#include <velocity_drag_base.h>

Inheritance diagram for GRINS::VelocityDragBase< Viscosity >:

Collaboration diagram for GRINS::VelocityDragBase< Viscosity >:

Public Member Functions
	VelocityDragBase (const std::string &physics_name, const GetPot &input)

	~VelocityDragBase ()

bool	compute_force (const libMesh::Point &point, const libMesh::Real time, const libMesh::NumberVectorValue &U, libMesh::NumberVectorValue &F, libMesh::NumberTensorValue *dFdU=NULL)

Public Member Functions inherited from GRINS::IncompressibleNavierStokesBase< Viscosity >
	IncompressibleNavierStokesBase (const std::string &my_physics_name, const std::string &core_physics_name, const GetPot &input)

	~IncompressibleNavierStokesBase ()

virtual void	set_time_evolving_vars (libMesh::FEMSystem *system)
	Sets velocity variables to be time-evolving. More...

virtual void	init_context (AssemblyContext &context)
	Initialize context for added physics variables. More...

virtual void	register_parameter (const std::string &param_name, libMesh::ParameterMultiAccessor< libMesh::Number > &param_pointer) const
	Each subclass will register its copy of an independent. More...

libMesh::Real	get_viscosity_value (AssemblyContext &context, unsigned int qp) const

Public Member Functions inherited from GRINS::Physics
	Physics (const GRINS::PhysicsName &physics_name, const GetPot &input)

virtual	~Physics ()

virtual void	init_variables (libMesh::FEMSystem *)
	Initialize variables for this physics. More...

virtual bool	enabled_on_elem (const libMesh::Elem *elem)
	Find if current physics is active on supplied element. More...

void	set_is_steady (bool is_steady)
	Sets whether this physics is to be solved with a steady solver or not. More...

bool	is_steady () const
	Returns whether or not this physics is being solved with a steady solver. More...

virtual void	auxiliary_init (MultiphysicsSystem &system)
	Any auxillary initialization a Physics class may need. More...

virtual void	register_postprocessing_vars (const GetPot &input, PostProcessedQuantities< libMesh::Real > &postprocessing)
	Register name of postprocessed quantity with PostProcessedQuantities. More...

virtual void	preassembly (MultiphysicsSystem &)
	Perform any necessary setup before element assembly begins. More...

virtual void	reinit (MultiphysicsSystem &)
	Any reinitialization that needs to be done. More...

virtual void	element_time_derivative (bool, AssemblyContext &)
	Time dependent part(s) of physics for element interiors. More...

virtual void	side_time_derivative (bool, AssemblyContext &)
	Time dependent part(s) of physics for boundaries of elements on the domain boundary. More...

virtual void	nonlocal_time_derivative (bool, AssemblyContext &)
	Time dependent part(s) of physics for scalar variables. More...

virtual void	element_constraint (bool, AssemblyContext &)
	Constraint part(s) of physics for element interiors. More...

virtual void	side_constraint (bool, AssemblyContext &)
	Constraint part(s) of physics for boundaries of elements on the domain boundary. More...

virtual void	nonlocal_constraint (bool, AssemblyContext &)
	Constraint part(s) of physics for scalar variables. More...

virtual void	damping_residual (bool, AssemblyContext &)
	Damping matrix part(s) for element interiors. All boundary terms lie within the time_derivative part. More...

virtual void	mass_residual (bool, AssemblyContext &)
	Mass matrix part(s) for element interiors. All boundary terms lie within the time_derivative part. More...

virtual void	nonlocal_mass_residual (bool, AssemblyContext &)
	Mass matrix part(s) for scalar variables. More...

