=0;e<n_element;e++)
   {
    // Upcast from GeneralisedElement to the present element
    NavierStokesEquations<3>* el_pt = 
     dynamic_cast<NavierStokesEquations<3>*>(Bulk_mesh_pt->element_pt(e));
    
    //Set the Reynolds number
    el_pt->re_pt() = &Global_Variables::Re;
   } // end loop over elements
  
  
  // Pin redundant pressure dofs
  if (use_adaptivity)
   {
    RefineableNavierStokesEquations<3>::
     pin_redundant_nodal_pressures(Bulk_mesh_pt->element_pt());
   }
  
  // Now set the first pressure value in element 0 to 0.0
  if (Problem_id==Global_Variables::Driven_cavity) fix_pressure(0,0,0.0);
  
  // Setup equation numbering scheme
  oomph_info <<"Number of equations: " << assign_eqn_numbers() << std::endl; 
  
 #ifdef OOMPH_HAS_TRILINOS
  
  // Build iterative linear solver
  oomph_info << "Using Trilinos GMRES\n"; 
  TrilinosAztecOOSolver* iterative_linear_solver_pt = 
   new TrilinosAztecOOSolver;
  
  Solver_pt=iterative_linear_solver_pt;
  
 #else
  
  // Build solve and preconditioner
  Solver_pt = new GMRES<CRDoubleMatrix>;
  dynamic_cast<GMRES<CRDoubleMatrix>*>(Solver_pt)->set_preconditioner_RHS();
  
 #endif
  
  // Set solver and preconditioner
  Solver_pt->preconditioner_pt() = Prec_pt;
  linear_solver_pt() = Solver_pt;
  
 } // end_of_constructor

References Global_Variables::Driven_cavity, e(), oomph::Node::get_boundaries_pt(), i, oomph::Node::is_on_boundary(), oomph::oomph_info, Global_Variables::Re, oomph::NavierStokesEquations< DIM >::re_pt(), oomph::Hypre_default_settings::set_defaults_for_2D_poisson_problem(), oomph::NavierStokesSchurComplementPreconditioner::set_f_preconditioner(), oomph::NavierStokesSchurComplementPreconditioner::set_navier_stokes_mesh(), oomph::NavierStokesSchurComplementPreconditioner::set_p_preconditioner(), Global_Variables::Through_flow, oomph::Data::unpin(), oomph::NavierStokesSchurComplementPreconditioner::use_fp(), oomph::NavierStokesSchurComplementPreconditioner::use_lsc(), and oomph::Node::x().

◆ ~FpTestProblem() [1/2]

FpTestProblem::~FpTestProblem ( )

inline

Destructor: Cleanup.

   {
    delete Solver_pt;
    delete Prec_pt;
    delete P_matrix_preconditioner_pt;
    delete F_matrix_preconditioner_pt;
   }

◆ FpTestProblem() [2/2]

FpTestProblem::FpTestProblem	(	const unsigned &	n_element,
		const bool &	use_triangles,
		const bool &	use_adaptivity,
		const bool &	use_lsc,
		const bool &	use_robin,
		const bool &	use_hypre_for_pressure,
		const bool &	use_block_diagonal_for_momentum,
		const bool &	use_hypre_for_momentum_diagonals,
		const int &	problem_id
	)

Constructor.

 { 
  // Allow for poor initial guess
  Problem::Max_residuals=1.0e10;
  
  // Which problem?
  Problem_id=problem_id;
  
  // Build preconditoner
  NavierStokesSchurComplementPreconditioner* prec_pt 
   = new NavierStokesSchurComplementPreconditioner(this);
  Prec_pt=prec_pt;
  
  // By default, the LSC Preconditioner uses SuperLU as
  // an exact preconditioner (i.e. a solver) for the
  // momentum and Schur complement blocks. 
  // Can overwrite this by passing pointers to 
  // other preconditioners that perform the (approximate)
  // solves of these blocks.
  
