fieldAverage giving negative variances in OpenFOAM9

gferrante · January 28, 2022, 08:22

Hi everyone!

I was doing some comparison between results from OF2.4.0 and OF9 and I noticed that in OF9 the function fieldAverage gives negative values of the variances, e.g. TPrime2Mean.

Have someone noticed the same issue?

I attach an example with the tutorial smallPoolFire3D.

Thank you very much!

Severus · October 16, 2024, 08:36

Hello,
I know the reply is late, but it may help someone in future.

I also faced this issue recently. The reason is that there was a bug and this was resolved already on Git.
Check the report: https://bugs.openfoam.org/view.php?id=3776
Resolved on Git: https://github.com/OpenFOAM/OpenFOAM...10f36e0e08a996

However, for people who simply download the compiled OpenFOAM (pack) from the website this bug fix is not incorporated. This is because it is still not updated there.

The solution is to clone the latest version from Git(https://github.com/OpenFOAM/OpenFOAM-9) and you have to compile the code from source (https://openfoam.org/download/source/)

Thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[Other] mesh airfoil NACA0012	anand_30	OpenFOAM Meshing & Mesh Conversion	13	March 7, 2022 18:22
[blockMesh] non-orthogonal faces and incorrect orientation?	nennbs	OpenFOAM Meshing & Mesh Conversion	7	April 17, 2013 06:42
[blockMesh] error message with modeling a cube with a hold at the center	hsingtzu	OpenFOAM Meshing & Mesh Conversion	2	March 14, 2012 10:56
[blockMesh] BlockMesh FOAM warning	gaottino	OpenFOAM Meshing & Mesh Conversion	7	July 19, 2010 15:11
[blockMesh] Axisymmetrical mesh	Rasmus Gjesing (Gjesing)	OpenFOAM Meshing & Mesh Conversion	10	April 2, 2007 15:00

October 16, 2024, 08:36		#2
Severus Member Shravan Join Date: Mar 2017 Posts: 75 Rep Power: 9	Hello, I know the reply is late, but it may help someone in future. I also faced this issue recently. The reason is that there was a bug and this was resolved already on Git. Check the report: https://bugs.openfoam.org/view.php?id=3776 Resolved on Git: https://github.com/OpenFOAM/OpenFOAM...10f36e0e08a996 However, for people who simply download the compiled OpenFOAM (pack) from the website this bug fix is not incorporated. This is because it is still not updated there. The solution is to clone the latest version from Git(https://github.com/OpenFOAM/OpenFOAM-9) and you have to compile the code from source (https://openfoam.org/download/source/) Thanks