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 "ADPhaseFieldTwoPhaseSurfaceTension.h"
      11             : 
      12             : registerMooseObject("PhaseFieldApp", ADPhaseFieldTwoPhaseSurfaceTension);
      13             : 
      14             : InputParameters
      15           0 : ADPhaseFieldTwoPhaseSurfaceTension::validParams()
      16             : {
      17           0 :   InputParameters params = ADKernelValue::validParams();
      18           0 :   params.addClassDescription("Phase field surface tension force for the Navier-Stokes equations.");
      19           0 :   params.addRequiredCoupledVar("auxpf", "Auxillary variable in phase field formulation");
      20           0 :   params.addRequiredCoupledVar("pf", "phase field variable");
      21           0 :   params.addRequiredParam<Real>("coeff", "prefactor relating chemical potential and psi");
      22           0 :   return params;
      23           0 : }
      24             : 
      25           0 : ADPhaseFieldTwoPhaseSurfaceTension::ADPhaseFieldTwoPhaseSurfaceTension(
      26           0 :     const InputParameters & parameters)
      27             :   : ADVectorKernelValue(parameters),
      28           0 :     _auxpf(adCoupledValue("auxpf")),
      29           0 :     _grad_pf(adCoupledGradient("pf")),
      30           0 :     _coeff(getParam<Real>("coeff"))
      31             : {
      32           0 : }
      33             : 
      34             : ADRealVectorValue
      35           0 : ADPhaseFieldTwoPhaseSurfaceTension::precomputeQpResidual()
      36             : {
      37           0 :   return -_coeff * _auxpf[_qp] * _grad_pf[_qp];
      38             : }