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|ID||Project||Category||View Status||Date Submitted||Last Update|
|0003443||OpenFOAM||Bug||public||2020-02-06 16:10||2020-02-07 16:16|
|Summary||0003443: nutkAtmRoughWallFunction not working properly in OpenFOAM 7|
|Description||I was trying to create a simple 2D case for an atmospheric boundary layer flow in OpenFOAM7 to check the consistency of the inlet and outlet profiles, but I had zero luck recreating anything I found in the literature (the outflow U, k, eps and nut all were very different). By elimination I finally found that the nutkAtmRoughWallFunction BC behaved strangely. It was totally unresponsive to any change of kappa or z0 inputs. I have read in the OpenFoam 7 release notes that the nutkRoughWallFunction code was updated, which made me suspicious and I quickly checked the case in OpenFOAM 6 as well. The problem went completely away, so it appears to be a bug in OpenFOAM 7 (maybe due to the changes made to nutkRoughWallFunction, but I don't have the skills jet to investigate any further).|
|Steps To Reproduce||Simply run the case in OpenFOAM 6 vs. 7:|
I used ParaView to visualize the profiles (the state is also included).
|Tags||No tags attached.|
Can you reproduce the problem in the tutorial case: tutorials/incompressible/simpleFoam/turbineSiting
I have run this case in OpenFOAM-6, 7 and dev and get the same results for all three versions.
That is strange...
I have uploaded a comparison of the vertical profiles (at the outlet, of U, k, eps etc.) I got from both the nutkAtmRoughWall and turbineSiting cases:
They are very different for me.
Author: Henry Weller <http://openfoam.org>
Date: Thu Feb 6 21:42:26 2020 +0000
nutkAtmRoughWallFunction: Updated calcNut -> nut
Resolves bug-report https://bugs.openfoam.org/view.php?id=3443
It worked! I am now getting the same results as with OF6.
Resolved in OpenFOAM-7 by commit ac27a25923cde9fd468ec09944b7c3a9872e8215
Resolved in OpenFOAM-dev by commit 6a2ecb4d0441e9a4906c71a577b626bcb6ff72b6
|2020-02-06 16:10||bakonyi.dani||New Issue|
|2020-02-06 18:12||henry||Note Added: 0011135|
|2020-02-06 19:50||bakonyi.dani||Note Added: 0011136|
|2020-02-06 21:43||henry||Note Added: 0011138|
|2020-02-07 16:07||bakonyi.dani||Note Added: 0011149|
|2020-02-07 16:16||henry||Assigned To||=> henry|
|2020-02-07 16:16||henry||Status||new => resolved|
|2020-02-07 16:16||henry||Resolution||open => fixed|
|2020-02-07 16:16||henry||Fixed in Version||=> 7|
|2020-02-07 16:16||henry||Note Added: 0011150|