View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000874 | OpenFOAM | Bug | public | 2013-05-28 19:21 | 2013-05-29 09:57 |
| Reporter | Assigned To | ||||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | resolved | Resolution | no change required | ||
| Platform | Linux | OS | Ubuntu | OS Version | 10.04 |
| Summary | 0000874: No more muSgsWallFunction for compressible LES in 2.2.x | ||||
| Description | Hi, I'm looking for a wall function for muSgs/alphaSgs in a compressible LES model. In OpenFOAM 2.1.0, the "/opt/openfoam211/src/turbulenceModels/compressible" folder contained a "derivedFvPatchFields" folder where there was a "muSgsWallFunction" and a "alphaSgsWallFunction". Now in the 2.2.x, the folder "derivedFvPatchFields" is gone and there is no more any wall functions for LES compressible. Thank you. | ||||
| Additional Information | I tried to copy the file (wall function) from the 2.1.0 folder in 2.2.x and wmake it. But the library typo changes between the two versions... | ||||
| Tags | No tags attached. | ||||
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Back in August 2012, they've "Generalised wall-functions between RAS and LES/DES modelling". To quote Andy: «in the 2.1.x line we have updated the wall function usage, such that the RAS-based wall functions can now be applied to LES calculations, avoiding a large amount of code duplication.» This was somewhat discussed in the bug report #627: http://www.openfoam.org/mantisbt/view.php?id=627 The trick to fix your problem is to compare between OpenFOAM versions the reference tutorial you've based your case on. |
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Normally the value for RAS and LES must not be the same right? muSgs should be lower than muT. So, if I take the wall function from RAS, the muSgs near wall will be over predicted, no? It's more like "DES" than LES. I'm not aware about wall function, so it's maybe right what you say. But it's ok because I succeeded in the implementation of the muSgs wall function from 2.1 to 2.2 Thanks anyway |
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The behaviour of the old muSgsWallFunction for LES cases can be recovered by using the mutUSpaldingWallFunction wall function. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2013-05-28 19:21 |
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New Issue | |
| 2013-05-28 23:41 | wyldckat | Note Added: 0002245 | |
| 2013-05-29 02:44 |
|
Note Added: 0002246 | |
| 2013-05-29 09:57 |
|
Note Added: 0002248 | |
| 2013-05-29 09:57 |
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Status | new => resolved |
| 2013-05-29 09:57 |
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Fixed in Version | => 2.2.x |
| 2013-05-29 09:57 |
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Resolution | open => no change required |
| 2013-05-29 09:57 |
|
Assigned To | => user2 |
