Rule of thumb: MRF/Sliding mesh zone sizes

wilandlane · May 11, 2016, 12:32

I am looking for some literature on the MRF/Sliding mesh zone size requirements. I haven't found anything conclusive, has anyone come across some literature on this subject? Intuitively, I expect the smallest possible region to be the best option (e.g., a cylinder that just encapsulates the extremes of an impeller). But I haven't found supporting evidence.

Metikurke · December 20, 2018, 09:51

Dear Wilandlane,

It's an old thread but interesting one. I am simulating a propeller and I would like to know how big should be the MRF region. I have now different results from different MRF regions and as the smaller it gets, the more non-physical solution I am getting. It would be great if you or anyone share their experience thank you.

Please go through the following article, where the author have faced the same problem.

http://www.kdm.p.lodz.pl/articles/2016/4/20_4_15.pdf

May 11, 2016, 12:32	Rule of thumb: MRF/Sliding mesh zone sizes	#1
wilandlane New Member William Join Date: Apr 2013 Posts: 11 Rep Power: 13	I am looking for some literature on the MRF/Sliding mesh zone size requirements. I haven't found anything conclusive, has anyone come across some literature on this subject? Intuitively, I expect the smallest possible region to be the best option (e.g., a cylinder that just encapsulates the extremes of an impeller). But I haven't found supporting evidence.

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December 20, 2018, 09:51		#2
Metikurke New Member Metikurke Join Date: May 2017 Posts: 21 Rep Power: 8	Dear Wilandlane, It's an old thread but interesting one. I am simulating a propeller and I would like to know how big should be the MRF region. I have now different results from different MRF regions and as the smaller it gets, the more non-physical solution I am getting. It would be great if you or anyone share their experience thank you. Please go through the following article, where the author have faced the same problem. http://www.kdm.p.lodz.pl/articles/2016/4/20_4_15.pdf