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IDProjectCategoryView StatusLast Update
0001724OpenFOAM[All Projects] Bugpublic2015-05-31 21:20
ReporterdhoraAssigned Tohenry 
PrioritynormalSeveritymajorReproducibilityalways
Status resolvedResolutionfixed 
Product Version 
Fixed in Version 
Summary0001724: Robustness of SST
DescriptionA simulation of the '2D NASA Wall-Mounted Hump Separated Flow Validation Case' crashed due to an issue in kOmegaSST::F1(const volScalarField& CDkOmega) and kOmegaSST::F2(). I didn't investigate further but replacing sqrt(k_) with sqrt(max(k_,kMin_)) in both functions solved the issue.
TagsNo tags attached.

Activities

henry

2015-05-31 19:36

manager   ~0004854

I would need to spend a bit more time on the overflow limiters; I am guessing that the issue is with overflow rather than a start-up problem with k = 0.

Could you supply the test-case to reproduce the problem here?

dhora

2015-05-31 20:20

reporter  

humpHalf.tar.gz (1,791,286 bytes)

dhora

2015-05-31 20:21

reporter  

faces.tar.gz (1,788,774 bytes)

dhora

2015-05-31 20:24

reporter   ~0004855

Last edited: 2015-05-31 20:25

View 2 revisions

CFD setup does not match the real setup but it should help to identify the problem. Case was made for simpleFoam

dhora

2015-05-31 20:45

reporter   ~0004856

Last edited: 2015-05-31 20:50

View 2 revisions

It's probably necessary to set the relaxation of k/omega to 0.5

henry

2015-05-31 20:59

manager   ~0004857

This case runs OK in OpenFOAM-dev. I am adding the k limiters from dev to 2.4.x and will push after testing.

dhora

2015-05-31 21:02

reporter   ~0004858

Thanks.

henry

2015-05-31 21:19

manager   ~0004859

Resolved in OpenFOAM-2.4.x by commit 9b0d7415bb614fd07f900ba5b2132aeb56d05ee3

Already fixed in OpenFOAM-dev

Issue History

Date Modified Username Field Change
2015-05-31 19:20 dhora New Issue
2015-05-31 19:36 henry Note Added: 0004854
2015-05-31 20:20 dhora File Added: humpHalf.tar.gz
2015-05-31 20:21 dhora File Added: faces.tar.gz
2015-05-31 20:24 dhora Note Added: 0004855
2015-05-31 20:25 dhora Note Edited: 0004855 View Revisions
2015-05-31 20:45 dhora Note Added: 0004856
2015-05-31 20:50 dhora Note Edited: 0004856 View Revisions
2015-05-31 20:59 henry Note Added: 0004857
2015-05-31 21:02 dhora Note Added: 0004858
2015-05-31 21:19 henry Note Added: 0004859
2015-05-31 21:19 henry Status new => resolved
2015-05-31 21:19 henry Resolution open => fixed
2015-05-31 21:19 henry Assigned To => henry