[yehia ismail]

I am trying to model turbulent pulsed jet flow with ration on to off equal 1:2 and I want to write a UDF for the time varying inlet velocity and I managed to write this UDF but I got a parse error in line 7 where t_local=t-0.1int(t/0.1)

#include "udf.h"
DEFINE_PROFILE(unsteady_velocity, thread, position)
{
face_t f;
real t = CURRENT_TIME;
real t_local;
t_local = t - 0.1*int(t/0.1);

begin_f_loop(f, thread)
{
if ( t_local < 0.033 )
F_PROFILE(f, thread, position) = 172.47*sin(94.25*t_local);
else
F_PROFILE(f, thread, position) = 0;
}
end_f_loop(f, thread)
}

[Hortencia]

yehia ismail, were you able to solve the problem? I am a similar situation, I need to model a pulsed flow at a inlet.

[pakk]

t_local = t - 0.1*(int)(t/0.1);