SphericalMovement Class Reference

Accelerates and moves particles for 1D simulations. Extends the simplest non relativistic, electrostatic case to spherical geometry. This simple movement class uses the simple integration of the non relativistic Newtonian equations of motion with only an electric field. The motion is implemented in spherical geometry. Only 1D spherical geometry is implemented. The second velocity component is interpreted as . More...

#include <movement.h>

Inheritance diagram for SphericalMovement:

List of all members.

Public Member Functions
	SphericalMovement ()
	Default constructor.
virtual	~SphericalMovement ()
	Destructor.
virtual std::string	GetClassName () const
	Returns the name of the class, here "SphericalMovement".
virtual void	Init ()
	Initialization of the SphericalMovement.
virtual bool	Execute ()
	Accelerate and move all the particles of the Species. To accelerate the particles the electric field values at the particles positions have to be multiplied with and added to the velocity of the particle. This is best done by rescaling the whole field with that factor, then just adding the field values to the velocities and when that's done, scale the field back. This is faster as long as there are more than two particles in a grid cell. The particle positions are just updated by adding the velocities, since they are normalized in units of .
Public Member Functions inherited from Movement
	Movement ()
	Default constructor.
virtual	~Movement ()
	Destructor.
virtual grid< Velocity > *	GetCurrent ()
	Should return the current density but can't.
Species *	GetSpecies ()
	Returns the pointer to the owning Species object.
Public Member Functions inherited from Task
	Task ()
	Default constructor sets the running number nNr of the Task.
virtual	~Task ()
	When destructing a Task is has to be detatched from the parents Task list.
int	GetStep () const
	Return the interval between execution in timesteps.
int	GetEnd () const
	Return the timestep when the Task ends execution.
bool	DoNow ()
	Returns true if the Task is to be executed now.
std::string	GetName () const
	Returns the name given to the Task object.
virtual bool	IsInteractive () const
	If not specified otherwise, a Task is not interactive.
void	AttachTask (Task *pTask)
	Insert Task into Task list and registers it with the Process.
void	DetachTask (Task *pTask)
	DetachTask from Task list.
virtual std::string	Rebuild (std::istream &in)
	Rebuilds the task from the setup. This normally does not need to be overwritten. Rebuild always returns the next token that does not belong to the object setup.
virtual void	DumpTaskList (std::ostream &o, int nDepth=0)
	Recursively dumps the complete Task list into a stream.

Protected Member Functions
virtual PARAMETERMAP *	MakeParamMap (PARAMETERMAP *pm=NULL)
	Register the parameters needed for the Task. A derived class should overwrite this whenever it needs additional parameters from the setup file. It should then ALWAYS call the MakeParamMap of its superclass.

Protected Attributes
int	Rg
	The inner radius of the coordinate system, the dust particle radius.
double	dx
	The grid spacing.
Protected Attributes inherited from Movement
double	dt
	Time step. Copy from the Species.
Species *	pS
	Pointer to the owning Species.
ES_EField *	pE
	Pointer to the electric field.
Geometry *	pGeom
	Pointer to the geometry.
double	dttxE
	A variable containing in physical units.
double	q
	Super particle charge.
double	m
	Mass of the plasma species.
double	rg
	Gyration radius of electrons: , V perpendicular to Bz.
double	Bz
	Constant magnetic flux density in z-direction.
double	Te
	Electron temperature.
Protected Attributes inherited from Task
int	nNr
	The running number of this Task.
std::string	strName
	The name of this Task.
Task *	pParent
	The parent Task to which this Task belongs.
Process *	pProcess
	The Process to which this Task belongs.
std::string	strNorm
	The name of the referenced Normalization object.
Normalization *	Norm
	The pointer to the referenced Normalization object.
TASKLIST	plTasks
	A list of sub-Tasks.
int	nStart
int	nEnd
int	nStep

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Detailed Description

Accelerates and moves particles for 1D simulations. Extends the simplest non relativistic, electrostatic case to spherical geometry. This simple movement class uses the simple integration of the non relativistic Newtonian equations of motion with only an electric field. The motion is implemented in spherical geometry. Only 1D spherical geometry is implemented. The second velocity component is interpreted as .

Parameters:

E	Name of the referenced electric field
geometry	Name of the referenced Geometry

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The documentation for this class was generated from the following files:

• movement.h
• movement.cpp