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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2014 by The University of Queensland //
// Centre for Geoscience Computing //
// http://earth.uq.edu.au/centre-geoscience-computing //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.opensource.org/licenses/osl-3.0.php //
// //
/////////////////////////////////////////////////////////////
#ifndef __ROT_DAMPING_H
#define __ROT_DAMPING_H
// -- project includes --
#include "Model/DampingIGP.h"
#include "Foundation/vec3.h"
#include "Foundation/quintuple.h"
using esys::lsm::quintuple;
/*!
\brief Damping of the rotational part of the particle motion by an artificial
viscosity
*/
template <class T>
class CRotDamping
{
protected:
T *m_p; //!< the particle
Vec3 m_vref; //!< reference velocity
double m_visc; //!< artificial viscosity
double m_dt; //!< time step
int m_maxiter; //!< iteration limit
double m_E_diss; //!< dissipaed energy
Vec3 m_force; //!< current force
static double s_limit2; //!< square error limit for iteration
static int s_flops;
public:
typedef CDampingIGP ParameterType;
typedef double (CRotDamping::* ScalarFieldFunction)() const;
typedef pair<bool,double> (CRotDamping::* CheckedScalarFieldFunction)() const;
typedef Vec3 (CRotDamping::* VectorFieldFunction)() const;
static ScalarFieldFunction getScalarFieldFunction(const string&);
static CheckedScalarFieldFunction getCheckedScalarFieldFunction(const string&);
static VectorFieldFunction getVectorFieldFunction(const string&);
CRotDamping(T*,CDampingIGP*);
virtual ~CRotDamping();
inline void setLimit(double limit){s_limit2=limit*limit;};
virtual void calcForces();
void setTimeStepSize(double dt);
virtual bool hasTag(int,int) const;
virtual Vec3 getPosFirst() const {return m_p->getPos();};
virtual Vec3 getPosSecond() const {return Vec3(0.0,0.0,0.0);};
virtual Vec3 getPos() const {return m_p->getPos();};
vector<int> getAllID() const;
quintuple<Vec3,double,Vec3,double,Vec3> getRaw2Data() const
{
return
quintuple<Vec3,double,Vec3,double,Vec3>(
m_p->getPos(),
m_p->getRad(),
Vec3::ZERO,
0,
getPos()
);
}
static void zeroFlops(){s_flops=0;};
static int Flops(){return s_flops;};
double getDissipatedEnergy() const;
Vec3 getForce() const;
};
#include "Model/RotDamping.hpp"
#endif //__ROT_DAMPING_H
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