LevelSetAdvection.C

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//* This file is part of the MOOSE framework
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//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
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//* Licensed under LGPL 2.1, please see LICENSE for details
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#include "LevelSetAdvection.h"
 
registerMooseObject("LevelSetApp", LevelSetAdvection);
 
InputParameters
LevelSetAdvection::validParams()
{
  InputParameters params = ADKernelValue::validParams();
  params.addClassDescription("Implements the level set advection equation: $\\vec{v}\\cdot\\nabla "
                             "u = 0$, where the weak form is $(\\psi_i, \\vec{v}\\cdot\\nabla u) = "
                             "0$.");
  params.addRequiredCoupledVar("velocity", "Velocity vector variable.");
  return params;
}
 
LevelSetAdvection::LevelSetAdvection(const InputParameters & parameters)
  : ADKernelValue(parameters), _velocity(adCoupledVectorValue("velocity"))
{
}
 
ADReal
LevelSetAdvection::precomputeQpResidual()
{
  return _velocity[_qp] * _grad_u[_qp];
}