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-   -   Topology Change Tutorial (http://www.cfd-online.com/Forums/openfoam/105727-topology-change-tutorial.html)

Soheyl August 7, 2012 16:48

Topology Change Tutorial
 
1 Attachment(s)
I'm trying to model the flow between two objects that are passing each other. In the figure, the two squares move horizontally towards each other and then continue on their way. I want mesh layers to be added behind the moving blocks, so I believe this would be a dynamic mesh case with changing topology. Is it possible to model this using OF 2.1.1, and if so, is there any tutorials that I can use? I've gone through the pimpleDymFoam tutorials, but I believe there is not any tutorial with topology change.

https://www.dropbox.com/s/ys8rbsnj66mfprh/passing.bmp

wyldckat August 7, 2012 19:15

Greetings Soheyl,

For interDyMFoam you can find this very nice looking one: "multiphase/interDyMFoam/ras/damBreakWithObstacle"
Although the problem here is that it uses local refinement based on the interface field...

Best regards,
Bruno

mturcios777 August 7, 2012 19:42

Layer addition removal works in 1.6-ext, you can try the movingCone tutorial in $FOAM_TUTORIALS/incompressible/icoDyMFoam/movingConeTopo. If you want these two objects passing each other, you will need some kind of interface between their "tracks". Have a look at this report:

http://www.tfd.chalmers.se/~hani/kur...jerklundE3.pdf

You can't really separate dynamic meshes and programming in OpenFOAM, so good luck!


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