Template Class NavierStokesParameters¶
Defined in File navier_stokes.h
Inheritance Relationships¶
Base Type¶
public dealii::ParameterAcceptor
Class Documentation¶
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template<int dim, int spacedim = dim>
class NavierStokesParameters : public dealii::ParameterAcceptor¶ Parameters for a standalone transient incompressible fluid problem.
The problem solved by NavierStokesSolver is
\[ \rho(\partial_t u + (u\cdot\nabla)u) - \operatorname{div}(2\nu\varepsilon(u)) + \nabla p = \rho f, \qquad \operatorname{div}u=0. \]The first implementation uses backward Euler for the mass and viscous terms. When
include_convective_termis true, the convective term is evaluated with the accepted velocity from the previous time step and moved explicitly to the right-hand side. Setting it to false gives unsteady Stokes.Public Functions
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explicit NavierStokesParameters(const std::string &subsection = "/Navier-Stokes/")¶
Construct a parameter object below
subsection.
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void set_time(const double time) const¶
Update the time used by all parsed functions.
Public Members
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std::string output_directory = "."¶
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std::string output_name = "navier_stokes"¶
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TimeIntervalParameters time_parameters¶
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FixedStepParameters fixed_step_parameters¶
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IDAParameters ida_parameters¶
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unsigned int velocity_degree = 2¶
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unsigned int pressure_degree = 1¶
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unsigned int initial_refinement = 1¶
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std::list<dealii::types::boundary_id> dirichlet_ids = {0}¶
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std::string name_of_grid = "hyper_cube"¶
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std::string arguments_for_grid = "-1: 1: false"¶
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std::string triangulation_type = "distributed"¶
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double density = 1.0¶
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double viscosity = 1.0¶
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bool include_convective_term = true¶
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std::string analytical_solution_expression = dim == 2 ? "0; 0; 0" : "0; 0; 0; 0"¶
Optional exact field expression used by external error postprocessing.
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mutable dealii::ParsedConvergenceTable convergence_table¶
Parameter-driven convergence/error table for manufactured solutions.
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mutable dealii::ParameterAcceptorProxy<dealii::Functions::ParsedFunction<spacedim>> initial_condition¶
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mutable dealii::ParameterAcceptorProxy<dealii::ReductionControl> solver_control¶
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unsigned int inner_solver_max_steps = 200¶
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double inner_solver_tolerance = 1.e-10¶
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bool log_solver_iterations = false¶
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explicit NavierStokesParameters(const std::string &subsection = "/Navier-Stokes/")¶