turbulent lodel at low Reynolds number

mayj · October 7, 2013, 02:08

Hi
Which turbulent models serve better in OBCs at low Reynolds number of 312? LES, K-Epsilon or DES? What's the major differences between these three models at this Reynolds number at 2D and 3D method?
Any suggestion would be most appreciated
Thanks

Lance · October 7, 2013, 03:35

I dont know what you mean with OBCs, but according to http://en.wikipedia.org/wiki/OBC it could mean Oceania Badminton Confederation , Oriental Bird Club, Osaka Broadcasting Corporation or something else.
However, a Re at 300 sounds laminar to me, so dont use a turbulence model. And CFX cannot do "true" 2D.

mayj · October 7, 2013, 04:10

Hi Lance
Thanks for your reply. OBCs stand for Oscillatory Baffled Columns (mixing columns). But it's nice to know what wiki can come up with.

October 7, 2013, 02:08	turbulent lodel at low Reynolds number	#1
mayj Member may Join Date: Jul 2013 Posts: 31 Rep Power: 13	Hi Which turbulent models serve better in OBCs at low Reynolds number of 312? LES, K-Epsilon or DES? What's the major differences between these three models at this Reynolds number at 2D and 3D method? Any suggestion would be most appreciated Thanks

October 7, 2013, 04:10	turbulent model at low Reynolds number	#3
mayj Member may Join Date: Jul 2013 Posts: 31 Rep Power: 13	Hi Lance Thanks for your reply. OBCs stand for Oscillatory Baffled Columns (mixing columns). But it's nice to know what wiki can come up with.

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October 7, 2013, 03:35		#2
Lance Senior Member Lance Join Date: Mar 2009 Posts: 669 Rep Power: 22	I dont know what you mean with OBCs, but according to http://en.wikipedia.org/wiki/OBC it could mean Oceania Badminton Confederation , Oriental Bird Club, Osaka Broadcasting Corporation or something else. However, a Re at 300 sounds laminar to me, so dont use a turbulence model. And CFX cannot do "true" 2D.