[Shuvadeep]

I am trying to compile the udf of motion. But error pops up each time. It shows

Error: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (win64).\n\nThe system cannot find the file specified.

\n\nD:\Flapping Wing Simulations\moving mesh Piezofan simulation\Test1\MMPiezoFan_files\dp0\FFF\Fluent\l ibudf\win64\3ddp_host\libudf.dll

Error Object: #f

#include "udf.h"

DEFINE_CG_MOTION (rotational_motion, dt, cg_vel, cg omega, time, dtime)
{
Domain *d =Get Domain(1);
Thread *t_object = Lookup_Thread(d, 2);
real moment [ND_ND], cg[ND_ND], force [ND_ND];

Compute_Force_And_Moment(d, t_object, cg, force, moment, TRUE)
real moment_z= moment [3]; \* To compute the moment at the beginning of the time step and feed into the equation of motion */

real i1 = exp(-0.823*time);
real i2 = cos (8.19*time);
real i3 = 48870 sin(8.19*time);
real i4 = 2.893 pow(10,-8);
real omega = -i4 * moment_z * i1 * (i2-i3);

cg_vel[0]=0.0;
cg_vel [1]=0.0;
cg_ve1[2]=0.0;

cg omega [0]-0.0 ;
cg omega (1)-0.0;
cg omega [2]=real omega;
}

Fluent version is 18.2 and VS 2015.

Please help!

[bloodflow]

I assume you have setup your cimputer with VisualStudio as a compiler and can compile other UDF's.

It looks like in your definitions "cg omega" has a space which is probably causes issues with it reading it as two variables or expecting a ',' or ':' .

[AlexanderZ]

open VS console, run fluent, compile

best regards