  
  // Create internal preconditioners used on Schur block
  P_matrix_preconditioner_pt=0;
  if (use_hypre_for_pressure)
   {
 #ifdef OOMPH_HAS_HYPRE
  
    // Create preconditioner
    P_matrix_preconditioner_pt = new HyprePreconditioner;
    
    // Set parameters for use as preconditioner on Poisson-type problem
    Hypre_default_settings::set_defaults_for_2D_poisson_problem(
     static_cast<HyprePreconditioner*>(P_matrix_preconditioner_pt));
    
    // Use Hypre for the Schur complement block
    prec_pt->set_p_preconditioner(P_matrix_preconditioner_pt);
    
    // Shut up!
    static_cast<HyprePreconditioner*>(P_matrix_preconditioner_pt)->
     disable_doc_time();
    
 #endif
   }
  
  // Create block-diagonal preconditioner used on momentum block
  F_matrix_preconditioner_pt=0;   
  if (use_block_diagonal_for_momentum)
   {
    
    F_matrix_preconditioner_pt = 
     new BlockDiagonalPreconditioner<CRDoubleMatrix>;
    
    // Use Hypre as block preconditioner
    if (use_hypre_for_pressure)
     {
 #ifdef OOMPH_HAS_HYPRE
      dynamic_cast<BlockDiagonalPreconditioner<CRDoubleMatrix>* >
       (F_matrix_preconditioner_pt)->set_subsidiary_preconditioner_function
       (Hypre_Subsidiary_Preconditioner_Helper::set_hypre_preconditioner);
 #endif       
     }
    
    // Use Hypre for momentum block 
    prec_pt->set_f_preconditioner(F_matrix_preconditioner_pt);
   }
  
  
  
  // Use LSC?
  if (use_lsc)
   {
    prec_pt->use_lsc();
   }
  else
   {
    prec_pt->use_fp();
    if (use_robin)
     {
      prec_pt->enable_robin_for_fp();
     }
    else
     {
      prec_pt->disable_robin_for_fp();
     }
   }
  
  
  // Setup mesh
  
  // # of elements in x-direction
  unsigned n_x=n_el;
  
  // # of elements in y-direction
  unsigned n_y=n_el;
  
  // Domain length in x-direction
  double l_x=1.0;
  
  // Domain length in y-direction
  double l_y=1.0;
  
  
  // Build and assign meshes 
  
  // Triangular meshes
  //------------------
  if (use_triangles)
   {
    // Backward step domain
    //---------------------
    if (Problem_id==Global_Variables::Step)
     {
      oomph_info << "Can't do backward step with triangles\n";
      exit(1);
     }
    // Square domain
    //--------------
    else
     {
      mesh_pt() = new SimpleRectangularTriMesh<TTaylorHoodElement<2> >
       (n_x,n_y,l_x,l_y);
      
      dynamic_cast<SimpleRectangularTriMesh<TTaylorHoodElement<2> >*>(mesh_pt())
       ->setup_boundary_element_info();
     }
   }
  // Quad meshes
  //-----------
  else
   {
    // Backward step domain
    //---------------------
    if (Problem_id==Global_Variables::Step)
     {
      l_x=6.0;
      l_y=2.0;
      n_x=6*n_el; // These are appropriate for n_el = number of elements across
      n_y=2*n_el; // inflow, as in David's book
      unsigned nx_cut_out=5*n_el;
      unsigned ny_cut_out=1*n_el;
      if (use_adaptivity)
       {
        mesh_pt()=new 
         RefineableBackwardStepQuadMesh<RefineableQTaylorHoodElement<2> >
         (n_x,n_y,nx_cut_out,ny_cut_out,l_x,l_y);
       }
      else
       {
        mesh_pt()=new BackwardStepQuadMesh<QTaylorHoodElement<2> >
         (n_x,n_y,nx_cut_out,ny_cut_out,l_x,l_y);
       }
     }
    // Square domain
    //--------------
    else
     {
      if (use_adaptivity)
       {
        mesh_pt() = new 
         RefineableRectangularQuadMesh<RefineableQTaylorHoodElement<2> >
         (n_x,n_y,l_x,l_y);     
       }
      else
       {
        mesh_pt() = 
         new SimpleRectangularQuadMesh<QTaylorHoodElement<2> >
         (n_x,n_y,l_x,l_y);
       }
     } 
   }
  
  
  // Set Navier Stokes mesh
  prec_pt->set_navier_stokes_mesh(mesh_pt());
  
  
  
  
  
