RSM Vs SST

March 7, 2007, 10:51

I have a mesh I am using with SST model. It has a Y+ below 2. Can I use the same mesh with an RSM model for comparision? But what about wall treatment? Y+ seems to be low, so I cannot use a wall function approach. Is it acceptable to use such a mesh of low Y+ with RSM?

March 7, 2007, 11:53

Dear Omer,

Try using the BSL Reynolds Stress model.. That uses the omega equation similar to SST.. The mesh requirements should be similar..

Opaque

March 7, 2007, 17:30

Thanx a heap Opaque! Doing that right away. Just one more query though, isn't BSL Reynolds Stress Model a RSM-omega model rather than a variant of the simple RSM ?

March 14, 2007, 21:49

It works like SST so: RSM omega in the b.l. RSM-epsilon away from the b.l.

March 15, 2007, 01:12

It makes perfect sense to me now, that RSM omega is a good idea, I can go ahead and use it now.

Plenty thanx Hek and Opaq

March 7, 2007, 10:51	RSM Vs SST	#1
Omer Guest Posts: n/a	I have a mesh I am using with SST model. It has a Y+ below 2. Can I use the same mesh with an RSM model for comparision? But what about wall treatment? Y+ seems to be low, so I cannot use a wall function approach. Is it acceptable to use such a mesh of low Y+ with RSM?

March 7, 2007, 11:53	Re: RSM Vs SST	#2
opaque Guest Posts: n/a	Dear Omer, Try using the BSL Reynolds Stress model.. That uses the omega equation similar to SST.. The mesh requirements should be similar.. Opaque

March 7, 2007, 17:30	Re: RSM Vs SST	#3
Omer Guest Posts: n/a	Thanx a heap Opaque! Doing that right away. Just one more query though, isn't BSL Reynolds Stress Model a RSM-omega model rather than a variant of the simple RSM ?

March 14, 2007, 21:49	Re: RSM Vs SST	#4
HekLeR Guest Posts: n/a	It works like SST so: RSM omega in the b.l. RSM-epsilon away from the b.l.

March 15, 2007, 01:12	Re: RSM Vs SST	#5
Omer Guest Posts: n/a	It makes perfect sense to me now, that RSM omega is a good idea, I can go ahead and use it now. Plenty thanx Hek and Opaq

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