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Beginner: How to simulate a pneumatic valve?

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Old   August 5, 2009, 13:48
Question Beginner: How to simulate a pneumatic valve?
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Matthias
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Hello,

I've got a vtk file of the empty space within a pneumatic valve. Is it possible to read this file into OpenFOAM to generate a mesh of it? And is there any tutorial how to simulate the flow of air through this valve?

My problems are very basic: I don't know how to set one part of the model as input of the air and the other as output. And I also don't know how to set the parameters like the pressure.

I looked for many tutorials but I can't find one that will help me to solve my problem. Can you tell me where I can find a tutorial or if it's possible how to make this simulation, please?

Regards, Matthias
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Old   August 8, 2009, 12:53
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Elvis
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1)read your vtkfile and convert it with vtkSTLWriter => write a small vtkconverterprogramm
2)study snappyhex http://www.tfd.chalmers.se/~hani/kur...ppyHexMesh.pdf =>from that, you have your valvegeom. for the cfd calculation
3) apply boundary condtion etc

long way to ;-)
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Old   August 8, 2009, 13:35
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read more about snappyhexmesh in the usersguide chapter 5.4
but what changes have to be made in the dictionary file for internal flows in don't know
go to http://www.cfd-online.com/Forums/ope...snappyhexmesh/ when you have written your converter maybe mevislab http://www.mevislab.de/ is helpful for you to speedup conversion
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