Topology estimate factor
 

Dear CFD Community

I am running fan cooling system with 1.1M nodes/3.5M elements. Some of the physics setting are: fan rotating domain, shaft rotating wall, and wall temperature and wall heat flux. The inlet BC is 180kpa/106C with an opening outlet BC. Once I run the CFX solver I got a message saying that: The solver ran out of temporary space while building a linked list for a domain interface. Try setting the expert parameter "topology estimate factor" to a value greater than 1.0. Values higher than 1.2 should not be necessary.

I am sure that my solver has enough memory and cores to solve this model but I don’t know why I am getting this error. Could anyone suggest help please?

Thank you

It has nothing to do with memory. It is the complexiity of the geometry/setup/whatsoever.
Did you try the expert parameter as suggested?