CompressedSquareProblem< ELEMENT > Class Template Reference

Problem class. More...

+ Inheritance diagram for CompressedSquareProblem< ELEMENT >:

Public Member Functions

 CompressedSquareProblem (const bool &incompress)
 
void actions_after_newton_solve ()
 Update function (empty) More...
 
void actions_before_newton_solve ()
 Update function (empty) More...
 
void doc_solution (const bool &incompress)
 Doc the solution. More...
 
void run_it (const int &i_case, const bool &incompress)
 Run the job – doc in RESLTi_case. 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 ()
 
virtual void actions_after_adapt ()
 Actions that are to be performed after a mesh adaptation. More...
 
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

ofstream Trace_file
 Trace file. More...
 
Node * Trace_node_pt
 Pointers to node whose position we're tracing. More...
 
DocInfo Doc_info
 DocInfo object for output. 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_after_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

template<class ELEMENT>
class CompressedSquareProblem< ELEMENT >

Problem class.

Constructor & Destructor Documentation

◆ CompressedSquareProblem()

template<class ELEMENT >
CompressedSquareProblem< ELEMENT >::CompressedSquareProblem ( const bool &  incompress)

Constructor: Pass flag that determines if we want to use a true incompressible formulation

Constructor: Pass flag that determines if we want to enforce incompressibility

191 {
192 
193  // Create the mesh
194 
195  // # of elements in x-direction
196  unsigned n_x=5;
197 
198  // # of elements in y-direction
199  unsigned n_y=5;
200 
201  // Domain length in x-direction
202  double l_x=1.0;
203 
204  // Domain length in y-direction
205  double l_y=1.0;
206 
207  //Now create the mesh
208  mesh_pt() = new ElasticRectangularQuadMesh<ELEMENT>(n_x,n_y,l_x,l_y);
209 
210 
211  //Assign the physical properties to the elements
212  unsigned n_element=mesh_pt()->nelement();
213  for(unsigned i=0;i<n_element;i++)
214  {
215  //Cast to a solid element
216  ELEMENT *el_pt = dynamic_cast<ELEMENT*>(mesh_pt()->element_pt(i));
217 
218  // Set the constitutive law
219  el_pt->constitutive_law_pt() =
221 
222  //Set the body force
223  el_pt->body_force_fct_pt() = Global_Physical_Variables::gravity;
224 
225 
226  // Is the element based on the pressure/displacement formulation?
227  PVDEquationsWithPressure<2>* test_pt =
228  dynamic_cast<PVDEquationsWithPressure<2>*>(mesh_pt()->element_pt(i));
229  if (test_pt!=0)
230  {
231  // Do we want true incompressibility (formulation III in the
232  // associated tutorial) or not (formulation II)
233  if (incompress)
234  {
235  test_pt->set_incompressible();
236  }
237  else
238  {
239  // Note that this assignment isn't strictly necessary as it's the
240  // default setting, but it doesn't do any harm to be explicit.
241  test_pt->set_compressible();
242  }
243  }
244  } // end compressibility
245 
246 
247  // Choose a control node: The last node in the solid mesh
248  unsigned nnod=mesh_pt()->nnode();
249  Trace_node_pt=mesh_pt()->node_pt(nnod-1);
250 
251 // Pin the left and right boundaries (1 and 2) in the horizontal directions
252  for (unsigned b=1;b<4;b+=2)
253  {
254  unsigned nnod = mesh_pt()->nboundary_node(b);
255  for(unsigned i=0;i<nnod;i++)
256  {
257  dynamic_cast<SolidNode*>(
258  mesh_pt()->boundary_node_pt(b,i))->pin_position(0);
259  }
260  }
261 
262 // Pin the bottom boundary (0) in the vertical direction
263  unsigned b=0;
264  {
265  unsigned nnod= mesh_pt()->nboundary_node(b);
266  for(unsigned i=0;i<nnod;i++)
267  {
268  dynamic_cast<SolidNode*>(
269  mesh_pt()->boundary_node_pt(b,i))->pin_position(1);
270  }
271  }
272 
273  //Assign equation numbers
275 
276 } //end of constructor
int i
Definition: BiCGSTAB_step_by_step.cpp:9
Scalar * b
Definition: benchVecAdd.cpp:17
Node * Trace_node_pt
Pointers to node whose position we're tracing.
Definition: compressed_square.cc:176
Definition: rectangular_quadmesh.template.h:423
unsigned long nboundary_node(const unsigned &ibound) const
Return number of nodes on a particular boundary.
Definition: mesh.h:833
GeneralisedElement *& element_pt(const unsigned long &e)
Return pointer to element e.
Definition: mesh.h:448
unsigned long nnode() const
Return number of nodes in the mesh.
Definition: mesh.h:596
Node *& node_pt(const unsigned long &n)
Return pointer to global node n.
Definition: mesh.h:436
Node *& boundary_node_pt(const unsigned &b, const unsigned &n)
Return pointer to node n on boundary b.
Definition: mesh.h:493
unsigned long nelement() const
Return number of elements in the mesh.
Definition: mesh.h:590
Definition: solid_elements.h:863
void set_compressible()
Set the material to be compressible.
Definition: solid_elements.h:887
void set_incompressible()
Set the material to be incompressible.
Definition: solid_elements.h:881
Mesh *& mesh_pt()
Return a pointer to the global mesh.
Definition: problem.h:1280
unsigned long assign_eqn_numbers(const bool &assign_local_eqn_numbers=true)
Definition: problem.cc:1989
Definition: nodes.h:1686
void gravity(const double &time, const Vector< double > &xi, Vector< double > &b)
Non-dimensional gravity as body force.
Definition: meshing/quad_from_triangle_mesh/unstructured_two_d_solid.cc:217
ConstitutiveLaw * Constitutive_law_pt
Pointer to constitutive law.
Definition: TwenteMeshGluing.cpp:65

