How to write UDF for moving sesh

Saidul · October 20, 2015, 22:44

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;

zg8 · December 2, 2015, 23:33

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!

Saidul · December 6, 2015, 23:06

Sorry mate, I am still trying to do that.......

moabdi · December 7, 2015, 06:52

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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December 2, 2015, 23:33		#2
zg8 New Member zg Join Date: Dec 2015 Posts: 2 Rep Power: 0	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!

December 6, 2015, 23:06		#3
Saidul Member S. Morichika Join Date: Aug 2014 Posts: 62 Rep Power: 12	Sorry mate, I am still trying to do that.......

December 7, 2015, 06:52		#4
moabdi New Member mohsen Join Date: Jun 2015 Posts: 25 Rep Power: 11	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?