eulerian_compressible_fluid_dynamics_inner.h

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/* -------------------------------------------------------------------------*
*                               SPHinXsys                                   *
* --------------------------------------------------------------------------*
* SPHinXsys (pronunciation: s'finksis) is an acronym from Smoothed Particle *
* Hydrodynamics for industrial compleX systems. It provides C++ APIs for    *
* physical accurate simulation and aims to model coupled industrial dynamic *
* systems including fluid, solid, multi-body dynamics and beyond with SPH   *
* (smoothed particle hydrodynamics), a meshless computational method using  *
* particle discretization.                                                  *
*                                                                           *
* SPHinXsys is partially funded by German Research Foundation               *
* (Deutsche Forschungsgemeinschaft) DFG HU1527/6-1, HU1527/10-1             *
* and HU1527/12-1.                                                          *
*                                                                           *
* Portions copyright (c) 2017-2020 Technical University of Munich and       *
* the authors' affiliations.                                                *
*                                                                           *
* Licensed under the Apache License, Version 2.0 (the "License"); you may   *
* not use this file except in compliance with the License. You may obtain a *
* copy of the License at http://www.apache.org/licenses/LICENSE-2.0.        *
*                                                                           *
* --------------------------------------------------------------------------*/
#pragma once

#include "fluid_dynamics_inner.h"

#include "all_particle_dynamics.h"
#include "base_kernel.h"
#include "external_force.h"
#include "riemann_solver.h"
#include "compressible_fluid.h"

namespace SPH
{
    namespace eulerian_compressible_fluid_dynamics
    {
        typedef DataDelegateSimple<EulerianFluidBody, CompressibleFluidParticles, CompressibleFluid> CompressibleFluidDataSimple;
        typedef DataDelegateInner<EulerianFluidBody, CompressibleFluidParticles, CompressibleFluid> CompressibleFluidDataInner;

        class CompressibleFlowTimeStepInitialization
            : public ParticleDynamicsSimple,
              public CompressibleFluidDataSimple
        {
        private:
            UniquePtrKeeper<Gravity> gravity_ptr_keeper_;

        public:
            explicit CompressibleFlowTimeStepInitialization(SPHBody &sph_body);
            CompressibleFlowTimeStepInitialization(SPHBody &sph_body, Gravity &gravity);
            virtual ~CompressibleFlowTimeStepInitialization(){};

        protected:
            StdLargeVec<Real> &rho_, &dE_dt_prior_;
            StdLargeVec<Vecd> &pos_, &vel_, &dmom_dt_prior_;
            Gravity *gravity_;
            virtual void setupDynamics(Real dt = 0.0) override;
            virtual void Update(size_t index_i, Real dt = 0.0) override;
        };

        class CompressibleFluidInitialCondition
            : public ParticleDynamicsSimple,
              public CompressibleFluidDataSimple
        {
        public:
            explicit CompressibleFluidInitialCondition(EulerianFluidBody &body);
            virtual ~CompressibleFluidInitialCondition(){};

        protected:
            StdLargeVec<Vecd> &pos_, &vel_, &mom_;
            StdLargeVec<Real> &rho_, &E_, &p_;
            Real gamma_;
        };

        class ViscousAccelerationInner
            : public InteractionDynamics,
              public CompressibleFluidDataInner
        {
        public:
            explicit ViscousAccelerationInner(BaseBodyRelationInner &inner_relation);
            virtual ~ViscousAccelerationInner(){};

        protected:
            Real mu_;
            Real smoothing_length_;
            StdLargeVec<Real> &Vol_, &rho_, &p_, &mass_, &dE_dt_prior_;
            StdLargeVec<Vecd> &vel_, &dmom_dt_prior_;

            virtual void Interaction(size_t index_i, Real dt = 0.0) override;
        };

        class AcousticTimeStepSize : public ParticleDynamicsReduce<Real, ReduceMax>, public CompressibleFluidDataSimple
        {
        public:
            explicit AcousticTimeStepSize(EulerianFluidBody &body);
            virtual ~AcousticTimeStepSize(){};

        protected:
            StdLargeVec<Real> &rho_, &p_;
            StdLargeVec<Vecd> &vel_;
            Real smoothing_length_;
            Real ReduceFunction(size_t index_i, Real dt = 0.0) override;
            Real OutputResult(Real reduced_value) override;
        };

        class BaseRelaxation : public ParticleDynamics1Level, public CompressibleFluidDataInner
        {
        public:
            explicit BaseRelaxation(BaseBodyRelationInner &inner_relation);
            virtual ~BaseRelaxation(){};

        protected:
            StdLargeVec<Real> &Vol_, &rho_, &p_, &drho_dt_, &E_, &dE_dt_, &dE_dt_prior_;
            StdLargeVec<Vecd> &vel_, &mom_, &dmom_dt_, &dmom_dt_prior_;
        };

        class BasePressureRelaxation : public BaseRelaxation
        {
        public:
            explicit BasePressureRelaxation(BaseBodyRelationInner &inner_relation);
            virtual ~BasePressureRelaxation(){};

        protected:
            virtual void Initialization(size_t index_i, Real dt = 0.0) override;
            virtual void Update(size_t index_i, Real dt = 0.0) override;
        };

        template <class RiemannSolverType>
        class BasePressureRelaxationInner : public BasePressureRelaxation
        {
        public:
            explicit BasePressureRelaxationInner(BaseBodyRelationInner &inner_relation);
            virtual ~BasePressureRelaxationInner(){};
            RiemannSolverType riemann_solver_;

        protected:
            virtual void Interaction(size_t index_i, Real dt = 0.0) override;
        };
        using PressureRelaxationHLLCRiemannInner = BasePressureRelaxationInner<HLLCRiemannSolver>;
        using PressureRelaxationHLLCWithLimiterRiemannInner = BasePressureRelaxationInner<HLLCWithLimiterRiemannSolver>;

        class BaseDensityAndEnergyRelaxation : public BaseRelaxation
        {
        public:
            explicit BaseDensityAndEnergyRelaxation(BaseBodyRelationInner &inner_relation);
            virtual ~BaseDensityAndEnergyRelaxation(){};

        protected:
            virtual void Initialization(size_t index_i, Real dt = 0.0) override{};
            virtual void Update(size_t index_i, Real dt = 0.0) override;
        };

        template <class RiemannSolverType>
        class BaseDensityAndEnergyRelaxationInner : public BaseDensityAndEnergyRelaxation
        {
        public:
            explicit BaseDensityAndEnergyRelaxationInner(BaseBodyRelationInner &inner_relation);
            virtual ~BaseDensityAndEnergyRelaxationInner(){};
            RiemannSolverType riemann_solver_;

        protected:
            virtual void Interaction(size_t index_i, Real dt = 0.0) override;
        };
        using DensityAndEnergyRelaxationHLLCRiemannInner = BaseDensityAndEnergyRelaxationInner<HLLCRiemannSolver>;
        using DensityAndEnergyRelaxationHLLCWithLimiterRiemannInner = BaseDensityAndEnergyRelaxationInner<HLLCWithLimiterRiemannSolver>;
    }
}