[cfd_steve]

Hi all,
I need to specify a variable mass flow inlet as a sinusoidal function of time. I am new to FLUENT and managed to write the following code. It shows an error when interpreted in FLUENT.The following message displays "line 5: invalid lvalue in assignment". Total simulation time = 0.003125 s. Time step size = 1.13e-5. Could anyone tell where i'm going wrong?
#include "udf.h"
DEFINE_PROFILE(inlet_mf,th,i)
{
face_t f;
for(CURRENT_TIME=0; CURRENT_TIME<=0.003125; CURRENT_TIME = CURRENT_TIME+1.13e-5)
F_PROFILE(f,th,i) = 0.3866*sin(2010.88*CURRENT_TIME)
printf("Mass flow rate for new time step updated to %d\n",F_PROFILE);
}