ZalesakDiskScalarVel.H

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#ifndef ZalesakDiskScalarVel_H
#define ZalesakDiskScalarVel_H
 
#include "amr-wind/core/Physics.H"
#include "amr-wind/core/Field.H"
#include "AMReX_REAL.H"
 
using namespace amrex::literals;

namespace amr_wind::zds {
 
namespace {
struct SCexact
{
    AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real operator()(
        amrex::Real /*xc*/,
        amrex::Real /*yc*/,
        amrex::Real /*zc*/,
        amrex::Real /*x*/,
        amrex::Real /*y*/,
        amrex::Real /*z*/,
        amrex::Real /*radius*/,
        amrex::Real /*alpha*/) const;
    const int m_comp{0};
};
} // namespace
 
class ZalesakDiskScalarVel : public Physics::Register<ZalesakDiskScalarVel>
{
 
    static_assert(
        AMREX_SPACEDIM == 3,
        "ZalesakDiskScalarVel requires 3 dimensional mesh");
 
public:
    static std::string identifier() { return "ZalesakDiskScalarVel"; }
 
    explicit ZalesakDiskScalarVel(CFDSim& sim);
 
    ~ZalesakDiskScalarVel() override = default;

 
    void initialize_fields(int level, const amrex::Geometry& geom) override;
 
    void post_init_actions() override {}
 
    void post_regrid_actions() override {}
 
    void pre_advance_work() override;
 
    void post_advance_work() override;
 
    template <typename T>
    amrex::Real compute_error(const Field& /*field*/);
 
private:
    const CFDSim& m_sim;
 
    Field& m_velocity;
    Field& m_levelset;
    Field& m_density;

    amrex::Vector<amrex::Real> m_loc{0.5_rt, 0.72_rt, 0.24_rt};

    amrex::Real m_radius{0.16_rt};

    amrex::Real m_halfwidth{0.04_rt};

    amrex::Real m_depth{0.2_rt};

    amrex::Real m_TT{6.0_rt};
 
    void output_error();

    const int m_w{18};

    std::string m_output_fname{"zds.log"};
};
 
} // namespace amr_wind::zds
 
#endif /* ZalesakDiskScalarVel_H */