cs_lagr_sde.h File Reference

#include "cs_defs.h"

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Functions
void	cs_lagr_sde (cs_real_t dt_p, const cs_real_t taup[], const cs_real_3_t tlag[], const cs_real_3_t piil[], const cs_real_33_t bx[], cs_real_t tsfext[], const cs_real_3_t gradpr[], const cs_real_33_t gradvf[], cs_real_t terbru[], const cs_real_t vislen[], cs_lnum_t *nresnew)
	Integration of particle equations of motion: More...
void	cs_lagr_sde_attr (cs_lagr_attribute_t attr, cs_real_t *tcarac, cs_real_t *pip)
	Integration of a stochastic differential equation (SDE) for a user particle variable (attribute). More...

Function Documentation

cs_lagr_sde()

void cs_lagr_sde	(	cs_real_t	dt_p,
		const cs_real_t	taup[],
		const cs_real_3_t	tlag[],
		const cs_real_3_t	piil[],
		const cs_real_33_t	bx[],
		cs_real_t	tsfext[],
		const cs_real_3_t	gradpr[],
		const cs_real_33_t	gradvf[],
		cs_real_t	terbru[],
		const cs_real_t	vislen[],
		cs_lnum_t *	nresnew
	)

Integration of particle equations of motion:

• Standard Model : First or second order
• Deposition submodel (Guingo & Minier, 2008) if needed

Parameters

[in]	dt_p	lagrangian time step
[in]	taup	dynamic characteristic time
[in]	tlag	fluid characteristic time
[in]	piil	terme in P-U SDE integration
[in]	bx	turbulence characteristics
[out]	tsfext	info for return coupling source terms
[in]	gradpr	pressure gradient
[in]	gradvf	fluid velocity gradient
[out]	terbru	FIXME
[in]	vislen	FIXME

• Standard Model : First or second order
• Deposition submodel (Guingo & Minier, 2008) if needed

Parameters

[in]	dt_p	lagrangian time step
[in]	taup	dynamic characteristic time
[in]	tlag	fluid characteristic time
[in]	piil	term in integration of U-P SDEs
[in]	bx	turbulence characteristics
[out]	tsfext	info for return coupling source terms
[in]	gradpr	pressure gradient
[in]	gradvf	fluid velocity gradient
[out]	terbru	FIXME
[in]	vislen	FIXME

cs_lagr_sde_attr()

void cs_lagr_sde_attr	(	cs_lagr_attribute_t	attr,
		cs_real_t *	tcarac,
		cs_real_t *	pip
	)

Integration of a stochastic differential equation (SDE) for a user particle variable (attribute).

When there is interaction with a boundary face, the integration degenerates to order 1 (even if the 2nd order scheme is active).

Parameters

[in]	attr	attribute/variable
[in]	tcarac	variable characteristic time pip right-hand side associated with SDE

When there is interaction with a boundary face, the integration degenerates to order 1 (even if the 2nd order scheme is active).

Parameters

[in]	attr	attribute/variable
[in]	tcarac	variable characteristic time
[in]	pip	right-hand side associated with SDE