Line data    Source code

       1             : //* This file is part of SALAMANDER: Software for Advanced Large-scale Analysis of MAgnetic confinement for Numerical Design, Engineering & Research,
       2             : //* A multiphysics application for modeling plasma facing components
       3             : //* https://github.com/idaholab/salamander
       4             : //* https://mooseframework.inl.gov/salamander
       5             : //*
       6             : //* SALAMANDER is powered by the MOOSE Framework
       7             : //* https://www.mooseframework.inl.gov
       8             : //*
       9             : //* Licensed under LGPL 2.1, please see LICENSE for details
      10             : //* https://www.gnu.org/licenses/lgpl-2.1.html
      11             : //*
      12             : //* Copyright 2025, Battelle Energy Alliance, LLC
      13             : //* ALL RIGHTS RESERVED
      14             : //*
      15             : #include "NegativeVariableGradientComponent.h"
      16             : 
      17             : registerMooseObject("SalamanderApp", NegativeVariableGradientComponent);
      18             : 
      19             : InputParameters
      20          96 : NegativeVariableGradientComponent::validParams()
      21             : {
      22          96 :   InputParameters params = AuxKernel::validParams();
      23          96 :   params.addClassDescription(
      24             :       "Returns the component of the gradient of a variable and applies a constant factor of -1.");
      25         192 :   params.addRequiredCoupledVar("gradient_variable", "The variable from which to take the gradient");
      26         192 :   params.addRequiredRangeCheckedParam<unsigned int>(
      27             :       "component", "component < 3", "The component of the gradient to access");
      28          96 :   return params;
      29           0 : }
      30             : 
      31          54 : NegativeVariableGradientComponent::NegativeVariableGradientComponent(
      32          54 :     const InputParameters & parameters)
      33             :   : AuxKernel(parameters),
      34          54 :     _grad_var(coupledGradient("gradient_variable")),
      35         162 :     _component(getParam<unsigned int>("component"))
      36             : {
      37          54 : }
      38             : 
      39             : Real
      40       14720 : NegativeVariableGradientComponent::computeValue()
      41             : {
      42       14720 :   return -_grad_var[_qp](_component);
      43             : }