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ElectronDragPower.h
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Wed, Oct 2, 09:21
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Fri, Oct 4, 09:21 (2 d)
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rLAMMPS lammps
ElectronDragPower.h
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#ifndef ELECTRON_DRAG_POWER_H
#define ELECTRON_DRAG_POWER_H
#include <map>
#include <string>
using std::map;
using std::string;
#include "Material.h"
#include "ATC_TypeDefs.h"
namespace ATC {
/**
* @class ElectronDragPower
* @brief Base class for defining the lattice drag power from electrons
*/
class ElectronDragPower
{
public:
ElectronDragPower() {};
virtual ~ElectronDragPower() {};
/** computes drag power */
virtual bool electron_drag_power(const FIELD_MATS &fields,
const GRAD_FIELD_MATS &gradFields,
DENS_MAT & flux)
{
return false;
};
virtual void electron_drag_velocity_coefficient(const FIELD_MATS &fields,
DENS_MAT & dragCoef)
{
FIELD_MATS::const_iterator t_field = fields.find(TEMPERATURE);
dragCoef.reset((t_field->second).nRows(),1); // zero out matrix, resize if necessary
};
};
//-------------------------------------------------------------------
/**
* @class ElectronDragPowerLinear
* @brief Class for electron drag that linearly depends on the difference between the electron and lattice velocities
*/
class ElectronDragPowerLinear : public ElectronDragPower
{
public:
ElectronDragPowerLinear(fstream &matfile,
map<string,double> & parameters,
Material * material_);
virtual ~ElectronDragPowerLinear() {};
virtual bool electron_drag_power(const FIELD_MATS &fields,
const GRAD_FIELD_MATS &gradFields,
DENS_MAT & flux);
virtual void electron_drag_velocity_coefficient(const FIELD_MATS &fields,
DENS_MAT & dragCoef);
protected:
double electronDragInvTau_;
Material * material_;
// used to avoid unnecessary resizing
DENS_MAT dragCoefWorkspace_;
DENS_MAT invEffMassWorkspace_;
};
}
#endif
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