ConstantYieldStress.cc

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// Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2023, 2025 Constantine Khroulev
//
// This file is part of PISM.
//
// PISM is free software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the Free Software
// Foundation; either version 3 of the License, or (at your option) any later
// version.
//
// PISM is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
// details.
//
// You should have received a copy of the GNU General Public License
// along with PISM; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
#include "pism/basalstrength/ConstantYieldStress.hh"
 
#include "pism/util/Config.hh"
#include "pism/util/Grid.hh"
#include "pism/util/MaxTimestep.hh"
#include "pism/util/io/IO_Flags.hh"
 
namespace pism {
 
ConstantYieldStress::ConstantYieldStress(std::shared_ptr<const Grid> grid)
  : YieldStress(grid) {
 
  m_name = "constant yield stress model";
}
 
void ConstantYieldStress::restart_impl(const File &input_file, int record) {
  m_basal_yield_stress.read(input_file, record);
 
  regrid(name(), m_basal_yield_stress);
}
 
void ConstantYieldStress::bootstrap_impl(const File &input_file,
                                         const YieldStressInputs &inputs) {
  (void) inputs;
 
  double tauc = m_config->get_number("basal_yield_stress.constant.value");
  m_basal_yield_stress.regrid(input_file, io::Default(tauc));
 
  regrid(name(), m_basal_yield_stress);
}
 
void ConstantYieldStress::init_impl(const YieldStressInputs &inputs) {
  (void) inputs;
 
  double tauc = m_config->get_number("basal_yield_stress.constant.value");
  // Set the constant value.
  m_basal_yield_stress.set(tauc);
 
  regrid(name(), m_basal_yield_stress);
}
 
MaxTimestep ConstantYieldStress::max_timestep_impl(double t) const {
  (void) t;
  return MaxTimestep(name());
}
 
void ConstantYieldStress::update_impl(const YieldStressInputs &inputs,
                                      double t, double dt) {
  (void) inputs;
  (void) t;
  (void) dt;
  // empty
}
 
} // end of namespace pism