[hillat]

when I am trying to compiled it's return error 139.

[pakk]

That obviously means that there is a mistake in your udf.

[hillat]

 
The UDF library you are trying to load (libudf) is not compiled for 2d on the current platform (win64).
The system cannot find the file specified.

my udf code is

 
#include "udf.h"
DEFINE_PROFILE(inlet_x_velocity, thread, position) 
{
real x[ND_ND]; /* this will hold the position vector */
real y;
face_t f;
begin_f_loop(f, thread)
{
F_CENTROID(x,f,thread);
y = x[1]/0.01;
F_PROFILE(f, thread, position) = 0.219*(-y*y+y);
}
end_f_loop(f, thread)
}