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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 "SecondTimeDerivativeAux.h" 11 : 12 : registerMooseObject("MooseApp", SecondTimeDerivativeAux); 13 : 14 : InputParameters 15 14307 : SecondTimeDerivativeAux::validParams() 16 : { 17 14307 : InputParameters params = AuxKernel::validParams(); 18 14307 : params.addClassDescription("Returns the second order time derivative of the specified variable " 19 : "as an auxiliary variable."); 20 : 21 14307 : params.addRequiredCoupledVar("v", "Variable to take the second time derivative of"); 22 42921 : params.addParam<MooseFunctorName>( 23 28614 : "factor", 1, "Factor to multiply the second time derivative by"); 24 : 25 14307 : return params; 26 0 : } 27 : 28 26 : SecondTimeDerivativeAux::SecondTimeDerivativeAux(const InputParameters & parameters) 29 : : AuxKernel(parameters), 30 26 : _v(coupledDotDot("v")), 31 26 : _factor(getFunctor<Real>("factor")), 32 52 : _use_qp_arg(dynamic_cast<MooseVariableFE<Real> *>(&_var)) 33 : { 34 26 : const auto v_name = coupledName("v"); 35 26 : if (_subproblem.hasVariable(v_name)) 36 : { 37 26 : const auto * functor_var = &_subproblem.getVariable(_tid, v_name); 38 48 : if (dynamic_cast<const MooseVariableFE<Real> *>(&_var) && 39 22 : !dynamic_cast<const MooseVariableFE<Real> *>(functor_var)) 40 0 : mooseWarning("'variable' argument is a finite element variable but 'v' is not."); 41 30 : if (!dynamic_cast<const MooseVariableFE<Real> *>(&_var) && 42 4 : dynamic_cast<const MooseVariableFE<Real> *>(functor_var)) 43 4 : mooseWarning("'v' argument is a finite element variable but 'variable' is not."); 44 : } 45 22 : if (isNodal()) 46 4 : paramError("variable", "This AuxKernel only supports Elemental fields"); 47 18 : } 48 : 49 : Real 50 384 : SecondTimeDerivativeAux::computeValue() 51 : { 52 384 : if (_use_qp_arg) 53 : { 54 384 : const Moose::ElemQpArg qp_arg = {_current_elem, _qp, _qrule, _q_point[_qp]}; 55 384 : return _factor(qp_arg, determineState()) * _v[_qp]; 56 : } 57 : else 58 : { 59 0 : const auto elem_arg = makeElemArg(_current_elem); 60 0 : return _factor(elem_arg, determineState()) * _v[_qp]; 61 : } 62 : }