interFoam and static pressure

MatP · July 11, 2012, 13:56

Actually i'm solving two phase flows in a single rotating cylinder with a modified version of interFoam which includes the centrifugal forces.

The problem occuring to me at the moment is the thing about the p_rgh field. I've already read the several posts in the forum and i agree with the states, that p_rgh is a modified pressure field created for more computational stability.

But how can i get the static pressure? Because when i compare my results of p with the static pressure calculated with fluent, the results aren't equal.

Can anyone help me with this problem?

David* · July 15, 2012, 11:35

Maybe this post helps you: http://www.cfd-online.com/Forums/ope...tml#post285912
And be aware that in incompressible solvers you have to multiply some results by local density to obtain "real" values.

Regards

July 11, 2012, 13:56	interFoam and static pressure	#1
MatP New Member Matthias P Join Date: May 2010 Posts: 16 Rep Power: 15	Actually i'm solving two phase flows in a single rotating cylinder with a modified version of interFoam which includes the centrifugal forces. The problem occuring to me at the moment is the thing about the p_rgh field. I've already read the several posts in the forum and i agree with the states, that p_rgh is a modified pressure field created for more computational stability. But how can i get the static pressure? Because when i compare my results of p with the static pressure calculated with fluent, the results aren't equal. Can anyone help me with this problem?

July 15, 2012, 11:35		#2
David* Member David GISEN Join Date: Jul 2009 Location: Germany Posts: 68 Rep Power: 16	Maybe this post helps you: http://www.cfd-online.com/Forums/ope...tml#post285912 And be aware that in incompressible solvers you have to multiply some results by local density to obtain "real" values. Regards mizzou likes this.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
static pressure BC for interFoam	kwardle	OpenFOAM	2	March 4, 2015 04:29
Slug Flow, interFoam, problems with Contact Angle	PrzemekPL	OpenFOAM Running, Solving & CFD	13	February 18, 2014 22:10
strange curvature with interFoam (comparison with Brackbill work)	duongquaphim	OpenFOAM Running, Solving & CFD	23	July 25, 2013 01:03
Pressure problems in restarting	santiagomarquezd	OpenFOAM Running, Solving & CFD	1	January 5, 2011 22:17
Static Pressure BC in rasInterFoam	kwardle	OpenFOAM Running, Solving & CFD	0	September 19, 2008 16:15