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...
 
OomphCommunicatorcommunicator_pt ()
 access function to the oomph-lib communicator More...
 
const OomphCommunicatorcommunicator_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 ()
 
LinearSolvermass_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...
 
Timetime_pt () const
 Return a pointer to the global time object (const version). More...
 
doubletime ()
 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 TimeSteppertime_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...
 
doubleminimum_dt ()
 Access function to min timestep in adaptive timestepping. More...
 
doublemaximum_dt ()
 Access function to max timestep in adaptive timestepping. More...
 
unsignedmax_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...
 
doublemax_residuals ()
 
booltime_adaptive_newton_crash_on_solve_fail ()
 Access function for Time_adaptive_newton_crash_on_solve_fail. More...
 
doublenewton_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...
 
doubleglobal_dof_pt (const unsigned &i)
 
doubledof (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...
 
doubledof_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...
 
booluse_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 Problemmake_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 ()
 
doublebifurcation_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 ()
 
intsign_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...
 
NodeTrace_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)
 
doubledof_derivative (const unsigned &i)
 
doubledof_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 *, boolCalculate_dparameter_analytic
 
bool Calculate_hessian_products_analytic
 
LinearAlgebraDistributionDof_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< doubleMax_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< doubleDof_derivative
 Storage for the derivative of the problem variables wrt arc-length. More...
 
Vector< doubleDof_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
 
OomphCommunicatorCommunicator_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: