PolytropicPhysics.H

Go to the documentation of this file.

#ifdef CH_LANG_CC
/*
*      _______              __
*     / ___/ /  ___  __ _  / /  ___
*    / /__/ _ \/ _ \/  V \/ _ \/ _ \
*    \___/_//_/\___/_/_/_/_.__/\___/
*    Please refer to Copyright.txt, in Chombo's root directory.
*/
#endif

#ifndef _POLYTROPICPHYSICS_H_
#define _POLYTROPICPHYSICS_H_

#include <string>
using std::string;

#include "Box.H"
#include "IntVectSet.H"
#include "Vector.H"
#include "CH_HDF5.H"

#include "GodunovPhysics.H"

#include "UsingNamespace.H"


class PolytropicPhysics: public GodunovPhysics
{
public:

  PolytropicPhysics(const Real& a_smallPressure);


  ~PolytropicPhysics();


  Real getMaxWaveSpeed(const FArrayBox& a_U,
                       const Box&       a_box);


  virtual GodunovPhysics* new_godunovPhysics() const;


  int numConserved();


  Vector<string> stateNames();


  int numFluxes();


  void getFlux(FArrayBox&       a_flux,
               const FArrayBox& a_whalf,
               const int&       a_dir,
               const Box&       a_box);


  int numPrimitives();


  void charAnalysis(FArrayBox&       a_dW,
                    const FArrayBox& a_W,
                    const int&       a_dir,
                    const Box&       a_box);


  void charSynthesis(FArrayBox&       a_dW,
                     const FArrayBox& a_W,
                     const int&       a_dir,
                     const Box&       a_box);


  void charValues(FArrayBox&       a_lambda,
                  const FArrayBox& a_W,
                  const int&       a_dir,
                  const Box&       a_box);


  void incrementSource(FArrayBox&       a_S,
                       const FArrayBox& a_W,
                       const Box&       a_box);


  void riemann(FArrayBox&       a_WStar,
               const FArrayBox& a_WLeft,
               const FArrayBox& a_WRight,
               const FArrayBox& a_W,
               const Real&      a_time,
               const int&       a_dir,
               const Box&       a_box);


  virtual void postNormalPred(FArrayBox&       a_dWMinus,
                              FArrayBox&       a_dWPlus,
                              const FArrayBox& a_W,
                              const Real&      a_dt,
                              const Real&      a_dx,
                              const int&       a_dir,
                              const Box&       a_box);


  void quasilinearUpdate(FArrayBox&       a_dWdx,
                         const FArrayBox& a_WHalf,
                         const FArrayBox& a_W,
                         const Real&      a_scale,
                         const int&       a_dir,
                         const Box&       a_box);


  void consToPrim(FArrayBox&       a_W,
                  const FArrayBox& a_U,
                  const Box&       a_box);


  virtual Interval velocityInterval();


  virtual int pressureIndex();


  virtual Real smallPressure();


  virtual int bulkModulusIndex();

#ifdef CH_USE_HDF5
  virtual void expressions(HDF5HeaderData& a_holder) const;
#endif

protected:
  // Used to limit the absolute value of a "pressure" difference (away from zero)
  Real m_smallPressure;


private:
  // Disallowed for all the usual reasons
  void operator=(const PolytropicPhysics& a_input)
  {
    MayDay::Error("invalid operator");
  }

  // Disallowed for all the usual reasons
  PolytropicPhysics(const PolytropicPhysics& a_input)
  {
    MayDay::Error("invalid operator");
  }
};

#endif

---