CreateHydroMechanicsProcess.cpp

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#include "CreateHydroMechanicsProcess.h"
 
#include <cassert>
#include <range/v3/range.hpp>
#include <string>
 
#include "HydroMechanicsProcess.h"
#include "HydroMechanicsProcessData.h"
#include "MaterialLib/MPL/CreateMaterialSpatialDistributionMap.h"
#include "MaterialLib/MPL/MaterialSpatialDistributionMap.h"
#include "MaterialLib/MPL/Medium.h"
#include "MaterialLib/MPL/Utils/CheckMPLPhasesForSinglePhaseFlow.h"
#include "MaterialLib/SolidModels/CreateConstitutiveRelation.h"
#include "MaterialLib/SolidModels/MechanicsBase.h"
#include "MeshLib/Utils/Is2DMeshOnRotatedVerticalPlane.h"
#include "ParameterLib/Utils.h"
#include "ProcessLib/Common/HydroMechanics/CreateInitialStress.h"
#include "ProcessLib/Output/CreateSecondaryVariables.h"
#include "ProcessLib/Utils/ProcessUtils.h"
 
namespace ProcessLib
{
namespace HydroMechanics
{
 
CouplingScheme parseCouplingScheme(
    std::optional<BaseLib::ConfigTree> const& config)
{
    if (!config)
    {
        return Monolithic{};
    }
 
    auto const coupling_scheme_type =
        config->getConfigParameter<std::string>("type");
 
    if (coupling_scheme_type == "monolithic")
    {
        return Monolithic{};
    }
 
    // Default value is 0.5, which is recommended by [Mikelic & Wheeler].
    double const fixed_stress_stabilization_parameter =
        config->getConfigParameter<double>(
            "fixed_stress_stabilization_parameter", 0.5);
 
    DBUG("Using value {:g} for coupling parameter of staggered scheme.",
         fixed_stress_stabilization_parameter);
 
    {  // Check parameter value. Optimum is not a-priori known, but within
       // certain interval [Storvik & Nordbotten]
        double const csp_min = 1.0 / 6.0;
        double const csp_max = 1.0;
        if (fixed_stress_stabilization_parameter < csp_min ||
            fixed_stress_stabilization_parameter > csp_max)
        {
            WARN(
                "Value of coupling scheme parameter = {:g} is out of "
                "reasonable range ({:g}, {:g}).",
                fixed_stress_stabilization_parameter, csp_min, csp_max);
        }
    }
 
    bool const fixed_stress_over_time_step =
        config->getConfigParameter<std::string>("fixed_stress_over_time_step",
                                                "false") == "true";
 
    return Staggered{fixed_stress_stabilization_parameter,
                     fixed_stress_over_time_step};
}
 
template <int DisplacementDim>
std::unique_ptr<Process> createHydroMechanicsProcess(
    std::string const& name, MeshLib::Mesh& mesh,
    std::unique_ptr<ProcessLib::AbstractJacobianAssembler>&& jacobian_assembler,
    std::vector<ProcessVariable> const& variables,
    std::vector<std::unique_ptr<ParameterLib::ParameterBase>> const& parameters,
    std::optional<ParameterLib::CoordinateSystem> const&
        local_coordinate_system,
    unsigned const integration_order, BaseLib::ConfigTree const& config,
    std::map<int, std::shared_ptr<MaterialPropertyLib::Medium>> const& media)
{
    config.checkConfigParameter("type", "HYDRO_MECHANICS");
    DBUG("Create HydroMechanicsProcess.");
 
    if (DisplacementDim == 2)
    {
        if (mesh.isAxiallySymmetric() &&
            MeshLib::is2DMeshOnRotatedVerticalPlane(mesh))
        {
            OGS_FATAL(
                "Mesh {:s} is on a plane rotated around the vertical axis. The "
                "axisymmetric problem can not use such mesh.",
                mesh.getName());
        }
    }
 
    auto const coupling_scheme = parseCouplingScheme(
        config.getConfigSubtreeOptional("coupling_scheme"));
 
 
    auto const pv_config = config.getConfigSubtree("process_variables");
 
    ProcessVariable* variable_p = nullptr;
    ProcessVariable* variable_u = nullptr;
    std::vector<std::vector<std::reference_wrapper<ProcessVariable>>>
        process_variables;
 
    int const hydraulic_process_id = 0;
    int mechanics_related_process_id = 0;
 
    if (std::holds_alternative<Monolithic>(coupling_scheme))
    {
        auto per_process_variables = findProcessVariables(
            variables, pv_config,
            {
             "pressure",
             "displacement"});
        variable_p = &per_process_variables[0].get();
        variable_u = &per_process_variables[1].get();
        process_variables.push_back(std::move(per_process_variables));
    }
 
    if (std::holds_alternative<Staggered>(coupling_scheme))
    {
        using namespace std::string_literals;
        for (auto const& variable_name : {"pressure"s, "displacement"s})
        {
            auto per_process_variables =
                findProcessVariables(variables, pv_config, {variable_name});
            process_variables.push_back(std::move(per_process_variables));
        }
        mechanics_related_process_id = 1;
        variable_p = &process_variables[hydraulic_process_id][0].get();
        variable_u = &process_variables[mechanics_related_process_id][0].get();
    }
 
