SGS Model used by DES simulations

chi86 · March 10, 2018, 12:59

Hi,
does anyone know what SGS model is employed in the DES simulation in FLUENT. I cant find anything in the theory guide.

fanch33 · March 11, 2018, 10:12

Hi,

with DDES model, it can be shown by Under equilibrium turbulence conditions (production = dissipation), DDES models reduces to Smagorinsky sgs model. It is the case for SST DDES. For k-epsilon, I don't really know but I guess it is the same thing. You can find it in the SDES part of the theory guide 4.12.2 for the R18 version of Fluent.

François

March 10, 2018, 12:59	SGS Model used by DES simulations	#1
chi86 New Member christoph irrenfried Join Date: Feb 2014 Posts: 8 Rep Power: 12	Hi, does anyone know what SGS model is employed in the DES simulation in FLUENT. I cant find anything in the theory guide.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Water subcooled boiling	Attesz	CFX	7	January 5, 2013 03:32
Problems with Unsteady simulations using LRR Model in transientSimpleFoam	barath.ezhilan	OpenFOAM Running, Solving & CFD	1	July 25, 2009 13:58
DES model in FLUENT	Ken	FLUENT	2	May 5, 2007 08:07
Problem with DES model	mehul	FLUENT	0	April 12, 2006 07:59
DPM model w/ Wave model - errors in documentation	HS	FLUENT	0	April 12, 2006 04:37

March 11, 2018, 10:12		#2
fanch33 Member Join Date: Feb 2015 Posts: 32 Rep Power: 11	Hi, with DDES model, it can be shown by Under equilibrium turbulence conditions (production = dissipation), DDES models reduces to Smagorinsky sgs model. It is the case for SST DDES. For k-epsilon, I don't really know but I guess it is the same thing. You can find it in the SDES part of the theory guide 4.12.2 for the R18 version of Fluent. François