Mesh Quality Function Object

• This repository includes the meshQuality function object that can be used to write different mesh quality fields as volScalarFields or surfaceScalarFields. Thus, one can perform mesh quality analysis within Paraview.

• The function object is going to be added to the OpenFOAM Foundation dev line

Compilation

In order to use the function object, you have to do the following steps:

• Load your foam environment in your shell

cd $FOAM_SRC/functionObjects/field
git clone https://shor-ty@bitbucket.org/shor-ty/meshquality.git meshQuality
cd meshQuality

• Now load the version you need. Replace OpenFOAM-7.x by your version (use tab to show the versions for which this library is available)
• Until now, only version 7 of the OpenFOAM Foundation version is supported (master branch)
• If there are other versions available, you can checkout the other ones by using

git checkout <TAB><TAB>

• Additionally, you have to add the source file to the Make/files file

gedit ../Make/files

• Now add somewhere the line (preferably at the end of the file)

meshQuality/meshQuality.C

• And recompile the objectFunction library using

wmake libso

Usage

To use the function object, you can go to any OpenFOAM case (a mesh has to be available) and run:

postProcess -func meshQuality

If you get a message that the meshQuality dict is not found you have to create it manually. For that we first copy an existing one:

foamGet age

Now open the file (system/age) and change the type to meshQuality and remove the nCorr entry. Finally, rename the file

mv system/age system/meshQuality

Parameters

The function object writes different fields. One can adjust them by setting the following keywords into the meshQuality file. By default, all fields are written:

• writeCellVolume

• writeCellType

• writeCellNonOrthogonality

• writeCellSkewness

• writeFaceNonOrthogonality

• writeFaceSkewness

Contact

• If you have any questions: Tobias.Holzmann@Holzmann-cfd.com

• Website: https://Holzmann-cfd.com