  // In/outflow bcs
  //---------------
  
  // Set the boundary conditions for this problem: All nodes are
  // free by default -- just pin the ones that have Dirichlet conditions
  // here. 
  unsigned num_bound = mesh_pt()->nboundary();
  for(unsigned ibound=0;ibound<num_bound;ibound++)
   {
    unsigned num_nod= mesh_pt()->nboundary_node(ibound);
    for (unsigned inod=0;inod<num_nod;inod++)
     {
      // Loop over values (u and v velocities)
      for (unsigned i=0;i<2;i++)
       {
        mesh_pt()->boundary_node_pt(ibound,inod)->pin(i); 
       }
     }
   } // end loop over boundaries
  
  
  // Backward step: Unpin outflow on boundary 5
  if (Problem_id==Global_Variables::Step)
   {
    unsigned ibound=5;
    unsigned num_nod= mesh_pt()->nboundary_node(ibound);
    for (unsigned inod=0;inod<num_nod;inod++)
     {
      Node* nod_pt=mesh_pt()->boundary_node_pt(ibound,inod);
      if ( (!(nod_pt->is_on_boundary(4))) &&
           (!(nod_pt->is_on_boundary(0))) )
       {
        nod_pt->unpin(0);
        // Unpin transverse velocity if non-stress divergence form
        if (NavierStokesEquations<2>::Gamma[0]==0.0)
         {
          nod_pt->unpin(1);
         }
       }
     }
   }
  
  
  // Complete the build of all elements so they are fully functional
  
  //Find number of elements in mesh
  unsigned n_element = mesh_pt()->nelement();
  
  // Loop over the elements to set up element-specific 
  // things that cannot be handled by constructor
  for(unsigned e=0;e<n_element;e++)
   {
    // Upcast from GeneralisedElement to the present element
    NavierStokesEquations<2>* el_pt = 
     dynamic_cast<NavierStokesEquations<2>*>(mesh_pt()->element_pt(e));
    
    //Set the Reynolds number
    el_pt->re_pt() = &Global_Variables::Re;
   } // end loop over elements
  
  
  // Pin redundant pressure dofs
  if (use_adaptivity)
   {
    RefineableNavierStokesEquations<2>::
     pin_redundant_nodal_pressures(mesh_pt()->element_pt());
   }
  
  // Now set the first pressure value in element 0 to 0.0
  if (Problem_id==Global_Variables::Driven_cavity) fix_pressure(0,0,0.0);
  
  // Setup equation numbering scheme
  oomph_info <<"Number of equations: " << assign_eqn_numbers() << std::endl; 
  
 #ifdef OOMPH_HAS_TRILINOS
  
  // Build iterative linear solver
  oomph_info << "Using Trilinos GMRES\n"; 
  TrilinosAztecOOSolver* iterative_linear_solver_pt = 
   new TrilinosAztecOOSolver;
  
  Solver_pt=iterative_linear_solver_pt;
  
 #else
  
  // Build solve and preconditioner
  Solver_pt = new GMRES<CRDoubleMatrix>;
  dynamic_cast<GMRES<CRDoubleMatrix>*>(Solver_pt)->set_preconditioner_RHS();
  
 #endif
  
  // Limit max. number of iterations
  Solver_pt->max_iter()=200;
  //Solver_pt->tolerance()=1.0e-10;
  
  // Set solver and preconditioner
  Solver_pt->preconditioner_pt() = Prec_pt;
  linear_solver_pt() = Solver_pt;
  
 } // end_of_constructor

◆ ~FpTestProblem() [2/2]

FpTestProblem::~FpTestProblem ( )

inline

Destructor: Cleanup.

   {
    delete Solver_pt;
    delete Prec_pt;
    delete P_matrix_preconditioner_pt;
    delete F_matrix_preconditioner_pt;
    delete mesh_pt();
   }

Member Function Documentation

◆ actions_after_adapt() [1/2]

void FpTestProblem::actions_after_adapt ( )

inlinevirtual

After adaptation: Unpin pressure and pin redudant pressure dofs.

Reimplemented from oomph::Problem.

