|November 19, 2012, 15:49||
Flow/ Velocity Calculation
Join Date: Jul 2012
Location: Washington DC
Posts: 47Rep Power: 5
As shown in the attached figure, I have fluid passing in positive and negative direction, through a plane. I was wondering, if there is a way to calculate the average flowrate (or even velocity) that is going in positive direction and negative direction separately.
In paraFoam, I tried using "integrateVariable" filter for this plane, but it is giving me integrated total velocity through this plane and not negative and positive values.
Any help in this regard will be greatly appreciated. Thanks for your time.
|November 21, 2012, 19:19||
Join Date: Mar 2009
Posts: 3,915Rep Power: 40
variables ( "upArea=sum(U.z>0 ? area() : 0);" "upVelSum=sum(U.z>0 ? U.z*area() : 0);" ); expression "upVelSum/max(upArea,1e-15)";
Note: I don't use "Friend"-feature on this forum out of principle. Ah. And by the way: I'm not on Facebook either. So don't be offended if I don't accept your invitation/friend request
|Thread||Thread Starter||Forum||Replies||Last Post|
|internal flow BCs: pressure driven versus velocity driven||mihaipruna||OpenFOAM Running, Solving & CFD||22||March 6, 2014 11:06|
|Steady pipe flow mean velocity higher than inlet velocity||anita||OpenFOAM Running, Solving & CFD||7||September 25, 2012 05:35|
|reversed flow at velocity inlet / mass flow inlet||ib||FLUENT||1||March 26, 2007 13:11|
|flow simulation across a small fan||jane luo||Main CFD Forum||15||April 12, 2004 17:49|
|Rotation flow calculation.||Hans||FLUENT||0||March 31, 2003 06:03|