[zuraidah rasep]

Hye

I have question related with coding of UDF that used in ANSYS FLUENT. Viscosity fluid (SAE20W40) change with temperature.

EQUATION: y=438.13e^-0.036x

THE CODING IS:
/************************************************** *******************
UDF for specifying a temperature-dependent viscosity property
************************************************** ********************/

#include "udf.h"

DEFINE_PROPERTY(cell_viscosity, cell, thread)
{
real mu_lam;
real temp = C_T(cell, thread);
mu_lam = 438.13*exp(-0.036*temp);
return mu_lam;
}


is it correct the coding..need advice from here.Thanks again.