# How to combine geometries?

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 December 4, 2014, 08:57 How to combine geometries? #1 New Member   Alex Join Date: Nov 2014 Posts: 4 Rep Power: 4 Hello Foamers, at he moment I'm working on my bachelor-thesis in mechanical engineering. My project is about a childrens water play area for a science-center, where I try to reconstruct the real streaming with openFOAM as good as possible. I'm doing a multiphase simulation (water/air) using interFoam/STLInterFoam with komegaSST. You can imagine the geometry as a simple rectangular channel with objects like Penstocks and weirs built in it. At the moment I got stuck and can't even find anything about my problem in literature, so i hope anyone of you guys can give me a tip Here are some pictures of the reality-case and the Mesh: The exhibit has very large dimensions (up to 10 meters long), but there are also very fine elements, which means, that the size of my mesh gets too big to run a simulation. My idea was, to cut the geometry in a few pieces (with CAD / or blockMesh) and simulate each one after another. The calculated results for an overlaping block or the outlet patch schould be set as initial conditions for the following part. The first part, ist the most complex, with Penstocks. It has about 3 million cells, the simulation works very well an stable, but i don't know how to continue... mapFields? Could anybody help me? Thanks a lot! Greetings Alex

 December 15, 2014, 04:06 #2 Senior Member     Tobias Holzmann Join Date: Oct 2010 Location: Leoben (Austria) Posts: 1,548 Blog Entries: 6 Rep Power: 27 I think is already solved __________________ Best regards, Tobias Holzmann Some interesting OpenFOAM tutorials, publications and videos on www.Holzmann-cfd.de OpenFOAM Beginners should check out the new wiki on wiki.openfoam.com A list of some active OpenFOAM contributers can be found »here« A book about the basics of »Mathematics, Numerics, Derivations and OpenFOAM« can be found on www.Holzmann-cfd.de

 Tags combine, interfoam, large geometry, multiphase

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