Hydro.H

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#ifndef INTEGRATOR_HYDRO_H
#define INTEGRATOR_HYDRO_H
 
#include "Integrator/Integrator.H"
#include "IO/ParmParse.H"
 
#include "BC/BC.H"
#include "BC/Constant.H"
#include "BC/Nothing.H"
#include "IC/IC.H"
 
#include "Set/Base.H"
#include "Solver/Local/Riemann/Roe.H"
 
#if AMREX_SPACEDIM==2
 
namespace Integrator
{
class Hydro : virtual public Integrator
{
public:
    static constexpr const char* name = "hydro";
 
    Hydro() {};
    Hydro(IO::ParmParse& pp);
    static void Parse(Hydro& value, IO::ParmParse& pp);
    virtual ~Hydro()
    {
        delete density_bc;
        delete momentum_bc;
        delete energy_bc;
        delete eta_bc;
 
        delete density_ic;
        delete velocity_ic;
        delete pressure_ic;
 
        delete ic_m0;
        delete ic_u0;
        delete ic_q;
 
        delete eta_ic;
        delete etadot_ic;
 
        delete solid.momentum_ic;
        delete solid.density_ic;
        delete solid.energy_ic;
 
        delete riemannsolver;
    }
 
protected:
    void Initialize(int lev) override;
    void Mix(int lev);
    void TimeStepBegin(Set::Scalar a_time, int a_iter) override;
    void TimeStepComplete(Set::Scalar time, int lev) override;
    void Advance(int lev, Set::Scalar time, Set::Scalar dt) override;
    void TagCellsForRefinement(int lev, amrex::TagBoxArray& tags, amrex::Real /*time*/, int /*ngrow*/) override;
    void Regrid(int lev, Set::Scalar time) override;
 
    virtual void UpdateEta(int lev, Set::Scalar time);
private:
    
    void RHS(   int lev, Set::Scalar time, 
                amrex::MultiFab &rho_rhs_mf, 
                amrex::MultiFab &M_rhs_mf, 
                amrex::MultiFab &E_rhs_mf,
                const amrex::MultiFab &rho_mf,
                const amrex::MultiFab &M_mf,
                const amrex::MultiFab &E_mf);
 
    Set::Field<Set::Scalar> density_mf;
    Set::Field<Set::Scalar> density_old_mf;
 
    Set::Field<Set::Scalar> energy_mf;
    Set::Field<Set::Scalar> energy_old_mf;
 
    Set::Field<Set::Scalar> momentum_mf;
    Set::Field<Set::Scalar> momentum_old_mf;
 
    Set::Field<Set::Scalar> velocity_mf;
    Set::Field<Set::Scalar> pressure_mf;
 
    struct {
        Set::Field<Set::Scalar> density_mf;
        Set::Field<Set::Scalar> momentum_mf;
        Set::Field<Set::Scalar> energy_mf;
        IC::IC<Set::Scalar>* density_ic   = nullptr;
        IC::IC<Set::Scalar>* momentum_ic  = nullptr;
        IC::IC<Set::Scalar>* energy_ic    = nullptr;
    } solid;
 
protected:
    Set::Field<Set::Scalar> eta_mf;
    Set::Field<Set::Scalar> eta_old_mf;
private:
    Set::Field<Set::Scalar> etadot_mf;
 
    Set::Field<Set::Scalar> vorticity_mf;
 
    Set::Field<Set::Scalar> m0_mf;
    Set::Field<Set::Scalar> u0_mf;
    Set::Field<Set::Scalar> q_mf;
    Set::Field<Set::Scalar> Source_mf;
    Set::Field<Set::Scalar> flux_mf;
 
    BC::BC<Set::Scalar>* density_bc = nullptr;
    BC::BC<Set::Scalar>* momentum_bc = nullptr;
    BC::BC<Set::Scalar>* energy_bc = nullptr;
    BC::BC<Set::Scalar>* eta_bc = nullptr;
 
    IC::IC<Set::Scalar>* velocity_ic = nullptr;
    IC::IC<Set::Scalar>* pressure_ic = nullptr;
    IC::IC<Set::Scalar>* density_ic  = nullptr;
 
    IC::IC<Set::Scalar>* ic_m0 = nullptr;
    IC::IC<Set::Scalar>* ic_u0 = nullptr;
    IC::IC<Set::Scalar>* ic_q = nullptr;
 
    IC::IC<Set::Scalar>* eta_ic = nullptr;
    IC::IC<Set::Scalar>* etadot_ic = nullptr;
 
    BC::Nothing bc_nothing;
 
    BC::Constant neumann_bc_1 = BC::Constant::ZeroNeumann(1);
    BC::Constant neumann_bc_D = BC::Constant::ZeroNeumann(AMREX_SPACEDIM);
 
    Set::Scalar c_max = 0.0;
    Set::Scalar vx_max = 0.0;
    Set::Scalar vy_max = 0.0;
 
    Set::Scalar eta_refinement_criterion=NAN, omega_refinement_criterion=NAN, gradu_refinement_criterion=NAN, p_refinement_criterion=NAN, rho_refinement_criterion;
    Set::Scalar gamma=NAN, cfl=NAN, cfl_v=NAN, mu=NAN,  pref=NAN;
 
    Set::Scalar small=NAN;
    Set::Scalar cutoff=NAN;
    Set::Scalar lagrange=NAN;
 
    Solver::Local::Riemann::Riemann *riemannsolver = nullptr;
 
    enum IntegrationScheme {
        ForwardEuler, SSPRK3, RK4
    };
    IntegrationScheme scheme;
 
};
}
 
#endif
#endif