void	init_ics (libMesh::FEMSystem *system, libMesh::CompositeFunction< libMesh::Number > &all_ics)

virtual void	compute_element_time_derivative_cache (AssemblyContext &)

virtual void	compute_side_time_derivative_cache (AssemblyContext &)

virtual void	compute_nonlocal_time_derivative_cache (AssemblyContext &)

virtual void	compute_element_constraint_cache (AssemblyContext &)

virtual void	compute_side_constraint_cache (AssemblyContext &)

virtual void	compute_nonlocal_constraint_cache (AssemblyContext &)

virtual void	compute_damping_residual_cache (AssemblyContext &)

virtual void	compute_mass_residual_cache (AssemblyContext &)

virtual void	compute_nonlocal_mass_residual_cache (AssemblyContext &)

virtual void	compute_postprocessed_quantity (unsigned int quantity_index, const AssemblyContext &context, const libMesh::Point &point, libMesh::Real &value)

ICHandlingBase *	get_ic_handler ()

Public Member Functions inherited from GRINS::ParameterUser
	ParameterUser (const std::string &user_name)

virtual	~ParameterUser ()

virtual void	set_parameter (libMesh::Number &param_variable, const GetPot &input, const std::string &param_name, libMesh::Number param_default)
	Each subclass can simultaneously read a parameter value from. More...

virtual void	set_parameter (libMesh::ParsedFunction< libMesh::Number, libMesh::Gradient > &func, const GetPot &input, const std::string &func_param_name, const std::string &param_default)
	Each subclass can simultaneously read a parsed function from. More...

virtual void	set_parameter (libMesh::ParsedFEMFunction< libMesh::Number > &func, const GetPot &input, const std::string &func_param_name, const std::string &param_default)
	Each subclass can simultaneously read a parsed function from. More...

virtual void	move_parameter (const libMesh::Number &old_parameter, libMesh::Number &new_parameter)
	When cloning an object, we need to update parameter pointers. More...

virtual void	move_parameter (const libMesh::ParsedFunction< libMesh::Number, libMesh::Gradient > &old_func, libMesh::ParsedFunction< libMesh::Number, libMesh::Gradient > &new_func)
	When cloning an object, we need to update parameter pointers. More...

virtual void	move_parameter (const libMesh::ParsedFEMFunction< libMesh::Number > &old_func, libMesh::ParsedFEMFunction< libMesh::Number > &new_func)
	When cloning an object, we need to update parameter pointers. More...

Protected Attributes
libMesh::Real	_exponent

libMesh::ParsedFunction< libMesh::Number >	_coefficient

Protected Attributes inherited from GRINS::IncompressibleNavierStokesBase< Viscosity >
VelocityVariable &	_flow_vars

PressureFEVariable &	_press_var

libMesh::Number	_rho
	Material parameters, read from input. More...

Viscosity	_mu
	Viscosity object. More...

Protected Attributes inherited from GRINS::Physics
const PhysicsName	_physics_name
	Name of the physics object. Used for reading physics specific inputs. More...

GRINS::ICHandlingBase *	_ic_handler

std::set< libMesh::subdomain_id_type >	_enabled_subdomains
	Subdomains on which the current Physics class is enabled. More...

Private Member Functions
	VelocityDragBase ()

void	read_input_options (const GetPot &input)
	Read options from GetPot input file. More...

Additional Inherited Members
Static Public Member Functions inherited from GRINS::Physics
static void	set_is_axisymmetric (bool is_axisymmetric)
	Set whether we should treat the problem as axisymmetric. More...

static bool	is_axisymmetric ()

Static Public Attributes inherited from GRINS::ParameterUser
static std::string	zero_vector_function = std::string("{0}")
	A parseable function string with LIBMESH_DIM components, all 0. More...

Protected Member Functions inherited from GRINS::Physics
libMesh::UniquePtr< libMesh::FEGenericBase< libMesh::Real > >	build_new_fe (const libMesh::Elem elem, const libMesh::FEGenericBase< libMesh::Real > fe, const libMesh::Point p)

void	parse_enabled_subdomains (const GetPot &input, const std::string &physics_name)

void	check_var_subdomain_consistency (const FEVariablesBase &var) const
	Check that var is enabled on at least the subdomains this Physics is. More...

