Cell Zone Generation

snappyHexMesh, meshing, cell zone generation, feature edges

Particular regions in a mesh could require unique properties such as the modeling of porosities or source terms. Therefore, cell zones have to be used in OpenFOAM®. Tobias shows in this tutorial how snappyHexMesh can be used to define such zones during the meshing stage directly. Based on the snappyHexMeshDict set-up, different quality levels regarding refinement and zone representation can be achieved. Especially the influence of the »featureEdge« feature is demonstrated in the training case. In the snappyHexMesh dictionary different cell zones are set to be created inside the mesh. The correct approximation of the shape design can be relevant in some investigations.

Image: Single cell zones inside the mesh

Published under the GNU General Public License 3

Over the last ten years, Tobias tried to publish a wide range of different materials related to OpenFOAM® and CFD. You know it much better than he does if the content is worth to be supported. If you want to thank Tobias for the work he did, feel free to tell the community your opinion about the work Tobias Holzmann is doing or you can email your thoughts directly to »This email address is being protected from spambots. You need JavaScript enabled to view it.«. Keep in mind that the work that was done here took much time, and it is not self-evident that Tobias Holzmann shares all his work, knowledge, and attitude for free and keep the data up to date. Hosting the material, updating the data, and keeping up interesting work for the community does take much time and also money. Supporting Tobias is greatly welcomed and can be done easily by donating any amount you would like to give to support his projects shared on his website.

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The available OpenFOAM® training cases are tested and built for different OpenFOAM® versions (not distributions) on a Linux machine. During the tests, only the OpenFOAM Foundation version of OpenFOAM® was used. Furthermore, the following software packages are required for most of the training cases: Salome®, ParaView®, and for optimization tasks, one also needs the open-source software DAKOTA®. The OpenFOAM® cases might work with the ESI version of OpenFOAM® but it is not supported. For the OpenFOAM® extend project, the training cases will probably not work as the code diverged too much. Additionally, there is no support for Windows-based and MAC-based OpenFOAM® versions.

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— cellZoneGeneration-4.tar.gz