reverse flow

bob12 · January 21, 2010, 05:43

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, 11:02

what does your domain / geometry look like?

Philipov · January 22, 2010, 02:18

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, 05:43	reverse flow	#1
bob12 Member Join Date: Oct 2009 Location: Italy Posts: 88 Rep Power: 16	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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
reverse flow error message	Kiraka	FLUENT	12	June 3, 2021 20:56
Can 'shock waves' occur in viscous fluid flows?	diaw	Main CFD Forum	104	February 16, 2006 05:44
Reverse flow in the VOF model	yan	FLUENT	1	May 26, 2005 09:14
reverse flow	Giovanni	FLUENT	11	October 15, 2001 03:01
reverse flow in pressure-outlet?	hanjun	FLUENT	3	August 29, 2001 21:46

January 21, 2010, 11:02		#2
jack1980 Senior Member Jouke de Baar Join Date: Oct 2009 Posts: 127 Rep Power: 16	what does your domain / geometry look like?

January 22, 2010, 02:18		#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...