References b, Global_Physical_Variables::Constitutive_law_pt, Global_Physical_Variables::gravity(), i, oomph::PVDEquationsWithPressure< DIM >::set_compressible(), and oomph::PVDEquationsWithPressure< DIM >::set_incompressible().

Member Function Documentation

◆ actions_after_newton_solve()

template<class ELEMENT >
void CompressedSquareProblem< ELEMENT >::actions_after_newton_solve ( )
inlinevirtual

Update function (empty)

Reimplemented from oomph::Problem.

158 {}

◆ actions_before_newton_solve()

template<class ELEMENT >
void CompressedSquareProblem< ELEMENT >::actions_before_newton_solve ( )
inlinevirtual

Update function (empty)

Reimplemented from oomph::Problem.

161 {}

◆ doc_solution()

template<class ELEMENT >
void CompressedSquareProblem< ELEMENT >::doc_solution ( const bool &  incompress)

Doc the solution.

Doc the solution & exact (linear) solution for compressible or incompressible materials

285 {
286  ofstream some_file;
287  char filename[100];
288 
289  // Number of plot points
290  unsigned n_plot = 5;
291 
292  // Output shape of and stress in deformed body
293  sprintf(filename,"%s/soln%i.dat",Doc_info.directory().c_str(),
294  Doc_info.number());
295  some_file.open(filename);
296  mesh_pt()->output(some_file,n_plot);
297  some_file.close();
298 
299  // Write trace file: Load/displacement characteristics
301  << Trace_node_pt->x(0) << " "
302  << Trace_node_pt->x(1) << " "
303  << std::endl;
304 
305 
306  // Output exact solution for linear elasticity
307  // -------------------------------------------
308  sprintf(filename,"%s/exact_soln%i.dat",Doc_info.directory().c_str(),
309  Doc_info.number());
310  some_file.open(filename);
311  unsigned nelem=mesh_pt()->nelement();
312  Vector<double> s(2);
313  Vector<double> x(2);
315 
316  // Poisson's ratio
318  if (incompress) nu=0.5;
319 
320  // Loop over all elements
321  for (unsigned e=0;e<nelem;e++)
322  {
323  //Cast to a solid element
324  ELEMENT* el_pt = dynamic_cast<ELEMENT*>(mesh_pt()->element_pt(e));
325 
326  //Tecplot header info
327  some_file << "ZONE I=" << n_plot << ", J=" << n_plot << std::endl;
328 
329  //Loop over plot points
330  for(unsigned l2=0;l2<n_plot;l2++)
331  {
332  s[1] = -1.0 + l2*2.0/(n_plot-1);
333  for(unsigned l1=0;l1<n_plot;l1++)
334  {
335  s[0] = -1.0 + l1*2.0/(n_plot-1);
336 
337  // Get Lagrangian coordinates
338  el_pt->interpolated_x(s,x);
339 
340  // Output the x,y,..
341  for(unsigned i=0;i<2;i++)
342  {some_file << x[i] << " ";}
343 
344  // Exact vertical displacement
345  double v_exact=Global_Physical_Variables::Gravity*
346  (1.0+nu)*(1.0-2*nu)/(1.0-nu)*(0.5*x[1]*x[1]-x[1]);
347 
348  // x and y displacement
349  some_file << "0.0 " << v_exact << " ";
350 
351  // Stresses
352  sigma(0,0)=nu/(1.0-nu)*Global_Physical_Variables::Gravity*(x[1]-1.0);
353  sigma(1,0)=0.0;
355 
356  // Output linear stress tensor
357  some_file << sigma(0,0) << " "
358  << sigma(1,0) << " "
359  << sigma(1,1) << " "
360  << std::endl;
361  }
362  }
363  }
364  some_file.close();
365 
366  // Increment label for output files
367  Doc_info.number()++;
368 
369 } //end doc
Array< double, 1, 3 > e(1./3., 0.5, 2.)
DocInfo Doc_info
DocInfo object for output.
Definition: compressed_square.cc:179
ofstream Trace_file
Trace file.
Definition: compressed_square.cc:173
std::string directory() const
Output directory.
Definition: oomph_utilities.h:524
unsigned & number()
Number used (e.g.) for labeling output files.
Definition: oomph_utilities.h:554
void output(std::ostream &outfile)
Output for all elements.
Definition: mesh.cc:2027
double & x(const unsigned &i)
Return the i-th nodal coordinate.
Definition: nodes.h:1060
RealScalar s
Definition: level1_cplx_impl.h:130
double Nu
Poisson's ratio.
Definition: TwenteMeshGluing.cpp:71
double Gravity
Non-dim gravity.
Definition: meshing/quad_from_triangle_mesh/unstructured_two_d_solid.cc:214
string filename
Definition: MergeRestartFiles.py:39
int sigma
Definition: calibrate.py:179
list x
Definition: plotDoE.py:28

References oomph::DocInfo::directory(), GlobalParameters::Doc_info, e(), MergeRestartFiles::filename, Global_Physical_Variables::Gravity, i, Global_Physical_Variables::Nu, oomph::DocInfo::number(), s, calibrate::sigma, oomph::Problem_Parameter::Trace_file, and plotDoE::x.

◆ run_it()

template<class ELEMENT >
void CompressedSquareProblem< ELEMENT >::run_it ( const int &  i_case,
const bool &  incompress 
)

Run the job – doc in RESLTi_case.

Run it.

381 {
382 
383  // Set output directory
384  char dirname[100];
385  sprintf(dirname,"RESLT%i",i_case);
386  Doc_info.set_directory(dirname);
387 
388  // Open trace file
389  char filename[100];
390  sprintf(filename,"%s/trace.dat",Doc_info.directory().c_str());
391  Trace_file.open(filename);
392 
393 
394  // Doc initial configuration
395  doc_solution(incompress);
396 
397  // Initial values for parameter values
399 
400  //Parameter incrementation
401  unsigned nstep=1;
402  double g_increment=1.0e-2;
403  for(unsigned i=0;i<nstep;i++)
404  {
405  // Bump up gravity
407 
408  // Solve
409  newton_solve();
410 
411  // Doc solution
412  doc_solution(incompress);
413  }
414 
415 }
void doc_solution(const bool &incompress)
Doc the solution.
Definition: compressed_square.cc:284
void set_directory(const std::string &directory)
Definition: oomph_utilities.cc:298
void newton_solve()
Use Newton method to solve the problem.
Definition: problem.cc:8783

References oomph::DocInfo::directory(), GlobalParameters::Doc_info, MergeRestartFiles::filename, Global_Physical_Variables::Gravity, i, oomph::DocInfo::set_directory(), and oomph::Problem_Parameter::Trace_file.

Member Data Documentation

◆ Doc_info

template<class ELEMENT >
DocInfo CompressedSquareProblem< ELEMENT >::Doc_info
private

DocInfo object for output.

◆ Trace_file

template<class ELEMENT >
ofstream CompressedSquareProblem< ELEMENT >::Trace_file
private

Trace file.

◆ Trace_node_pt

template<class ELEMENT >
Node* CompressedSquareProblem< ELEMENT >::Trace_node_pt
private

Pointers to node whose position we're tracing.


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