#include <convection_diffusion.h>

Inheritance diagram for GRINS::ConvectionDiffusion:

Collaboration diagram for GRINS::ConvectionDiffusion:

[legend]

Public Member Functions
	ConvectionDiffusion (const GRINS::PhysicsName &physics_name, const GetPot &input)

virtual	~ConvectionDiffusion ()

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

virtual void	set_time_evolving_vars (libMesh::FEMSystem *system)
	Set which variables are time evolving. More...

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

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

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

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

virtual	~Physics ()

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	side_time_derivative (bool compute_jacobian, AssemblyContext &context, CachedValues &cache)
	Time dependent part(s) of physics for boundaries of elements on the domain boundary. More...

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

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

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

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

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

virtual void	nonlocal_mass_residual (bool compute_jacobian, AssemblyContext &context, CachedValues &cache)
	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 (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_side_time_derivative_cache (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_nonlocal_time_derivative_cache (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_element_constraint_cache (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_side_constraint_cache (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_nonlocal_constraint_cache (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_damping_residual_cache (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_mass_residual_cache (const AssemblyContext &context, CachedValues &cache)

virtual void	compute_nonlocal_mass_residual_cache (const AssemblyContext &context, CachedValues &cache)

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...

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...

Protected Attributes
std::vector< libMesh::ParsedFunction< libMesh::Number > >	_v
	Velocity field, ;. More...

libMesh::ParsedFunction< libMesh::Number >	_kappa
	Diffusivity, $\kappa(x,y,z,t)$ . More...

GenericFETypeVariable	_var

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
	ConvectionDiffusion ()

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)

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

Definition at line 37 of file convection_diffusion.h.

Constructor & Destructor Documentation

GRINS::ConvectionDiffusion::ConvectionDiffusion	(	const GRINS::PhysicsName &	physics_name,
		const GetPot &	input
	)

Definition at line 44 of file convection_diffusion.C.

References GRINS::Physics::_ic_handler, _kappa, _v, _var, GRINS::GRINSPrivate::VariableWarehouse::check_and_register_variable(), GRINS::MaterialsParsing::material_name(), GRINS::GenericFETypeVariable::section_name(), and GRINS::ParameterUser::set_parameter().

     : Physics(physics_name,input),
       _v(3,libMesh::ParsedFunction<libMesh::Number>("0.0") ),
       _kappa("0.0"),
       _var(input,physics_name)
   {
     unsigned int n_v_comps = input.vector_variable_size("Physics/"+physics_name+"/velocity_field");
 
     for( unsigned int v = 0; v < n_v_comps; v++ )
       _v[v].reparse( input("Physics/"+physics_name+"/velocity_field", "0.0", v) );
 
     std::string material_name = MaterialsParsing::material_name(input,physics_name);
 
     this->set_parameter(this->_kappa, input,
                         "Materials/"+material_name+"/Diffusivity/value",
                         "DIE!");
 
     GRINSPrivate::VariableWarehouse::check_and_register_variable(this->_var.section_name(physics_name), this->_var);
 
     _ic_handler = new GenericICHandler(physics_name,input);
   }

virtual GRINS::ConvectionDiffusion::~ConvectionDiffusion ( )

inlinevirtual

Definition at line 43 of file convection_diffusion.h.

43 {};

GRINS::ConvectionDiffusion::ConvectionDiffusion ( )

private

Member Function Documentation

void GRINS::ConvectionDiffusion::element_time_derivative	(	bool	compute_jacobian,
		AssemblyContext &	context,
		CachedValues &	cache
	)

virtual

Time dependent part(s) of physics for element interiors.

Reimplemented from GRINS::Physics.

Definition at line 85 of file convection_diffusion.C.

References _kappa, _v, _var, and GRINS::GenericFETypeVariable::var().

   {
     const unsigned int n_dofs = context.get_dof_indices(_var.var()).size();
 
     const std::vector<libMesh::Real> &JxW =
       context.get_element_fe(_var.var())->get_JxW();
 
     const std::vector<std::vector<libMesh::Real> >& phi =
       context.get_element_fe(_var.var())->get_phi();
 
     const std::vector<std::vector<libMesh::RealGradient> >& grad_phi =
       context.get_element_fe(_var.var())->get_dphi();
 
     const std::vector<libMesh::Point>& x =
       context.get_element_fe(_var.var())->get_xyz();
 
     libMesh::DenseSubVector<libMesh::Number> &F = context.get_elem_residual(_var.var());
 
     libMesh::DenseSubMatrix<libMesh::Number> &K = context.get_elem_jacobian(_var.var(), _var.var());
 
     unsigned int n_qpoints = context.get_element_qrule().n_points();
 
     for (unsigned int qp=0; qp != n_qpoints; qp++)
       {
         libMesh::Number c = context.interior_value(_var.var(), qp);
 
         libMesh::Gradient grad_c;
         context.interior_gradient(_var.var(), qp, grad_c);
 
