[Ahmed kandil]

HI every one ..
I try to write a udf code for inlet and outlet temp and this the part of it .
when i interpreted this code in fluent there are error as indicated before the last line (invalid expression type for if: float.)..
How i can solve this error ?


DEFINE_PROFILE(Temp_inlet,t,i)
{
face_t f;

real current_time;
current_time=CURRENT_TIME;

if (current_time = 0)
{
begin_f_loop(f,t)
{
F_PROFILE(f,t,i) = 200;
}
end_f_loop(f,t)
}
else if (current_time < stop_time)
{
begin_f_loop(f,t)
{
F_PROFILE(f,t,i)= (Q/(m*Cp)) + ave_T;
}
end_f_loop(f,t)
}
else
{
begin_f_loop(f,t)
{
F_PROFILE(f,t,i)= 288.15;
}
end_f_loop(f,t)
} ERROR IS IN LINE (invalid expression type for if: float.)
}