[Alex41]

Hello everyone,

I'm quite new with ANSYS UDF. I tried to write a EXECUTE at end function to calculate fluid force on a body at the end of each time step but I have an issue.
In this DEFINE_EXECUTE_AT_END I call a function Bilinear_Interpolation(....) to calculate additional force but my return result is different from the value of the result variable.
The structure of the UDF is:
declaration of variable
DEFINE_EXCUTE_AT_END
{
additional force=Bilinear_Interpolaton(...);
}

real Bilinear_interpolation(...)
{
real ResultFunction;
calculations....
ResultFunction=...;

return ResultFunction;
}

And for example at the end, ResultFunction=12 and additional force=37

Do you have any idea of what is wrong?

Kind regards,

Alex

[CFDavatar]

Hello, I want to do the same. Did you figure it out?

[pakk]

Originally Posted by CFDavatar

Hello, I want to do the same. Did you figure it out?

So you have the same problem as Alex41?
Interesting!

How did you find out that the two values are different? Alex41 did not mention this.