Why increasing blockmesh hangs the solver?

magiclevinho · March 12, 2018, 10:56

Dear Users,

I have a question!
If I simulate with 25,25,25 block divisions it completes without problem, but when I increase blockmesh size it runs into "na" values. What could be the problem?

piu58 · March 12, 2018, 12:31

Quote:

Originally Posted by magiclevinho

Dear Users,

I have a question!
If I simulate with 25,25,25 block divisions it completes without problem, but when I increase blockmesh size it runs into "na" values. What could be the problem?

The system of equations may become more stiff and requires another approach. I would first reduce the time step / maxCo.

To make more clear statements I need more information.

magiclevinho · March 12, 2018, 12:33

Thank you for answering, but maybe I found the problem, which is
I refined the mesh around rotating region, and now it seems working, although the simulation is not over yet.

March 12, 2018, 10:56	Why increasing blockmesh hangs the solver?	#1
magiclevinho New Member Levente Sz. Join Date: Mar 2018 Posts: 6 Rep Power: 8	Dear Users, I have a question! If I simulate with 25,25,25 block divisions it completes without problem, but when I increase blockmesh size it runs into "na" values. What could be the problem?

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March 12, 2018, 12:33		#3
magiclevinho New Member Levente Sz. Join Date: Mar 2018 Posts: 6 Rep Power: 8	Thank you for answering, but maybe I found the problem, which is I refined the mesh around rotating region, and now it seems working, although the simulation is not over yet.