Simple question about a Rotating Wall

Maralady · May 14, 2013, 20:02

Hello, imagine a hollow cylinder (3D), the outer wall is stationary and the inner wall is rotating, my question is: Is that the only information that fluent needs?? It just need to set up that the inner wall is rotating about an axis, do I have to use MRF for this? I am not 100% how this works so any reference material will be appreciated.

A CFD free user · May 15, 2013, 16:17

You can use either SRF or MRF for this purpose. In both approaches, the walls are stationary and the fluid between them rotates. Have a look at the SRF and MRE pertinent concepts in fluent user guide. By the way, fluent tutorial regarding granular Eulerian model is a stirred tank which can help you to handle your problem as well. Have a look at it too.

Maralady · May 15, 2013, 22:42

I am doing some minors experiments, and yes, I just need to say that the wall is moving, It recognizes that the fluid volume must move with the wall, thanks anyway for your answer

May 14, 2013, 20:02	Simple question about a Rotating Wall	#1
Maralady Member Arthur Loginow Join Date: Aug 2012 Posts: 99 Rep Power: 13	Hello, imagine a hollow cylinder (3D), the outer wall is stationary and the inner wall is rotating, my question is: Is that the only information that fluent needs?? It just need to set up that the inner wall is rotating about an axis, do I have to use MRF for this? I am not 100% how this works so any reference material will be appreciated.

May 15, 2013, 16:17		#2
A CFD free user Senior Member A-A Azarafza Join Date: Jan 2013 Posts: 226 Rep Power: 14	You can use either SRF or MRF for this purpose. In both approaches, the walls are stationary and the fluid between them rotates. Have a look at the SRF and MRE pertinent concepts in fluent user guide. By the way, fluent tutorial regarding granular Eulerian model is a stirred tank which can help you to handle your problem as well. Have a look at it too. __________________ Regard yours

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May 15, 2013, 22:42		#3
Maralady Member Arthur Loginow Join Date: Aug 2012 Posts: 99 Rep Power: 13	I am doing some minors experiments, and yes, I just need to say that the wall is moving, It recognizes that the fluid volume must move with the wall, thanks anyway for your answer