I used a custom drag model and ran the simulation float invalid operation in __wrap_pow, the error is coming. I submit bug report, can you please tell me why this error is coming and why the simulation is not starting.
Chhotelal, you need to learn to debug your own code. It’s not easy to develop MFiX UDF code on Windows because the debugging tools aren’t available and the stack traces are incomplete. Can you get access to a Linux machine for your work?
You’d be much better off using a Linux machine for development. Once the code is written and debugged you could use it anywhere. You could try installing Linux on a partition on your Windows machine (however we cannot assist with this).
Note that we have limited resources for support and cannot serve as your dedicated debugging team. You should really try to get help from somebody at your institution.
Furthermore, I ran the attached case and did not get a floating point error. It ran to completion. And there’s no errors in the log files you uploaded. Are you sure you uploaded the correct files?