reverse flow

bob12 · January 21, 2010, 06:43

hi all,
i have a problem with a simulation in fluent. the problem is the message on reverse flow. i know that the flow on the face is opposite respect on the boundary condition; but how can resolve it? the model that i used is:

pressure based
k-e turbolence model
incompressible fluid

any suggestions are welcome
thanks

jack1980 · January 21, 2010, 12:02

what does your domain / geometry look like?

Philipov · January 22, 2010, 03:18

There are many, many, many, many ... topics with this problem.... and always the first answer is.... extend the domain at the outlet... till the region of fully-developed flow... the other option is to chose other BCs...

Advice: Look for older topics...

January 21, 2010, 06:43	reverse flow	#1
bob12 Member Join Date: Oct 2009 Location: Italy Posts: 88 Rep Power: 17	hi all, i have a problem with a simulation in fluent. the problem is the message on reverse flow. i know that the flow on the face is opposite respect on the boundary condition; but how can resolve it? the model that i used is: pressure based k-e turbolence model incompressible fluid any suggestions are welcome thanks

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January 21, 2010, 12:02		#2
jack1980 Senior Member Jouke de Baar Join Date: Oct 2009 Posts: 127 Rep Power: 17	what does your domain / geometry look like?

January 22, 2010, 03:18		#3
Philipov Senior Member Svetlin Filipov Join Date: Mar 2009 Location: United Kingdom Posts: 176 Rep Power: 17	There are many, many, many, many ... topics with this problem.... and always the first answer is.... extend the domain at the outlet... till the region of fully-developed flow... the other option is to chose other BCs... Advice: Look for older topics...