2018-04-20 11:32 BST

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IDProjectCategoryView StatusLast Update
0002832OpenFOAM[All Projects] Bugpublic2018-02-07 18:26
Reporterjkau 
Assigned To 
PrioritynormalSeverityminorReproducibilityalways
StatusnewResolutionopen 
PlatformLinuxOSUbuntuOS Version14.04 LTS
Product Versiondev 
Target VersionFixed in Version 
Summary0002832: interFoam: unstable when restarting a reconstructed case
DescriptionWhen restarting an interFoam case in serial after reconstructing a parallel run, the restart is not smooth. Same, when the reconstructed case is again decomposed again, and restarted in parallel. One can see this in the min/max alpha-values, and also forces a oscillating quite remarkable.
If the face velocity field Uf is deleted, the re-start is smooth.
Steps To Reproduce1. Run DTCHullMoving tutorial for a short time (e.g. 0.1 s).
2. Reconstruct
3. Run in serial
4. Plot forces
TagsinterFoam
Attached Files

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-Notes

~0009269

henry (manager)

Does this problem only occur when restarting a reconstructed case or also when restarting a parallel run or a serial run?

~0009270

henry (manager)

The issue is reconstructPar treating all surface fields as fluxes and setting the sign according to the face orientation.

~0009271

jkau (reporter)

Only occures when restarting a reconstructed case. Is there any need for storing Uf?

~0009272

henry (manager)

> Is there any need for storing Uf?

Same as phi in the static mesh case; formally these are needed to get an accurate restart but not critical.
+Notes

-Issue History
Date Modified Username Field Change
2018-02-07 10:53 jkau New Issue
2018-02-07 11:06 jkau Tag Attached: interFoam
2018-02-07 12:08 henry Note Added: 0009269
2018-02-07 12:21 henry Note Added: 0009270
2018-02-07 13:15 jkau Note Added: 0009271
2018-02-07 13:36 henry Note Added: 0009272
+Issue History