INSMomentumNoBCBCBase Class Reference

Base class for the "No BC" boundary condition. More...

#include <INSMomentumNoBCBCBase.h>

Inheritance diagram for INSMomentumNoBCBCBase:

Public Member Functions
	INSMomentumNoBCBCBase (const InputParameters &parameters)
virtual	~INSMomentumNoBCBCBase ()

Protected Attributes
const VariableValue &	_u_vel
const VariableValue &	_v_vel
const VariableValue &	_w_vel
const VariableValue &	_p
const VariableGradient &	_grad_u_vel
const VariableGradient &	_grad_v_vel
const VariableGradient &	_grad_w_vel
unsigned	_u_vel_var_number
unsigned	_v_vel_var_number
unsigned	_w_vel_var_number
unsigned	_p_var_number
RealVectorValue	_gravity
unsigned	_component
bool	_integrate_p_by_parts
const MaterialProperty< Real > &	_mu
const MaterialProperty< Real > &	_rho

Detailed Description

Base class for the "No BC" boundary condition.

Subclasses will implement the computeQpXYZ() functions differently based on whether the "traction" or "Laplacian" form of the viscous stress tensor is used. The idea behind this is discussed by Griffiths, Papanastiou, and others. Note that this BC, unlike the natural BC, is insufficient to set the value of the pressure in outflow problems, and therefore you will need to implement a pressure pin or similar approach for constraining the null space of constant pressures.

Definition at line 30 of file INSMomentumNoBCBCBase.h.

Constructor & Destructor Documentation

INSMomentumNoBCBCBase()

INSMomentumNoBCBCBase::INSMomentumNoBCBCBase

(

const InputParameters &

parameters

)

Definition at line 42 of file INSMomentumNoBCBCBase.C.

  : IntegratedBC(parameters),
 
    // Coupled variables
    _u_vel(coupledValue("u")),
    _v_vel(_mesh.dimension() >= 2 ? coupledValue("v") : _zero),
    _w_vel(_mesh.dimension() == 3 ? coupledValue("w") : _zero),
    _p(coupledValue("p")),
 
    // Gradients
    _grad_u_vel(coupledGradient("u")),
    _grad_v_vel(_mesh.dimension() >= 2 ? coupledGradient("v") : _grad_zero),
    _grad_w_vel(_mesh.dimension() == 3 ? coupledGradient("w") : _grad_zero),
 
    // Variable numberings
    _u_vel_var_number(coupled("u")),
    _v_vel_var_number(_mesh.dimension() >= 2 ? coupled("v") : libMesh::invalid_uint),
    _w_vel_var_number(_mesh.dimension() == 3 ? coupled("w") : libMesh::invalid_uint),
    _p_var_number(coupled("p")),
 
    // Required parameters
    _gravity(getParam<RealVectorValue>("gravity")),
    _component(getParam<unsigned>("component")),
    _integrate_p_by_parts(getParam<bool>("integrate_p_by_parts")),
 
    // Material properties
    _mu(getMaterialProperty<Real>("mu_name")),
    _rho(getMaterialProperty<Real>("rho_name"))
{
}

~INSMomentumNoBCBCBase()

virtual INSMomentumNoBCBCBase::~INSMomentumNoBCBCBase ( )

inlinevirtual

Definition at line 35 of file INSMomentumNoBCBCBase.h.

{}

Member Data Documentation

_component

unsigned INSMomentumNoBCBCBase::_component

protected

Definition at line 56 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCTractionForm::computeQpJacobian(), INSMomentumNoBCBCTractionForm::computeQpOffDiagJacobian(), INSMomentumNoBCBCLaplaceForm::computeQpOffDiagJacobian(), INSMomentumNoBCBCTractionForm::computeQpResidual(), and INSMomentumNoBCBCLaplaceForm::computeQpResidual().

_grad_u_vel

const VariableGradient& INSMomentumNoBCBCBase::_grad_u_vel

protected

Definition at line 45 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCTractionForm::computeQpResidual().

_grad_v_vel

const VariableGradient& INSMomentumNoBCBCBase::_grad_v_vel

protected

Definition at line 46 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCTractionForm::computeQpResidual().

_grad_w_vel

const VariableGradient& INSMomentumNoBCBCBase::_grad_w_vel

protected

Definition at line 47 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCTractionForm::computeQpResidual().

_gravity

RealVectorValue INSMomentumNoBCBCBase::_gravity

protected

Definition at line 55 of file INSMomentumNoBCBCBase.h.

_integrate_p_by_parts

bool INSMomentumNoBCBCBase::_integrate_p_by_parts

protected

Definition at line 57 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCLaplaceForm::computeQpOffDiagJacobian(), INSMomentumNoBCBCTractionForm::computeQpOffDiagJacobian(), INSMomentumNoBCBCTractionForm::computeQpResidual(), and INSMomentumNoBCBCLaplaceForm::computeQpResidual().

_mu

const MaterialProperty<Real>& INSMomentumNoBCBCBase::_mu

protected

Definition at line 59 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCLaplaceForm::computeQpJacobian(), INSMomentumNoBCBCTractionForm::computeQpJacobian(), INSMomentumNoBCBCTractionForm::computeQpOffDiagJacobian(), INSMomentumNoBCBCTractionForm::computeQpResidual(), and INSMomentumNoBCBCLaplaceForm::computeQpResidual().

_p

const VariableValue& INSMomentumNoBCBCBase::_p

protected

Definition at line 42 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCLaplaceForm::computeQpResidual(), and INSMomentumNoBCBCTractionForm::computeQpResidual().

_p_var_number

unsigned INSMomentumNoBCBCBase::_p_var_number

protected

Definition at line 53 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCLaplaceForm::computeQpOffDiagJacobian(), and INSMomentumNoBCBCTractionForm::computeQpOffDiagJacobian().

_rho

const MaterialProperty<Real>& INSMomentumNoBCBCBase::_rho

protected

Definition at line 60 of file INSMomentumNoBCBCBase.h.

_u_vel

const VariableValue& INSMomentumNoBCBCBase::_u_vel

protected

Definition at line 39 of file INSMomentumNoBCBCBase.h.

_u_vel_var_number

unsigned INSMomentumNoBCBCBase::_u_vel_var_number

protected

Definition at line 50 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCTractionForm::computeQpOffDiagJacobian().

_v_vel

const VariableValue& INSMomentumNoBCBCBase::_v_vel

protected

Definition at line 40 of file INSMomentumNoBCBCBase.h.

_v_vel_var_number

unsigned INSMomentumNoBCBCBase::_v_vel_var_number

protected

Definition at line 51 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCTractionForm::computeQpOffDiagJacobian().

_w_vel

const VariableValue& INSMomentumNoBCBCBase::_w_vel

protected

Definition at line 41 of file INSMomentumNoBCBCBase.h.

_w_vel_var_number

unsigned INSMomentumNoBCBCBase::_w_vel_var_number

protected

Definition at line 52 of file INSMomentumNoBCBCBase.h.

Referenced by INSMomentumNoBCBCTractionForm::computeQpOffDiagJacobian().

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

• navier_stokes/include/bcs/INSMomentumNoBCBCBase.h
• navier_stokes/src/bcs/INSMomentumNoBCBCBase.C