Static Protected Attributes inherited from GRINS::Physics
static bool	_is_steady = false
	Caches whether or not the solver that's being used is steady or not. More...

static bool	_is_axisymmetric = false
	Caches whether we are solving an axisymmetric problem or not. More...

Detailed Description

template<class Viscosity>
class GRINS::VelocityDragBase< Viscosity >

Definition at line 45 of file velocity_drag_base.h.

Constructor & Destructor Documentation

template<class Mu >

GRINS::VelocityDragBase< Mu >::VelocityDragBase	(	const std::string &	physics_name,
		const GetPot &	input
	)

Definition at line 39 of file velocity_drag_base.C.

References GRINS::VelocityDragBase< Viscosity >::read_input_options().

     : IncompressibleNavierStokesBase<Mu>(physics_name,
                                          PhysicsNaming::incompressible_navier_stokes(), /* "core" Physics name */
                                          input),
     _coefficient("")
   {
     this->read_input_options(input);
   }

template<class Viscosity >

GRINS::VelocityDragBase< Viscosity >::~VelocityDragBase ( )

inline

Definition at line 51 of file velocity_drag_base.h.

51 {};

template<class Viscosity >

GRINS::VelocityDragBase< Viscosity >::VelocityDragBase ( )

private

Member Function Documentation

template<class Mu >

bool GRINS::VelocityDragBase< Mu >::compute_force	(	const libMesh::Point &	point,
		const libMesh::Real	time,
		const libMesh::NumberVectorValue &	U,
		libMesh::NumberVectorValue &	F,
		libMesh::NumberTensorValue *	dFdU = `NULL`
	)

Definition at line 65 of file velocity_drag_base.C.

   {
     const libMesh::Number Umag = U.norm();
 
     const libMesh::Number coeff_val = _coefficient(point, time);
 
     if (coeff_val == 0)
       return false;
 
     const libMesh::Number F_coeff = std::pow(Umag, _exponent-1) * -coeff_val;
 
     F = F_coeff * U;
 
     if (dFdU)
       {
         const libMesh::Number J_coeff =
           std::pow(Umag, _exponent-2) * -coeff_val * (_exponent-1);
 
         const libMesh::Number invUmag = 1/Umag;
 
         const libMesh::Number JinvU = J_coeff*invUmag;
 
         for (unsigned int i=0; i != 3; ++i)
           {
             const libMesh::Number JinvUI = JinvU*U(i);
             for (unsigned int j=0; j != 3; ++j)
               (*dFdU)(i,j) = JinvUI*U(j);
 
             (*dFdU)(i,i) += F_coeff;
           }
       }
 
     return true;
   }

template<class Mu >

void GRINS::VelocityDragBase< Mu >::read_input_options ( const GetPot & input )

private

Read options from GetPot input file.

Definition at line 49 of file velocity_drag_base.C.

References GRINS::PhysicsNaming::velocity_drag().

Referenced by GRINS::VelocityDragBase< Viscosity >::VelocityDragBase().

   {
     this->set_parameter
       (_exponent, input, "Physics/"+PhysicsNaming::velocity_drag()+"/exponent", 2);
 
     this->set_parameter(_coefficient, input,
                         "Physics/"+PhysicsNaming::velocity_drag()+"/coefficient",
                         "0");
 
     if (_coefficient.expression() == "0")
       libmesh_error_msg("Warning! Zero VelocityDrag specified!" <<
                         std::endl);
   }

Member Data Documentation

template<class Viscosity >

libMesh::ParsedFunction<libMesh::Number> GRINS::VelocityDragBase< Viscosity >::_coefficient

protected

Definition at line 62 of file velocity_drag_base.h.

template<class Viscosity >

libMesh::Real GRINS::VelocityDragBase< Viscosity >::_exponent

protected

Definition at line 61 of file velocity_drag_base.h.

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

src/physics/include/grins/velocity_drag_base.h
src/physics/src/velocity_drag_base.C

Public Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Detailed Description

template<class Viscosity> class GRINS::VelocityDragBase< Viscosity >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class Viscosity>
class GRINS::VelocityDragBase< Viscosity >