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 "SLKKSMultiPhaseConcentration.h"
      11             : 
      12             : registerMooseObject("PhaseFieldApp", SLKKSMultiPhaseConcentration);
      13             : 
      14             : InputParameters
      15          28 : SLKKSMultiPhaseConcentration::validParams()
      16             : {
      17          28 :   auto params = SLKKSMultiPhaseBase::validParams();
      18          28 :   params.addClassDescription(
      19             :       "SLKKS multi-phase model kernel to enforce $c_i = \\sum_j h_j\\sum_k a_{jk} c_{ijk}$. "
      20             :       "The non-linear variable of this kernel is a phase's sublattice concentration");
      21          56 :   params.addRequiredCoupledVar("c", "Physical concentration");
      22          28 :   return params;
      23           0 : }
      24             : 
      25             : // Phase interpolation func
      26          15 : SLKKSMultiPhaseConcentration::SLKKSMultiPhaseConcentration(const InputParameters & parameters)
      27          15 :   : SLKKSMultiPhaseBase(parameters), _l(-1), _prop_h(_nh), _prop_dhdeta(_nh)
      28             : {
      29             :   // Fetch switching functions and their derivatives
      30          45 :   for (std::size_t i = 0; i < _nh; ++i)
      31             :   {
      32          30 :     _prop_h[i] = &getMaterialPropertyByName<Real>(_h_names[i]);
      33          30 :     _prop_dhdeta[i].resize(_neta);
      34             : 
      35             :     // Get derivatives of switching functions w.r.t. order parameters
      36          90 :     for (std::size_t j = 0; j < _neta; ++j)
      37          60 :       _prop_dhdeta[i][j] = &getMaterialPropertyDerivativeByName<Real>(_h_names[i], _eta_names[j]);
      38             :   }
      39             : 
      40             :   // Determine position of the nonlinear variable
      41          75 :   for (std::size_t i = 0; i < _ncs; ++i)
      42          60 :     if (coupled("cs", i) == _var.number())
      43          15 :       _l = i;
      44             : 
      45             :   // Check to make sure the nonlinear variable is in the cs list
      46          15 :   if (_l < 0)
      47           0 :     paramError("cs", "One of the listed variables must be the kernel variable");
      48          15 : }
      49             : 
      50             : Real
      51       35160 : SLKKSMultiPhaseConcentration::precomputeQpResidual()
      52             : {
      53             :   // sum over phases
      54             :   std::size_t k = 0;
      55             :   Real sum = 0.0;
      56      105480 :   for (std::size_t i = 0; i < _nh; ++i)
      57             :   {
      58             :     // sum sublattice concentrations
      59             :     Real csum = 0.0;
      60      210960 :     for (unsigned int j = 0; j < _ns[i]; ++j)
      61             :     {
      62      140640 :       csum += (*_cs[k])[_qp] * _a_cs[k];
      63      140640 :       k++;
      64             :     }
      65       70320 :     sum += (*_prop_h[i])[_qp] * csum;
      66             :   }
      67       35160 :   return sum - _c[_qp];
      68             : }
      69             : 
      70             : Real
      71       58200 : SLKKSMultiPhaseConcentration::precomputeQpJacobian()
      72             : {
      73       58200 :   return (*_prop_h[_phase[_l]])[_qp] * _phi[_j][_qp] * _a_cs[_l];
      74             : }
      75             : 
      76             : Real
      77      698400 : SLKKSMultiPhaseConcentration::computeQpOffDiagJacobian(unsigned int jvar)
      78             : {
      79      698400 :   if (jvar == _c_var)
      80      116400 :     return -_test[_i][_qp] * _phi[_j][_qp];
      81             : 
      82      582000 :   auto csvar = mapJvarToCvar(jvar, _cs_map);
      83      582000 :   if (csvar >= 0)
      84      349200 :     return _test[_i][_qp] * (*_prop_h[_phase[csvar]])[_qp] * _phi[_j][_qp] * _a_cs[csvar];
      85             : 
      86      232800 :   auto etavar = mapJvarToCvar(jvar, _eta_map);
      87      232800 :   if (etavar >= 0)
      88             :   {
      89             :     Real sum = 0.0;
      90     1164000 :     for (unsigned int i = 0; i < _ncs; ++i)
      91      931200 :       sum += (*_prop_dhdeta[_phase[i]][etavar])[_qp] * (*_cs[i])[_qp] * _a_cs[i];
      92             : 
      93      232800 :     return _test[_i][_qp] * sum * _phi[_j][_qp];
      94             :   }
      95             : 
      96             :   return 0.0;
      97             : }