   {
    // Unpin all pressure dofs
    RefineableNavierStokesEquations<3>::
     unpin_all_pressure_dofs(Bulk_mesh_pt->element_pt());
    
    // Pin redundant pressure dofs
    RefineableNavierStokesEquations<3>::
     pin_redundant_nodal_pressures(Bulk_mesh_pt->element_pt());
    
    // Now set the first pressure dof in the first element to 0.0
    if (Problem_id==Global_Variables::Driven_cavity) fix_pressure(0,0,0.0);
   } // end_of_actions_after_adapt

References Global_Variables::Driven_cavity.

◆ actions_after_adapt() [2/2]

void FpTestProblem::actions_after_adapt ( )

inlinevirtual

After adaptation: Unpin pressure and pin redudant pressure dofs.

Reimplemented from oomph::Problem.

   {
    // Unpin all pressure dofs
    RefineableNavierStokesEquations<2>::
     unpin_all_pressure_dofs(mesh_pt()->element_pt());
    
    // Pin redundant pressure dofs
    RefineableNavierStokesEquations<2>::
     pin_redundant_nodal_pressures(mesh_pt()->element_pt());
    
    // Now set the first pressure dof in the first element to 0.0
    if (Problem_id==Global_Variables::Driven_cavity) fix_pressure(0,0,0.0);
   } // end_of_actions_after_adapt

References Global_Variables::Driven_cavity.

◆ actions_after_newton_solve() [1/2]

void FpTestProblem::actions_after_newton_solve ( )

inlinevirtual

Update the after solve (empty)

Reimplemented from oomph::Problem.

178 {}

◆ actions_after_newton_solve() [2/2]

void FpTestProblem::actions_after_newton_solve ( )

inlinevirtual

Update the after solve (empty)

Reimplemented from oomph::Problem.

169 {}

◆ actions_after_newton_step() [1/2]

void FpTestProblem::actions_after_newton_step ( )

inlinevirtual

Actions after Newton step record number of iterations.

Reimplemented from oomph::Problem.

   {                               
    Global_Variables::Iterations.push_back(
     dynamic_cast<IterativeLinearSolver*>
     (this->linear_solver_pt())->iterations());
    
    Global_Variables::Linear_solver_time.push_back(
     linear_solver_pt()->linear_solver_solution_time());
   }  

References Global_Variables::Iterations, and Global_Variables::Linear_solver_time.

◆ actions_after_newton_step() [2/2]

void FpTestProblem::actions_after_newton_step ( )

inlinevirtual

Actions after Newton step record number of iterations.

Reimplemented from oomph::Problem.

   {                               
    Global_Variables::Iterations.push_back(
     dynamic_cast<IterativeLinearSolver*>
     (this->linear_solver_pt())->iterations());
             
    Global_Variables::Linear_solver_time.push_back(
     linear_solver_pt()->linear_solver_solution_time());
   }  

References Global_Variables::Iterations, and Global_Variables::Linear_solver_time.

◆ actions_before_newton_solve() [1/2]

void FpTestProblem::actions_before_newton_solve ( )

inlinevirtual

Update the problem specs before solve.

Reimplemented from oomph::Problem.

  {
   // Initialise counter for iterations
   Global_Variables::Iterations.clear();
   Global_Variables::Linear_solver_time.clear();
  
   // Driven cavity bcs
   if (Problem_id==Global_Variables::Driven_cavity)
    {
     // Setup tangential flow along driven boundary
     unsigned ibound=Driven_boundary;
     unsigned num_nod= Bulk_mesh_pt->nboundary_node(ibound);
     for (unsigned inod=0;inod<num_nod;inod++)
      {
       // Tangential flow
       Bulk_mesh_pt->boundary_node_pt(ibound,inod)->set_value(0,1.0);
       Bulk_mesh_pt->boundary_node_pt(ibound,inod)->set_value(1,0.0);
       
       // No penetration
       Bulk_mesh_pt->boundary_node_pt(ibound,inod)->set_value(2,0.0);
      }
     
