How to control reverse flow and obtain convergence

Saidul · May 28, 2015, 20:45

Hi,
I am running DPM simulation and facing reverse flow in the outlet. I have set the residual convergence criteria as .000001 and solution does not converged. How can I fix the problem?

The number of nodes is 400000. I run sever case like 500000, 600000, 700000, 800000, 900000. I checked the mesh quality. The orthogonal quality is .3 and max skewness value is .81.

Do you have any suggestion, how can I obtain the convergence.

Thanks

CeesH · May 29, 2015, 06:33

In what way is it not converged, can you elaborate a bit?

May 28, 2015, 20:45	How to control reverse flow and obtain convergence	#1
Saidul Member S. Morichika Join Date: Aug 2014 Posts: 62 Rep Power: 12	Hi, I am running DPM simulation and facing reverse flow in the outlet. I have set the residual convergence criteria as .000001 and solution does not converged. How can I fix the problem? The number of nodes is 400000. I run sever case like 500000, 600000, 700000, 800000, 900000. I checked the mesh quality. The orthogonal quality is .3 and max skewness value is .81. Do you have any suggestion, how can I obtain the convergence. Thanks

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May 29, 2015, 06:33		#2
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	In what way is it not converged, can you elaborate a bit?