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How to write UDF for moving sesh

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Old   October 20, 2015, 21:44
Default How to write UDF for moving sesh
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S. Morichika
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Hi All,
I have just started with moving mesh and I need to write a UDF for my model. I am simulating air flow in a straight pipe and my geometry has two parts. I have created a layer inside the geometry. I need to move the mesh inside the layer and the mesh movement will be opposite of the air flow. Can anyone tell me how can I do that.

Please see the attached image for clear idea.

Thank you very much for your help.

Regards,
saidul;
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File Type: jpg moving mesh.jpg (180.1 KB, 13 views)
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Old   December 2, 2015, 23:33
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zg8
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zg
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hi,I saw this post a minute ago.and I am also doing this work.Have you solved the problem?Looking forward to your reply.Thnak you!
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Old   December 6, 2015, 23:06
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Sorry mate, I am still trying to do that.......
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Old   December 7, 2015, 06:52
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mohsen
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Hi saidul

it's simple if your movement is along pipe axis, in fluent/cell zone condition, you could see "mesh motion" option and enter direction of motion.
but, why you want to move the mesh?
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