View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0000802||OpenFOAM||[All Projects] Bug||public||2013-03-26 07:12||2015-02-05 21:13|
|Platform||Linux||OS||Ubuntu||OS Version||12.04 LTS|
|Fixed in Version|
|Summary||0000802: yPlusLES not for compressible cases|
|Description||The release description for 2.2.0 states:|
"new yPlusRAS and yPlusLES - calculates yPlus for incompressible and compressible cases, employing RAS and LES turbulence, respectively."
The yPlusLES utility in 2.2.x-45d55aea0dee seems to be for incompressible only though.
Region functionality would be a bonus.
|Tags||No tags attached.|
Thanks for your feature request. The release notes describe the addition of new yPlusRAS and yPlusLES function objects, as opposed to utilities:
The yPlusLES utility is currently lagging behind the equivalent function object
Since this seemed to be a good coding exercise, I've made a derivative of the "yPlusLES" utility to also have the "-compressible" option.
Instructions, code and test cases for validating the calculations are available here: https://github.com/wyldckat/yPlusLESWCompressible/tree/of22x
Since there isn't a repository for "Unsupported-Contrib-OpenFOAM-2.2.x" yet, I took the liberty of setting up the previously mentioned repository mostly oriented to this single utility and the test cases for checking the code.
Other than the folder structure, the code should (hopefully) be compliant with the "Unsupported Contributions" established protocols.
Note that the compressible option appears to have made its way into yPlusRAS (and wallHeatFlux) but does not seem to work for buoyant solvers i.e. where rho does not typically exist in the time directories. Perhaps it could be read if present or calculated as needed i.e. as per the way it is created in rhoPimpleFoam (or as per it appears to have done in wyldckat's github version above):
@roth: I've remembered about your comment today, because bug #1141 was fixed yesterday.
And I'm having a hard time understanding what you mean by your comment, because even before the aforementioned bug was fixed, "rho" is still coming from the turbulence model and "yPlus" is calculated directly in the wall function.
And I've tested running:
in the tutorial "heatTransfer/buoyantSimpleFoam/hotRoom" and "heatTransfer/buoyantBoussinesqSimpleFoam/hotRoom"... and now I see what you mean, because all "yPlus" values are all zero.
OK, two details:
1- This issue should be reported separately in another bug report, since this bug report is about yPlusLES.
2- Further debugging is needed, since yPlus in yPlusRAS is calculated in the wall function, such as "mutkWallFunctionFvPatchScalarField::yPlus()", where "rho" is retrieved from the turbulence model.
||Resolved by commit 45948394988fecc4efb3fe397de9645e75a44651 in OpenFOAM-dev|
||Note Added: 0002072|
|2013-05-26 23:06||wyldckat||Note Added: 0002243|
|2013-07-30 15:25||roth||Note Added: 0002354|
|2014-02-02 16:47||wyldckat||Note Added: 0002803|
|2015-02-04 23:11||henry||Note Added: 0003678|
|2015-02-04 23:11||henry||Status||new => resolved|
|2015-02-04 23:11||henry||Resolution||open => fixed|
|2015-02-04 23:11||henry||Assigned To||=> henry|