    DBUG("Associate displacement with process variable '{:s}'.",
         variable_u->getName());
 
    if (variable_u->getNumberOfGlobalComponents() != DisplacementDim)
    {
        OGS_FATAL(
            "Number of components of the process variable '{:s}' is different "
            "from the displacement dimension: got {:d}, expected {:d}",
            variable_u->getName(),
            variable_u->getNumberOfGlobalComponents(),
            DisplacementDim);
    }
 
    DBUG("Associate pressure with process variable '{:s}'.",
         variable_p->getName());
    if (variable_p->getNumberOfGlobalComponents() != 1)
    {
        OGS_FATAL(
            "Pressure process variable '{:s}' is not a scalar variable but has "
            "{:d} components.",
            variable_p->getName(),
            variable_p->getNumberOfGlobalComponents());
    }
 
    auto solid_constitutive_relations =
        MaterialLib::Solids::createConstitutiveRelations<DisplacementDim>(
            parameters, local_coordinate_system, materialIDs(mesh), config);
 
    // Specific body force
    Eigen::Matrix<double, DisplacementDim, 1> specific_body_force;
    {
        std::vector<double> const b =
            config.getConfigParameter<std::vector<double>>(
                "specific_body_force");
        if (b.size() != DisplacementDim)
        {
            OGS_FATAL(
                "The size of the specific body force vector does not match the "
                "displacement dimension. Vector size is {:d}, displacement "
                "dimension is {:d}",
                b.size(), DisplacementDim);
        }
 
        std::copy_n(b.data(), b.size(), specific_body_force.data());
    }
 
    auto mass_lumping = config.getConfigParameter<bool>("mass_lumping", false);
 
    auto media_map =
        MaterialPropertyLib::createMaterialSpatialDistributionMap(media, mesh);
 
    std::array const requiredMediumProperties = {
        MaterialPropertyLib::reference_temperature,
        MaterialPropertyLib::permeability, MaterialPropertyLib::porosity,
        MaterialPropertyLib::biot_coefficient};
    std::array const requiredFluidProperties = {MaterialPropertyLib::viscosity,
                                                MaterialPropertyLib::density};
    std::array const requiredSolidProperties = {MaterialPropertyLib::density};
 
    MaterialPropertyLib::checkMPLPhasesForSinglePhaseFlow(mesh, media_map);
 
    // The uniqueness of phase has already been checked in
    // `checkMPLPhasesForSinglePhaseFlow`.
    MaterialPropertyLib::Variable const phase_variable =
        (*ranges::begin(media_map.media()))->hasPhase("Gas")
            ? MaterialPropertyLib::Variable::gas_phase_pressure
            : MaterialPropertyLib::Variable::liquid_phase_pressure;
    for (auto const& medium : media_map.media())
    {
        checkRequiredProperties(*medium, requiredMediumProperties);
        checkRequiredProperties(fluidPhase(*medium), requiredFluidProperties);
        checkRequiredProperties(medium->phase("Solid"),
                                requiredSolidProperties);
    }
    DBUG("Media properties verified.");
 
    // Initial stress conditions
    auto initial_stress = ProcessLib::createInitialStress<DisplacementDim>(
        config, parameters, mesh);
 
    const bool use_taylor_hood_elements = variable_p->getShapeFunctionOrder() !=
                                          variable_u->getShapeFunctionOrder();
 
    HydroMechanicsProcessData<DisplacementDim> process_data{
        materialIDs(mesh),
        std::move(media_map),
        std::move(solid_constitutive_relations),
        initial_stress,
        specific_body_force,
        mass_lumping,
        coupling_scheme,
        hydraulic_process_id,
        mechanics_related_process_id,
        use_taylor_hood_elements,
        phase_variable};
 
    SecondaryVariableCollection secondary_variables;
 
    ProcessLib::createSecondaryVariables(config, secondary_variables);
 
    return std::make_unique<HydroMechanicsProcess<DisplacementDim>>(
        std::move(name), mesh, std::move(jacobian_assembler), parameters,
        integration_order, std::move(process_variables),
        std::move(process_data), std::move(secondary_variables),
        std::holds_alternative<Monolithic>(coupling_scheme));
}
 
template std::unique_ptr<Process> createHydroMechanicsProcess<2>(
    std::string const& name,
    MeshLib::Mesh& mesh,
    std::unique_ptr<ProcessLib::AbstractJacobianAssembler>&& jacobian_assembler,
    std::vector<ProcessVariable> const& variables,
    std::vector<std::unique_ptr<ParameterLib::ParameterBase>> const& parameters,
    std::optional<ParameterLib::CoordinateSystem> const&
        local_coordinate_system,
    unsigned const integration_order,
    BaseLib::ConfigTree const& config,
    std::map<int, std::shared_ptr<MaterialPropertyLib::Medium>> const& media);
 
template std::unique_ptr<Process> createHydroMechanicsProcess<3>(
    std::string const& name,
    MeshLib::Mesh& mesh,
    std::unique_ptr<ProcessLib::AbstractJacobianAssembler>&& jacobian_assembler,
    std::vector<ProcessVariable> const& variables,
    std::vector<std::unique_ptr<ParameterLib::ParameterBase>> const& parameters,
    std::optional<ParameterLib::CoordinateSystem> const&
        local_coordinate_system,
    unsigned const integration_order,
    BaseLib::ConfigTree const& config,
    std::map<int, std::shared_ptr<MaterialPropertyLib::Medium>> const& media);
 
}  // namespace HydroMechanics
}  // namespace ProcessLib