wall functions descriptor. More...

#include <cs_wall_functions.h>

Collaboration diagram for cs_wall_functions_t:

Data Fields
cs_wall_f_type_t	iwallf

cs_wall_f_s_type_t	iwalfs

int	iwallt

double	ypluli

Detailed Description

wall functions descriptor.

Members of this wall functions descriptor are publicly accessible, to allow for concise syntax, as it is expected to be used in many places.

Field Documentation

iwalfs

wall functions for scalar

0: three layers (Arpaci and Larsen) or two layers (Prandtl-Taylor) for Prandtl number smaller than 0.1
1: consistant with the 2 scales wall function for velocity using Van Driest mixing length

iwallf

wall functions for velocity

0: no wall functions
1: one scale of friction velocity (power law)
2: one scale of friction velocity (log law)
3: two scales of friction velocity (log law)
4: two scales of friction velocity (log law) scalable wall functions
5: two scales of friction velocity (using V. Driest mixing length)

iwallt

exchange coefficient correlation

0: not use by default
1: exchange coefficient computed with a correlation

ypluli

limit value of $y^+$ for the viscous sublayer

ypluli depends on the chosen wall function: it is initialized to 10.88 for the scalable wall function (iwallf=4), otherwise it is initialized to $1/\kappa\approx 2,38$ . In LES, ypluli is taken by default to be 10.88. Always useful.

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

src/base/cs_wall_functions.h
src/base/cs_wall_functions.c

Data Fields

Detailed Description

Field Documentation