[ned.musab]

Hello everyone,

I want to know how to plot CL(Lift Coefficient) Vs angle of attack(omega) graph for 'output parameters' using UDF.
I use below like to set my output parameter macro

https://www.sharcnet.ca/Software/Ans...parameter.html

Now, problem is my udf anyways got compiled but its not plotting cl vs aoa graph. Why is it so?

My udf look like as below. Is it correctly writen?

#include "udf.h"

DEFINE_CG_MOTION(oscillating_airfoil, dt, vel, omega, time, dtime)

{
real a, w, p, pi;

pi = 3.14159265;
/* define motion variables */

a = 5*(pi/36); /* Amplitude */
w = 2 * pi *1; /* Angular Frequency */
p = pi/2; /* phase */

/* define airfoil motion */

omega[2] = -a*sin(w*time+p); /* z-component of angular velocity */


}
DEFINE_OUTPUT_PARAMETER(output, omega, parlist)
{
return omega;
}