General initialization/termination functions. More...

#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <time.h>
#include "cstream.h"
#include "parameters.h"
#include "proto.h"
#include "species.h"

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Go to the source code of this file.

Macros
#define	ALLOC_PARAMS

Functions
void	init_parameters (void)
	Initializes the parameters.

static void	init_gridsizes_a (void)
	Initializes the grid sizes. The parameters dr_root and dz_root specify the grid size at level 0 (dz_root = dz[0], dr_root[0] = dr[0])

static void	init_wk_a (void)
	Initializes the vector of wk's for the Helmholtz equation.

static void	free_gridsizes (void)
	Frees the space allocated for dr and dz.

static void	free_wk (void)
	Frees the allocated space for $\lambda$ .

void	cstream_init (void)
	Here all the initialization calls.

void	cstream_end (void)
	Here all the cleaning and finishing calls.

void	cstream_set_field_at_time (double t)
	When we use a time-varying external field, we update the field components at each timesteps.

double	e0_r (double r, double z, double theta)
	Functions for a constant external electric field given in (x, y, z) components.

double	e0_z (double r, double z, double theta)
	Functions for a constant external electric field given in (x, y, z) components.

double	e0_theta (double r, double z, double theta)
	Functions for a constant external electric field given in (x, y, z) components.

	decl_field_comp (r)

	decl_field_comp (z)

	decl_field_comp (theta)

Variables
double	E_x

double	E_y

double	E_z

double	pois_inhom_fixed_q_t

double *	dr

double *	dz

double	dtheta

double *	dr_start

double *	dz_start

double *	w2k

double *	wk

char *	invok_name = "cstream"

const double	twopi = 6.283185307179586477L

const double	invfourpi = 0.079577471545947667884441882L

const double	invpi32 = 0.179587122125166561689081L

int	n

int	i

Detailed Description

General initialization/termination functions.

Definition in file cstream.c.

Macro Definition Documentation

#define ALLOC_PARAMS

Definition at line 9 of file cstream.c.

Function Documentation

void init_parameters ( void )

Initializes the parameters.

The global parameters will get their default values. These values correspond with the values in input/defaults.cfg

Definition at line 54 of file cstream.c.

static void init_gridsizes_a ( void )

static

Initializes the grid sizes. The parameters dr_root and dz_root specify the grid size at level 0 (dz_root = dz[0], dr_root[0] = dr[0])

Definition at line 276 of file cstream.c.

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static void init_wk_a ( void )

static

Initializes the vector of wk's for the Helmholtz equation.

Definition at line 310 of file cstream.c.

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static void free_gridsizes ( void )

static

Frees the space allocated for dr and dz.

Definition at line 348 of file cstream.c.

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static void free_wk ( void )

static

Frees the allocated space for $\lambda$ .

Definition at line 356 of file cstream.c.

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void cstream_init ( void )

Here all the initialization calls.

Definition at line 364 of file cstream.c.

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void cstream_end ( void )

Here all the cleaning and finishing calls.

Definition at line 388 of file cstream.c.

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void cstream_set_field_at_time ( double t )

When we use a time-varying external field, we update the field components at each timesteps.

Definition at line 400 of file cstream.c.

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double e0_r	(	double	r,
		double	z,
		double	theta
	)

Functions for a constant external electric field given in (x, y, z) components.

Definition at line 435 of file cstream.c.

double e0_z	(	double	r,
		double	z,
		double	theta
	)

Functions for a constant external electric field given in (x, y, z) components.

Definition at line 442 of file cstream.c.

double e0_theta	(	double	r,
		double	z,
		double	theta
	)

Functions for a constant external electric field given in (x, y, z) components.

Definition at line 449 of file cstream.c.

decl_field_comp ( r )

Initializes the component of the external electric field in $r$ -direction.

decl_field_comp ( z )

Initializes the component of the external electric field in $z$ -direction.

decl_field_comp ( theta )

Initializes the component of the external electric field in $\theta$ -direction.

Variable Documentation

double E_x

Definition at line 16 of file cstream.c.

double E_y

Definition at line 16 of file cstream.c.

double E_z

For time-dependent electric fields E_x, E_y, E_z there is a difference between E0 (the highest field) and E (the field at a given time).

Definition at line 16 of file cstream.c.

double pois_inhom_fixed_q_t

The same is true for time-dependent fixed charges (useful to model the charging of a cloud in modeling sprites.

Time-dependent fixed charge for the inhomogeneous poisson code It is updated in cstream_set_field_at_time acording to the parameter rise_time.

Definition at line 55 of file poisson.c.

double* dr

Definition at line 24 of file cstream.c.

double * dz

Definition at line 24 of file cstream.c.

double dtheta

dr[i] and dz[i] represent the grid size at level i. Note that i can go from -extra_pois_levels...max_levels.

Definition at line 24 of file cstream.c.

double* dr_start

Definition at line 27 of file cstream.c.

double * dz_start

Definition at line 27 of file cstream.c.

double* w2k

Definition at line 29 of file cstream.c.

double * wk

w2k[k] = 2 / dtheta^2 (1 - cos(k dtheta)). This numbers appear due to the finite-differences derivatives of a Fourier transform. If we would make a continuous fourier transform, they will approach k^2.

Definition at line 29 of file cstream.c.

char* invok_name = "cstream"

Name of this program.

Definition at line 36 of file cstream.c.

const double twopi = 6.283185307179586477L

$2 \times \pi$ .

Definition at line 39 of file cstream.c.

const double invfourpi = 0.079577471545947667884441882L

$1 / (4 \pi )$

Definition at line 42 of file cstream.c.

const double invpi32 = 0.179587122125166561689081L

$1 / (\pi ^ {3/2} )$

Definition at line 45 of file cstream.c.

int n

Definition at line 271 of file cstream.c.

int i

Definition at line 271 of file cstream.c.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation