Sliding Mesh

fardin.sh · July 9, 2023, 15:35

Hello everybody, I have two domains as shown in pic. The Square one is constant domain (not moving) but the inner square is rorating and there should be a connection between these two domains.

Link

Can any body help me out?

ghorrocks · July 9, 2023, 18:45

There is no image on your post. See this FAQ on how to post images: https://www.cfd-online.com/Wiki/Ansy...n_the_forum.3F

But I think I know the answer to your question anyway. To connect two mesh regions which slide (translate) relative to each other you should use a GGI, set to transient rotor stator. That will resolve the interface correctly from fully shut, partial open to fully open.

fardin.sh · July 10, 2023, 12:48

Quote:

Originally Posted by ghorrocks

There is no image on your post. See this FAQ on how to post images: https://www.cfd-online.com/Wiki/Ansy...n_the_forum.3F

But I think I know the answer to your question anyway. To connect two mesh regions which slide (translate) relative to each other you should use a GGI, set to transient rotor stator. That will resolve the interface correctly from fully shut, partial open to fully open.

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Fixed. Please look again.

ghorrocks · July 10, 2023, 19:28

Does the inner block do a circular motion, keeping its outer edge as an interface to the outer block?

If so then this is easily done using a rotating frame of reference for the inner block, and joined to the outer block with a GGI set to transient rotor-stator.

The CFX tutorials on turbomachinery will show you how to set these simulations up.

July 9, 2023, 18:45		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	There is no image on your post. See this FAQ on how to post images: https://www.cfd-online.com/Wiki/Ansy...n_the_forum.3F But I think I know the answer to your question anyway. To connect two mesh regions which slide (translate) relative to each other you should use a GGI, set to transient rotor stator. That will resolve the interface correctly from fully shut, partial open to fully open. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

July 10, 2023, 19:28		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Does the inner block do a circular motion, keeping its outer edge as an interface to the outer block? If so then this is easily done using a rotating frame of reference for the inner block, and joined to the outer block with a GGI set to transient rotor-stator. The CFX tutorials on turbomachinery will show you how to set these simulations up. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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