depth_dependent.h

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// ------------------------------------------------------
//
// SPDX-License-Identifier: GPL-2.0-or-later
//
// SPDX-FileCopyrightText: Copyright (C) 2014-2026 by the ASPECT authors.
//
// This file is part of ASPECT.
//
// Detailed license information governing the source code and
// contributions can be found in the folder LICENSES and in
// LICENSE and CONTRIBUTING.md at the top level directory.
//
// ------------------------------------------------------

#ifndef _aspect_material_model_depth_dependent_h
#define _aspect_material_model_depth_dependent_h

#include <aspect/material_model/interface.h>
#include <aspect/simulator_access.h>
#include <aspect/material_model/rheology/ascii_depth_profile.h>

#include <deal.II/base/function_lib.h>
#include <deal.II/base/parsed_function.h>

namespace aspect
{
  namespace MaterialModel
  {
    template <int dim>
    class DepthDependent : public MaterialModel::Interface<dim>, public ::aspect::SimulatorAccess<dim>
    {
      public:
        void initialize() override;

        void update() override;

        bool is_compressible () const override;

        void
        evaluate (const typename Interface<dim>::MaterialModelInputs &in,
                  typename Interface<dim>::MaterialModelOutputs &out) const override;
        static void
        declare_parameters (ParameterHandler &prm);

        void
        parse_parameters (ParameterHandler &prm) override;

        void
        create_additional_named_outputs (MaterialModel::MaterialModelOutputs<dim> &out) const override;

      private:
        enum ViscositySource
        {
          function,
          file,
          list,
          none
        };

        double reference_viscosity;

        ViscositySource viscosity_source;

        std::unique_ptr<Functions::InterpolatedTensorProductGridData<1>> viscosity_file_function;

        double
        calculate_depth_dependent_prefactor(const double &depth) const;

        std::vector<double> depth_values;
        std::vector<double> viscosity_values;

        Functions::ParsedFunction<1> viscosity_function;

        std::unique_ptr<MaterialModel::Interface<dim>> base_model;

        std::unique_ptr<Rheology::AsciiDepthProfile<dim>> depth_dependent_rheology;
    };
  }
}

#endif