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[WIP] Add compressible EOS option to visco plastic material model #6272

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[WIP] Add compressible EOS option to visco plastic material model #6272

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462f477
Add compressible EOS option to visco plastic
naliboff Apr 7, 2025
aa2b9fc
update input parameters
naliboff Jun 10, 2025
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19 changes: 18 additions & 1 deletion include/aspect/material_model/visco_plastic.h
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
#include <aspect/simulator_access.h>
#include <aspect/material_model/interface.h>
#include <aspect/material_model/equation_of_state/multicomponent_incompressible.h>
#include <aspect/material_model/equation_of_state/multicomponent_compressible.h>
#include <aspect/material_model/rheology/visco_plastic.h>

#include<deal.II/fe/component_mask.h>
Expand Down Expand Up @@ -263,7 +264,23 @@ namespace aspect
/**
* Object for computing the equation of state.
*/
EquationOfState::MulticomponentIncompressible<dim> equation_of_state;
EquationOfState::MulticomponentIncompressible<dim> equation_of_state_incompressible;

/**
* Object for computing the equation of state.
*/
EquationOfState::MulticomponentCompressible<dim> equation_of_state_compressible;

/**
* Enumeration for selecting which type of Equation of State
* model to use. Select between multicomponent incompressible
* or multicomponent incompressible.
*/
enum EquationOfStateScheme
{
multicomponent_incompressible,
multicomponent_compressible
} equation_of_state;

/**
* Object that handles phase transitions.
Expand Down
42 changes: 36 additions & 6 deletions source/material_model/visco_plastic.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ namespace aspect
else
{
EquationOfStateOutputs<dim> eos_outputs_all_phases (n_phases);
equation_of_state.evaluate(in, 0, eos_outputs_all_phases);
equation_of_state_incompressible.evaluate(in, 0, eos_outputs_all_phases);
reference_density = eos_outputs_all_phases.densities[0];
}

Expand Down Expand Up @@ -121,7 +121,7 @@ namespace aspect
for (unsigned int i=0; i < in.n_evaluation_points(); ++i)
{
// First compute the equation of state variables and thermodynamic properties
equation_of_state.evaluate(in, i, eos_outputs_all_phases);
equation_of_state_incompressible.evaluate(in, i, eos_outputs_all_phases);

const double gravity_norm = this->get_gravity_model().gravity_vector(in.position[i]).norm();
const double reference_density = (this->get_adiabatic_conditions().is_initialized())
Expand Down Expand Up @@ -316,7 +316,7 @@ namespace aspect
ViscoPlastic<dim>::
is_compressible () const
{
return equation_of_state.is_compressible();
return equation_of_state_incompressible.is_compressible();
}


Expand Down Expand Up @@ -350,6 +350,13 @@ namespace aspect

EquationOfState::MulticomponentIncompressible<dim>::declare_parameters (prm);

EquationOfState::MulticomponentCompressible<dim>::declare_parameters (prm);

prm.declare_entry ("Equation of state", "multicomponent incompressible",
Patterns::Selection("multicomponent incompressible|multicomponent compresssible"),
"Select the equation of state model to use between the options "
"multicomponent incompressible and multicomponent incompressible.");

Rheology::ViscoPlastic<dim>::declare_parameters(prm);

// Equation of state parameters
Expand Down Expand Up @@ -397,9 +404,32 @@ namespace aspect
n_phases = phase_function.n_phases_over_all_chemical_compositions();

// Equation of state parameters
equation_of_state.initialize_simulator (this->get_simulator());
equation_of_state.parse_parameters (prm,
std::make_unique<std::vector<unsigned int>>(n_phases_for_each_chemical_composition));
if (prm.get ("Equation of state") == "multicomponent incompressible")
equation_of_state = multicomponent_incompressible;
else if (prm.get ("Equation of state") == "multicomponent compressible")
equation_of_state = multicomponent_compressible;
else
AssertThrow(false, ExcMessage("Not a valid equation of state model"));

if (equation_of_state == multicomponent_incompressible)
{
equation_of_state_incompressible.initialize_simulator (this->get_simulator());
equation_of_state_incompressible.parse_parameters (prm,
std::make_unique<std::vector<unsigned int>>(n_phases_for_each_chemical_composition));
}
else
{
prm.enter_subsection ("Equation of State");
{
prm.enter_subsection ("Multicomponent Compressible");
{
equation_of_state_compressible.initialize_simulator (this->get_simulator());
equation_of_state_compressible.parse_parameters (prm);
}
prm.leave_subsection();
}
prm.leave_subsection();
}

// Make options file for parsing maps to double arrays
std::vector<std::string> chemical_field_names = this->introspection().chemical_composition_field_names();
Expand Down