     // Overwrite with no flow along the other boundaries
     unsigned num_bound = Bulk_mesh_pt->nboundary();
     for(unsigned ibound=0;ibound<num_bound;ibound++)
      {
       if (ibound!=Driven_boundary)
        {
         unsigned num_nod= Bulk_mesh_pt->nboundary_node(ibound);
         for (unsigned inod=0;inod<num_nod;inod++)
          {
           for (unsigned i=0;i<3;i++)
            {
             Bulk_mesh_pt->boundary_node_pt(ibound,inod)->set_value(i,0.0);
            }
          }
        }
      }
    }
   // Inflow at left boundary
   else
    {
     // Inflow in upper half of inflow boundary
     unsigned ibound=Inflow_boundary; 
     unsigned num_nod= Bulk_mesh_pt->nboundary_node(ibound);
     for (unsigned inod=0;inod<num_nod;inod++)
      {
       Node* nod_pt=Bulk_mesh_pt->boundary_node_pt(ibound,inod);
       double y=nod_pt->x(1);
       double z=nod_pt->x(2);
       if ((y>0.5)&&(z>0.5))
        {
         double u=(y-0.5)*(1.0-y)*(z-0.5)*(1.0-z);
         nod_pt->set_value(0,u);
        }
       else
        {
         nod_pt->set_value(0,0.0);
        }
       nod_pt->set_value(1,0.0);
       nod_pt->set_value(2,0.0);
      }
    }
   
  } // end_of_actions_before_newton_solve

References Global_Variables::Driven_cavity, i, Global_Variables::Iterations, Global_Variables::Linear_solver_time, oomph::Data::set_value(), oomph::Node::x(), and y.

◆ actions_before_newton_solve() [2/2]

void FpTestProblem::actions_before_newton_solve ( )

inlinevirtual

Update the problem specs before solve.

Reimplemented from oomph::Problem.

  {
   // Initialise counter for iterations
   Global_Variables::Iterations.clear();
   Global_Variables::Linear_solver_time.clear();
  
   // Driven cavity bcs
   //------------------
   if (Problem_id==Global_Variables::Driven_cavity)
    {
     // Setup tangential flow along boundary 0:
     unsigned ibound=0; 
     unsigned num_nod= mesh_pt()->nboundary_node(ibound);
     for (unsigned inod=0;inod<num_nod;inod++)
      {
       // Tangential flow
       mesh_pt()->boundary_node_pt(ibound,inod)->set_value(0,1.0);
       // No penetration
       mesh_pt()->boundary_node_pt(ibound,inod)->set_value(1,0.0);
      }
     
     // Overwrite with no flow along the other boundaries
     unsigned num_bound = mesh_pt()->nboundary();
     for(unsigned ibound=1;ibound<num_bound;ibound++)
      {
       unsigned num_nod= mesh_pt()->nboundary_node(ibound);
       for (unsigned inod=0;inod<num_nod;inod++)
        {
         for (unsigned i=0;i<2;i++)
          {
           mesh_pt()->boundary_node_pt(ibound,inod)->set_value(i,0.0);
          }
        }
      }
    }
   // Step
   //-----
   else if (Problem_id==Global_Variables::Step)
    {
     // Inflow on boundary 3
     unsigned ibound=3; 
     unsigned num_nod= mesh_pt()->nboundary_node(ibound);
     for (unsigned inod=0;inod<num_nod;inod++)
      {
       Node* nod_pt=mesh_pt()->boundary_node_pt(ibound,inod);
       double x=nod_pt->x(1);
       double u=-4.0*(2.0-x)*(x-1.0);
       nod_pt->set_value(0,u);
       nod_pt->set_value(1,0.0);
      }
    }
  
  
  } // end_of_actions_before_newton_solve

References Global_Variables::Driven_cavity, i, Global_Variables::Iterations, Global_Variables::Linear_solver_time, oomph::Data::set_value(), Global_Variables::Step, plotDoE::x, and oomph::Node::x().

◆ bulk_mesh_pt()

Mesh*& FpTestProblem::bulk_mesh_pt ( )

inline

Pointer to the "bulk" mesh.

269 {return Bulk_mesh_pt;}

◆ create_refineable_traction_elements()

template<class ELEMENT >

void FpTestProblem::create_refineable_traction_elements

Create refineable traction elements on outflow boundary.

Create Navier-Stokes traction elements on outflow boundary.