         libMesh::RealGradient v_qp;
         v_qp(0) = this->_v[0](x[qp], context.get_time());
         v_qp(1) = this->_v[1](x[qp], context.get_time());
         v_qp(2) = this->_v[2](x[qp], context.get_time());
 
         libMesh::Real kappa_qp = this->_kappa(x[qp], context.time);
 
         for (unsigned int i=0; i != n_dofs; i++)
           {
             F(i) += JxW[qp]*( c*(v_qp*grad_phi[i][qp])
                               - kappa_qp*(grad_c*grad_phi[i][qp]) );
 
             if (compute_jacobian)
               {
                 for (unsigned int j=0; j != n_dofs; j++)
                   {
                     K(i,j) += context.get_elem_solution_derivative()*
                               JxW[qp]*( phi[j][qp]*(v_qp*grad_phi[i][qp])
                                       - kappa_qp*(grad_phi[j][qp]*grad_phi[i][qp]) );
                   }
               }
           }
       }
   }

void GRINS::ConvectionDiffusion::init_context ( AssemblyContext & context )

virtual

Initialize context for added physics variables.

Reimplemented from GRINS::Physics.

Definition at line 77 of file convection_diffusion.C.

References _var, and GRINS::GenericFETypeVariable::var().

   {
     context.get_element_fe(_var.var())->get_JxW();
     context.get_element_fe(_var.var())->get_phi();
     context.get_element_fe(_var.var())->get_dphi();
     context.get_element_fe(_var.var())->get_xyz();
   }

void GRINS::ConvectionDiffusion::init_variables ( libMesh::FEMSystem * system )

virtual

Initialize variables for this physics.

Implements GRINS::Physics.

Definition at line 67 of file convection_diffusion.C.

References _var, and GRINS::SingleFETypeVariable::init().

   {
     _var.init(system);
   }

void GRINS::ConvectionDiffusion::mass_residual	(	bool	compute_jacobian,
		AssemblyContext &	context,
		CachedValues &	cache
	)

virtual

Mass matrix part(s) for element interiors. All boundary terms lie within the time_derivative part.

Reimplemented from GRINS::Physics.

Definition at line 141 of file convection_diffusion.C.

References _var, and GRINS::GenericFETypeVariable::var().

   {
     const unsigned int n_dofs = context.get_dof_indices(_var.var()).size();
 
     const std::vector<libMesh::Real> &JxW =
       context.get_element_fe(_var.var())->get_JxW();
 
     const std::vector<std::vector<libMesh::Real> >& phi =
       context.get_element_fe(_var.var())->get_phi();
 
     libMesh::DenseSubVector<libMesh::Number> &F = context.get_elem_residual(_var.var());
 
     libMesh::DenseSubMatrix<libMesh::Number> &M = context.get_elem_jacobian(_var.var(), _var.var());
 
     unsigned int n_qpoints = context.get_element_qrule().n_points();
 
     for (unsigned int qp=0; qp != n_qpoints; qp++)
       {
         libMesh::Real c_dot;
         context.interior_rate(_var.var(), qp, c_dot);
 
         for (unsigned int i=0; i != n_dofs; i++)
           {
             F(i) -= JxW[qp]*( c_dot*phi[i][qp] );
 
             if (compute_jacobian)
               {
                 for (unsigned int j=0; j != n_dofs; j++)
                   {
                     M(i,j) -=
                       context.get_elem_solution_rate_derivative()*
                       JxW[qp]*( phi[j][qp]*phi[i][qp] );
                   }
               }
           }
       }
   }

void GRINS::ConvectionDiffusion::set_time_evolving_vars ( libMesh::FEMSystem * system )

virtual

Set which variables are time evolving.

Set those variables which evolve in time (as opposed to variables that behave like constraints). This is done separately from init_variables() because the MultiphysicsSystem must initialize its base class before time_evolving variables can be set. Default implementation is no time evolving variables.

Reimplemented from GRINS::Physics.

Definition at line 72 of file convection_diffusion.C.

References _var, and GRINS::GenericFETypeVariable::var().

   {
     system->time_evolving(_var.var());
   }

Member Data Documentation

libMesh::ParsedFunction<libMesh::Number> GRINS::ConvectionDiffusion::_kappa

protected

Diffusivity, $\kappa(x,y,z,t)$ .

Definition at line 67 of file convection_diffusion.h.

Referenced by ConvectionDiffusion(), and element_time_derivative().

std::vector<libMesh::ParsedFunction<libMesh::Number> > GRINS::ConvectionDiffusion::_v

protected

Velocity field, $ v(x,y,z,t) $ ;.

Definition at line 64 of file convection_diffusion.h.

Referenced by ConvectionDiffusion(), and element_time_derivative().

GenericFETypeVariable GRINS::ConvectionDiffusion::_var

protected

Definition at line 69 of file convection_diffusion.h.

Referenced by ConvectionDiffusion(), element_time_derivative(), init_context(), init_variables(), mass_residual(), and set_time_evolving_vars().

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

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

Public Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation