Reversed Flow in Fluent Analysis

L. Hamid · October 30, 2011, 04:55

Hi

I am going to analysis behavior of the water in the Jet condenser. I have meshed the model but in the Fluent after 700 iterations I see the "Reversed Flow in 8 faces on pressure outlet 9"

I increased the nomber of meshes up to 1500000 cells but the reversed flow did not remove. Please help me how can I omit the reversed flow in iterations? I choose the K-e, RNG method for turbulent flow.

Regards

Hamid

Laci · October 30, 2011, 15:15

Reversed flow does not necessarily mean error, however it is hard to prove it.

delaneyluke · November 7, 2011, 03:14

You could extend your outlet till a region where there is no recirculation and hence no reversed flow.

October 30, 2011, 04:55	Reversed Flow in Fluent Analysis	#1
L. Hamid Member Hamid Join Date: Dec 2010 Location: Iran Posts: 30 Rep Power: 15	Hi I am going to analysis behavior of the water in the Jet condenser. I have meshed the model but in the Fluent after 700 iterations I see the "Reversed Flow in 8 faces on pressure outlet 9" I increased the nomber of meshes up to 1500000 cells but the reversed flow did not remove. Please help me how can I omit the reversed flow in iterations? I choose the K-e, RNG method for turbulent flow. Regards Hamid

November 7, 2011, 03:14		#3
delaneyluke Senior Member Join Date: Mar 2009 Location: Indiana, US Posts: 186 Rep Power: 17	You could extend your outlet till a region where there is no recirculation and hence no reversed flow. laurentb likes this.

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October 30, 2011, 15:15		#2
Laci Member anonym Join Date: Mar 2009 Posts: 65 Rep Power: 17	Reversed flow does not necessarily mean error, however it is hard to prove it.