Residuals Imbalance

Andrea159357 · March 14, 2019, 03:10

Hello,
i normally use fluent but i'm starting with CFX and i'm wondering if is possible plot residuals imbalance in every cell as i do in fluent.

Thanks

ghorrocks · March 14, 2019, 04:50

In CFX-Pre have a look in the output/results file tab. You can add the residuals to the results file. Then you can use CFD-Post to view the residuals across your model.

A minor quibble: It is not "residuals imbalance", as the residuals do not represent the imbalance of some conservation. The "imbalances" do, they are the global conservation of the various variables. But residuals is a measure of the accuracy of the solution of the linear equations, not a measure of conservation.

March 14, 2019, 03:10	Residuals Imbalance	#1
Andrea159357 Member Andrea Join Date: Mar 2018 Posts: 62 Rep Power: 8	Hello, i normally use fluent but i'm starting with CFX and i'm wondering if is possible plot residuals imbalance in every cell as i do in fluent. Thanks

March 14, 2019, 04:50		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	In CFX-Pre have a look in the output/results file tab. You can add the residuals to the results file. Then you can use CFD-Post to view the residuals across your model. A minor quibble: It is not "residuals imbalance", as the residuals do not represent the imbalance of some conservation. The "imbalances" do, they are the global conservation of the various variables. But residuals is a measure of the accuracy of the solution of the linear equations, not a measure of conservation. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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