Overset Mesh in Vortex Induced Vibration

cactus · July 12, 2017, 17:08

Hi everybody,

I am using overset mesh to setup my model for Vortex Induced Vibration (VIV) analysis. When I run the setup there are abnormal displays in boundaries of overset mesh (as it is seen in the attached picture)! It seems there are some unusual interactions between boundaries and background mesh!!

Anybody has an idea how to solve it?

Many thanks in advance.

Attachment 57258

cwl · July 12, 2017, 20:07

The mesh might be not fine enough around the boundaries of the overset region.

cactus · July 12, 2017, 21:50

Thanks cwl!

You can see the mesh in the following picture.
I guess it is fine enough in the boundaries! What do you think?
Do you know there is any other options to simulate VIV for rigid cylinder in star CCM+?

July 12, 2017, 17:08	Overset Mesh in Vortex Induced Vibration	#1
cactus New Member Mohammad Join Date: Jul 2014 Posts: 2 Rep Power: 0	Hi everybody, I am using overset mesh to setup my model for Vortex Induced Vibration (VIV) analysis. When I run the setup there are abnormal displays in boundaries of overset mesh (as it is seen in the attached picture)! It seems there are some unusual interactions between boundaries and background mesh!! Anybody has an idea how to solve it? Many thanks in advance. Attachment 57258

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July 12, 2017, 20:07		#2
cwl Senior Member Chaotic Water Join Date: Jul 2012 Location: Elgrin Fau Posts: 437 Rep Power: 18	The mesh might be not fine enough around the boundaries of the overset region.

July 12, 2017, 21:50		#3
cactus New Member Mohammad Join Date: Jul 2014 Posts: 2 Rep Power: 0	Thanks cwl! You can see the mesh in the following picture. I guess it is fine enough in the boundaries! What do you think? Do you know there is any other options to simulate VIV for rigid cylinder in star CCM+?