January 24, 2023 at 10:56 am
Nikhil Narale
Ansys Employee

Hello, 

 

Check these similar forum discussions. 
Error: Out of Scheme heap space (ansys.com)
Cannot solve [Error: Out of scheme heap space] ANSYS FLUENT 2019 R3

I hope this helps! If not, let me know. 

 

Thanks!

Nikhil