[andrewbickerdike]

Hi,
I'm doing a project where I am simulating blood flow in the aorta and I've got a UDF for the pulsatile flow:

/* PULSATILE FLOW DEFINITION UDF */
#include "udf.h"
#define PI 3.141592654

DEFINE_PROFILE(inlet_x_velocity,th, i)
{
face_t f;
real t = CURRENT_TIME;
begin_f_loop(f,th)
{
F_PROFILE(f,th,i) = (4700.000000/(0.064731*60.0*437.435361))*pow(sin(3.141593*t),13 .0)*(cos((3.141593*t)-(PI/10.0)));
}
end_f_loop(f,th)
}


the problem being that I always get the error:
"chip-exec: inlet_x_velocity: wrong return type: double udf function expected"

Any suggestions about this?

Thanks.

[pakk]

Originally Posted by andrewbickerdike

Hi,
I'm doing a project where I am simulating blood flow in the aorta and I've got a UDF for the pulsatile flow:

/* PULSATILE FLOW DEFINITION UDF */
#include "udf.h"
#define PI 3.141592654

DEFINE_PROFILE(inlet_x_velocity,th, i)
{
face_t f;
real t = CURRENT_TIME;
begin_f_loop(f,th)
{
F_PROFILE(f,th,i) = (4700.000000/(0.064731*60.0*437.435361))*pow(sin(3.141593*t),13 .0)*(cos((3.141593*t)-(PI/10.0)));
}
end_f_loop(f,th)
}


the problem being that I always get the error:
"chip-exec: inlet_x_velocity: wrong return type: double udf function expected"

Any suggestions about this?

Thanks.

This is not a problematic error. It's the compiler being pedantic. It will never give you any problem in your simulation.
But it looks distracting. One way to remove it:

F_PROFILE(f,th,i) = (real) (4700.000000/(0.064731*60.0*437.435361))*pow(sin(3.141593*t),13 .0)*(cos((3.141593*t)-(PI/10.0)));