How to write UDF for moving sesh
 

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;

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!

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

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?