[Wiggy]

Hi, i am relatively new to UDF
below is my UDF file,

/************************************************** ********************
udfexample.c
UDF for specifying a steady-state velocity profile boundary condition
************************************************** ********************/
#include "udf.h" /* must be at the beginning of every UDF you write */
DEFINE_PROFILE(start_temperature,thread,index)
{
real y[ND_ND]; /* this will hold the position vector */
real x;
face_t f;
begin_f_loop(f,thread) /* loops over all faces in the thread passed
in the DEFINE macro argument */
{
F_CENTROID(y,f,thread);
x = y[0];
F_PROFILE(f,thread,index) = 400.351. + 300.*x;
}
end_f_loop(f,thread)
}

When i interpret my UDF file, it says parse error at the profile function file F_PROFILE(f,thread,index) = 400.351. + x*300.;
But when i remove the decimal values of 400.351 to 400, it has no problem interpreting it.

Is there any other methods or tips that enable me to include decimal values inside the profile function?

Thx a bunch

[Micael]

Did you try this:
F_PROFILE(f,thread,index) = 400.351 + 300.*x;
instead of this:?
F_PROFILE(f,thread,index) = 400.351. + 300.*x;

There are two decimal points here: "400.351." The second one is inappropriate.