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IDProjectCategoryView StatusDate SubmittedLast Update
0000554OpenFOAM[All Projects] Bugpublic2012-06-12 15:282012-06-12 16:29
Reportervonboett 
Assigned Tohenry 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionfixed 
Platformtested aswell with othersOSUbuntuOS Version10.04
Product Version 
Target VersionFixed in Version 
Summary0000554: interFoam outlet boundary reflects phase if situated in positive coordinate quadrant
DescriptionAll different kinds of outlet boundary conditions result in a reflection of the first phase at the outlet if the outlet is situated at a place with positive coordinates. Does not appear if situated at vertices with negative coordinates.
See http://www.cfd-online.com/Forums/openfoam-solving/97127-different-solutions-comparing-pisofoam-interfoam.html#post363022 [^] for a wider discusiion and case files
Steps To Reproducedownload case folder from http://www.cfd-online.com/Forums/openfoam-solving/97127-different-solutions-comparing-pisofoam-interfoam.html#post363022 [^]
Additional InformationReproduced by others on other systems.
Tagsalpha1 reflection, interFoam, outlet
Attached Filesjpg file icon impactOnOutflowT0,15.jpg [^] (13,487 bytes) 2012-06-12 15:34


jpg file icon impactOnOutflowT0,15_withXCoordsmallerZero.jpg [^] (14,915 bytes) 2012-06-12 15:35

- Relationships

-  Notes
(0001389)
vonboett (reporter)
2012-06-12 15:38

The two pictures show the simulation at the same timestep and only differ in grid location, the one without phase reflection has its grid located with negative x-coordinates!
(0001390)
henry (manager)
2012-06-12 16:29

I guess you are using a fixed p_rgh condition at the outlet, you may find that using zeroGradient is more physical. If this is not satisfactory you will need to develop an approapriate transmissive condition for you outlet with careful handling of the p_rgh field.

- Issue History
Date Modified Username Field Change
2012-06-12 15:28 vonboett New Issue
2012-06-12 15:34 vonboett File Added: impactOnOutflowT0,15.jpg
2012-06-12 15:35 vonboett File Added: impactOnOutflowT0,15_withXCoordsmallerZero.jpg
2012-06-12 15:38 vonboett Note Added: 0001389
2012-06-12 15:39 vonboett Tag Attached: interFoam
2012-06-12 15:39 vonboett Tag Attached: alpha1 reflection
2012-06-12 15:39 vonboett Tag Attached: outlet
2012-06-12 16:29 henry Note Added: 0001390
2012-06-12 16:29 henry Status new => closed
2012-06-12 16:29 henry Assigned To => henry
2012-06-12 16:29 henry Resolution open => fixed