prob/jeans.c File Reference

Problem generator for simple self-gravity test. More...

Go to the source code of this file.

Functions
void	problem (DomainS *pDomain)
	Problem initial conditions, edited for each problem.
void	problem_write_restart (MeshS *pM, FILE *fp)
	Problem specific subroutine for use with writing restart files, Edited for each problem.
void	problem_read_restart (MeshS *pM, FILE *fp)
	Problem specific subroutine for use with reading restart files, Edited for each problem.
static Real	color (const GridS *pG, const int i, const int j, const int k)
	returns first passively advected scalar s[0]
ConsFun_t	get_usr_expr (const char *expr)
	Sets pointer to expression for special output data.
VOutFun_t	get_usr_out_fun (const char *name)
	Returns a user defined output function pointer.
void	Userwork_in_loop (MeshS *pM)
	Problem work executed during each step in the main Athena loop, see main.c.
void	Userwork_after_loop (MeshS *pM)
	Problem work executed after the main Athena loop, see main.c Edited for each problem.

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Detailed Description

Problem generator for simple self-gravity test.

PURPOSE: Problem generator for simple self-gravity test.

SELF_GRAVITY must be defined; use --with-gravity=fft and for fft method, --enable-fft

B-field (when present) lies along direction perpendicular to wavevector. Wavevector is along chosen direction (1, 2, or 3).

Definition in file jeans.c.

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Function Documentation

static Real color	(	const GridS *	pG,
		const int	i,
		const int	j,
		const int	k
	)			[static]

returns first passively advected scalar s[0]

Definition at line 208 of file jeans.c.

References ConsS::d, ConsS::s, and GridS::U.

ConsFun_t get_usr_expr

(

const char *

expr

)

Sets pointer to expression for special output data.

Definition at line 214 of file jeans.c.

VOutFun_t get_usr_out_fun

(

const char *

name

)

Returns a user defined output function pointer.

Definition at line 223 of file jeans.c.

void problem

(

DomainS *

pDomain

)

Problem initial conditions, edited for each problem.

Definition at line 26 of file jeans.c.

References amp, ath_error(), b0, ConsS::B1c, GridS::B1i, ConsS::B2c, GridS::B2i, ConsS::B3c, GridS::B3i, beta, cc_pos(), ConsS::d, d0, GridS::dx1, GridS::dx2, GridS::dx3, ConsS::E, four_pi_G, Gamma, Gamma_1, grav_mean_rho, DomainS::Grid, GridS::ie, GridS::is, Iso_csound, GridS::je, GridS::js, GridS::ke, GridS::ks, lambda, ConsS::M1, ConsS::M2, ConsS::M3, n, GridS::Nx, DomainS::Nx, omega, p0, par_getd(), par_geti(), ConsS::s, and GridS::U.

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void problem_read_restart	(	MeshS *	pM,
		FILE *	fp
	)

Problem specific subroutine for use with reading restart files, Edited for each problem.

Definition at line 200 of file jeans.c.

void problem_write_restart	(	MeshS *	pM,
		FILE *	fp
	)

Problem specific subroutine for use with writing restart files, Edited for each problem.

Definition at line 195 of file jeans.c.

void Userwork_after_loop

(

MeshS *

pM

)

Problem work executed after the main Athena loop, see main.c Edited for each problem.

Definition at line 233 of file jeans.c.

void Userwork_in_loop

(

MeshS *

pM

)

Problem work executed during each step in the main Athena loop, see main.c.

Edited for each problem.

Definition at line 228 of file jeans.c.