[Phil-M]

Hello,

I have been given a velocity profile UDF made for a previous version of ANSYS, which however does not work in Fluent 17.

Any input on how to update this to work in Fluent 17 would be greatly appreciated.

#include "udf.h"

DEFINE_PROFILE(inlet_parab,thread,equation)
{
float x[3],y; /*face centroid coordinates */
face_t f; /* face identifier*/
float Vz;
float C1 = 1.76E-6;
float C2 = 2E-5;
float C3 = 6E-4;
float C4 = 2.1E-2;
float Const = 1.79;

/* loop on all faces belonging to the current thread */

begin_f_loop(f,thread)
{
F_CENTROID(x,f,thread); /*get the face centroid coordinates*/
y=x[1]; /*get the y coordinate */
Vz = -(C1*y*y*y*y)-(C2*y*y*y)+(C3*y*y)+(C4*y)+ Const; /*equation fit at 1.79 m/s to channel flow */
F_PROFILE(f,thread,equation)=Vz;
}
end_f_loop(f,thread)
}


Kind Regards, Phil.