Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #include "LinearFVMomentumPressure.h"
      11             : #include "Assembly.h"
      12             : #include "SubProblem.h"
      13             : #include "NS.h"
      14             : #include "FEProblemBase.h"
      15             : 
      16             : registerMooseObject("NavierStokesApp", LinearFVMomentumPressure);
      17             : 
      18             : InputParameters
      19        2471 : LinearFVMomentumPressure::validParams()
      20             : {
      21        2471 :   InputParameters params = LinearFVElementalKernel::validParams();
      22        2471 :   params.addClassDescription("Represents the pressure gradient term in the Navier Stokes momentum "
      23             :                              "equations, added to the right hand side.");
      24        2471 :   params.addParam<VariableName>(NS::pressure,
      25             :                                 "The pressure variable whose gradient should be used.");
      26        4942 :   MooseEnum momentum_component("x=0 y=1 z=2");
      27        4942 :   params.addRequiredParam<MooseEnum>(
      28             :       "momentum_component",
      29             :       momentum_component,
      30             :       "The component of the momentum equation that this kernel applies to.");
      31        2471 :   return params;
      32        2471 : }
      33             : 
      34        1298 : LinearFVMomentumPressure::LinearFVMomentumPressure(const InputParameters & params)
      35             :   : LinearFVElementalKernel(params),
      36        1298 :     _index(getParam<MooseEnum>("momentum_component")),
      37        2596 :     _pressure_var(getPressureVariable(NS::pressure))
      38             : {
      39             :   _pressure_var.computeCellGradients();
      40        1298 : }
      41             : 
      42             : MooseLinearVariableFV<Real> &
      43        1298 : LinearFVMomentumPressure::getPressureVariable(const std::string & vname)
      44             : {
      45        1298 :   auto * ptr = dynamic_cast<MooseLinearVariableFV<Real> *>(
      46        1298 :       &_fe_problem.getVariable(_tid, getParam<VariableName>(vname)));
      47             : 
      48        1298 :   if (!ptr)
      49           0 :     paramError(NS::pressure, "The pressure variable should be of type MooseLinearVariableFVReal!");
      50             : 
      51        1298 :   return *ptr;
      52             : }
      53             : 
      54             : Real
      55    20382532 : LinearFVMomentumPressure::computeMatrixContribution()
      56             : {
      57    20382532 :   return 0.0;
      58             : }
      59             : 
      60             : Real
      61    20382532 : LinearFVMomentumPressure::computeRightHandSideContribution()
      62             : {
      63    20382532 :   return -_pressure_var.gradSlnComponent(*_current_elem_info, _index) * _current_elem_volume;
      64             : }