 {
  
  unsigned b=Outflow_boundary;
  
  // How many bulk elements are adjacent to boundary b?
  unsigned n_element = Bulk_mesh_pt->nboundary_element(b);
  
  // Loop over the bulk elements adjacent to boundary b?
  for(unsigned e=0;e<n_element;e++)
   {
    // Get pointer to the bulk element that is adjacent to boundary b
    ELEMENT* bulk_elem_pt = dynamic_cast<ELEMENT*>(
     Bulk_mesh_pt->boundary_element_pt(b,e));
    
    //What is the index of the face of element e along boundary b
    int face_index = Bulk_mesh_pt->face_index_at_boundary(b,e);
    
    // Build the corresponding prescribed-flux element
    RefineableNavierStokesTractionElement<ELEMENT>* flux_element_pt = new 
     RefineableNavierStokesTractionElement<ELEMENT>(bulk_elem_pt,face_index);
    
    //Add the prescribed-flux element to the surface mesh
    Surface_mesh_pt->add_element_pt(flux_element_pt);
    
    // Set the pointer to the prescribed traction function
    flux_element_pt->traction_fct_pt() = &Global_Variables::prescribed_traction;
    
   } //end of loop over bulk elements adjacent to boundary b
  
  // Now rebuild the global mesh
  rebuild_global_mesh();
  
  // Reassign equation numbers
  oomph_info <<"Number of equations: " << assign_eqn_numbers() << std::endl; 
  
 } // end of create_traction_elements

References b, e(), oomph::oomph_info, Global_Variables::prescribed_traction(), and oomph::NavierStokesTractionElement< ELEMENT >::traction_fct_pt.

◆ create_traction_elements()

template<class ELEMENT >

void FpTestProblem::create_traction_elements

Create traction elements on outflow boundary.

Create Navier-Stokes traction elements on outflow boundary.

 {
  
  unsigned b=Outflow_boundary;
  
  // How many bulk elements are adjacent to boundary b?
  unsigned n_element = Bulk_mesh_pt->nboundary_element(b);
  
  // Loop over the bulk elements adjacent to boundary b?
  for(unsigned e=0;e<n_element;e++)
   {
    // Get pointer to the bulk element that is adjacent to boundary b
    ELEMENT* bulk_elem_pt = dynamic_cast<ELEMENT*>(
     Bulk_mesh_pt->boundary_element_pt(b,e));
    
    //What is the index of the face of element e along boundary b
    int face_index = Bulk_mesh_pt->face_index_at_boundary(b,e);
    
    // Build the corresponding prescribed-flux element
    NavierStokesTractionElement<ELEMENT>* flux_element_pt = new 
       NavierStokesTractionElement<ELEMENT>(bulk_elem_pt,face_index);
  
    //Add the prescribed-flux element to the surface mesh
    Surface_mesh_pt->add_element_pt(flux_element_pt);
    
    // Set the pointer to the prescribed traction function
    flux_element_pt->traction_fct_pt() = &Global_Variables::prescribed_traction;
    
   } //end of loop over bulk elements adjacent to boundary b
  
  // Now rebuild the global mesh
  rebuild_global_mesh();
  
  // Reassign equation numbers
  oomph_info <<"Number of equations: " << assign_eqn_numbers() << std::endl; 
  
 } // end of create_traction_elements

References b, e(), oomph::oomph_info, Global_Variables::prescribed_traction(), and oomph::NavierStokesTractionElement< ELEMENT >::traction_fct_pt.

◆ doc_solution() [1/2]

void FpTestProblem::doc_solution ( DocInfo & doc_info )

Doc the solution.

 { 
  ofstream some_file;
  char filename[100];
  
  // Number of plot points
  unsigned npts;
  npts=5; 
  
  // Output solution 
  sprintf(filename,"%s/soln%i.dat",doc_info.directory().c_str(),
          doc_info.number());
  some_file.open(filename);
  Bulk_mesh_pt->output(some_file,npts);
  some_file.close();
  
 } // end_of_doc_solution

References oomph::DocInfo::directory(), MergeRestartFiles::filename, and oomph::DocInfo::number().

◆ doc_solution() [2/2]

void FpTestProblem::doc_solution ( DocInfo & doc_info )

Doc the solution.

◆ fix_pressure() [1/2]

void FpTestProblem::fix_pressure	(	const unsigned &	e,
		const unsigned &	pdof,
		const double &	pvalue
	)

inline

Fix pressure in element e at pressure dof pdof and set to pvalue.

   {
    //Cast to full element type and fix the pressure at that element
    dynamic_cast<NavierStokesEquations<3>*>(Bulk_mesh_pt->element_pt(e))->
                           fix_pressure(pdof,pvalue);
   } // end of fix_pressure

References e().

◆ fix_pressure() [2/2]

void FpTestProblem::fix_pressure	(	const unsigned &	e,
		const unsigned &	pdof,
		const double &	pvalue
	)

inline

Fix pressure in element e at pressure dof pdof and set to pvalue.

   {
    //Cast to full element type and fix the pressure at that element
    dynamic_cast<NavierStokesEquations<2>*>(mesh_pt()->element_pt(e))->
                           fix_pressure(pdof,pvalue);
   } // end of fix_pressure

References e().

◆ validate_fp() [1/2]

template<class FP_ELEMENT >

void FpTestProblem::validate_fp ( )

inline

Validate fp.

   {
    DocInfo my_doc_info;
    dynamic_cast<NavierStokesSchurComplementPreconditioner*>(
     Prec_pt)->template validate<FP_ELEMENT>(my_doc_info,this);
    pause("done validation");
   }

References oomph::pause().

◆ validate_fp() [2/2]

template<class FP_ELEMENT >

void FpTestProblem::validate_fp ( )

inline

Validate fp.

   {
    DocInfo my_doc_info;
    dynamic_cast<NavierStokesSchurComplementPreconditioner*>(
     Prec_pt)->template validate<FP_ELEMENT>(my_doc_info,this);
    pause("done validation");
   }

References oomph::pause().

Member Data Documentation

◆ Bulk_mesh_pt

Mesh* FpTestProblem::Bulk_mesh_pt

private

Pointer to the "bulk" mesh.

◆ Driven_boundary

unsigned FpTestProblem::Driven_boundary

private

ID of driven boundary.

◆ F_matrix_preconditioner_pt

Preconditioner * FpTestProblem::F_matrix_preconditioner_pt

private

Inexact solver for F block.

◆ Inflow_boundary

unsigned FpTestProblem::Inflow_boundary

private

ID of inflow boundary.

◆ Outflow_boundary

unsigned FpTestProblem::Outflow_boundary

private

ID of outflow boundary.

◆ P_matrix_preconditioner_pt

Preconditioner * FpTestProblem::P_matrix_preconditioner_pt

private

Inexact solver for P block.

◆ Prec_pt

Preconditioner * FpTestProblem::Prec_pt

private

Solver.

◆ Problem_id

unsigned FpTestProblem::Problem_id

private

Problem id.

◆ Solver_pt

IterativeLinearSolver * FpTestProblem::Solver_pt

private

Solver.

◆ Surface_mesh_pt

Mesh* FpTestProblem::Surface_mesh_pt

private

Pointer to the "surface" mesh.

The documentation for this class was generated from the following files:

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FpTestProblem() [1/2]

◆ ~FpTestProblem() [1/2]

◆ FpTestProblem() [2/2]

◆ ~FpTestProblem() [2/2]

Member Function Documentation

◆ actions_after_adapt() [1/2]

◆ actions_after_adapt() [2/2]

◆ actions_after_newton_solve() [1/2]

◆ actions_after_newton_solve() [2/2]

◆ actions_after_newton_step() [1/2]

◆ actions_after_newton_step() [2/2]

◆ actions_before_newton_solve() [1/2]

◆ actions_before_newton_solve() [2/2]

◆ bulk_mesh_pt()

◆ create_refineable_traction_elements()

◆ create_traction_elements()

◆ doc_solution() [1/2]

◆ doc_solution() [2/2]

◆ fix_pressure() [1/2]

◆ fix_pressure() [2/2]

◆ validate_fp() [1/2]

◆ validate_fp() [2/2]

Member Data Documentation

◆ Bulk_mesh_pt

◆ Driven_boundary

◆ F_matrix_preconditioner_pt

◆ Inflow_boundary

◆ Outflow_boundary

◆ P_matrix_preconditioner_pt

◆ Prec_pt

◆ Problem_id

◆ Solver_pt

◆ Surface_mesh_pt