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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 "MassMatrixDGKernel.h" 11 : #include "MassMatrix.h" 12 : 13 : registerMooseObject("NavierStokesApp", MassMatrixDGKernel); 14 : 15 : InputParameters 16 71 : MassMatrixDGKernel::validParams() 17 : { 18 71 : InputParameters params = DGKernel::validParams(); 19 71 : params.addClassDescription( 20 : "Computes a finite element mass matrix on internal faces meant for use in " 21 : "preconditioning schemes which require one"); 22 71 : MassMatrix::setMassMatrixParams(params); 23 142 : params.addParam<Real>("density", 1, "The density"); 24 71 : return params; 25 0 : } 26 : 27 39 : MassMatrixDGKernel::MassMatrixDGKernel(const InputParameters & parameters) 28 78 : : DGKernel(parameters), _density(getParam<Real>("density")) 29 : { 30 78 : if (!isParamValid("matrix_tags") && !isParamValid("extra_matrix_tags")) 31 0 : mooseError("One of 'matrix_tags' or 'extra_matrix_tags' must be provided"); 32 39 : } 33 : 34 : Real 35 0 : MassMatrixDGKernel::computeQpResidual(Moose::DGResidualType) 36 : { 37 : mooseAssert(false, "should never be called"); 38 0 : return 0; 39 : } 40 : 41 : Real 42 14929380 : MassMatrixDGKernel::computeQpJacobian(const Moose::DGJacobianType type) 43 : { 44 : Real jac = 0; 45 : 46 14929380 : switch (type) 47 : { 48 3732345 : case Moose::ElementElement: 49 3732345 : jac = _test[_i][_qp] * _density * _phi[_j][_qp]; 50 3732345 : break; 51 : 52 : default: 53 : jac = 0; 54 : break; 55 : } 56 : 57 14929380 : return jac; 58 : }