initial_lithostatic_pressure.h

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/*
  Copyright (C) 2011 - 2023 by the authors of the ASPECT code.

  This file is part of ASPECT.

  ASPECT 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 2, or (at your option)
  any later version.

  ASPECT 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 ASPECT; see the file LICENSE.  If not see
  <http://www.gnu.org/licenses/>.
*/


#ifndef _aspect_boundary_traction_initial_lithospheric_pressure_h
#define _aspect_boundary_traction_initial_lithospheric_pressure_h

#include <aspect/boundary_traction/interface.h>
#include <aspect/simulator_access.h>


namespace aspect
{
  namespace BoundaryTraction
  {
    using namespace dealii;

    template <int dim>
    class InitialLithostaticPressure : public Interface<dim>, public SimulatorAccess<dim>
    {
      public:

        void initialize () override;


        Tensor<1,dim>
        boundary_traction (const types::boundary_id boundary_indicator,
                           const Point<dim> &position,
                           const Tensor<1,dim> &normal_vector) const override;


        static
        void
        declare_parameters (ParameterHandler &prm);


        void
        parse_parameters (ParameterHandler &prm) override;

      private:

        unsigned int n_points;

        double delta_z;

        /*
         * The user-specified point where to calculate the pressure profile.
         * The vertical coordinate/radius is ignored.
         */
        Point<dim> representative_point;

        std::vector<double> pressure;

        double interpolate_pressure (const Point<dim> &p) const;

        types::boundary_id bottom_boundary_id;

        bool prescribe_constant_pressure_at_bottom_boundary;
    };
  }
}


#endif