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stressComponents utility in LES calculations

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Old   February 25, 2010, 13:25
Default stressComponents utility in LES calculations
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Vesselin Krastev
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Hi everybody,
I'm working on a 2d LES simulation on a channel flow. The model I use is the oneEqEddy, with the same settings of the pitzDaily LES pisoFoam tutorial. So, the matter I wish to investigate is about the meaning of the stressComponents utility output in a case such this: are these components referred to the Smagorinski stress tensor (TAUsgs)? If they not, what actually do they represent in a LES simulation?

Thank you in advance
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Old   February 25, 2010, 13:44
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Old   February 26, 2010, 05:19
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??????????
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Old   April 12, 2011, 12:57
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David Aljure
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In its source code, stressComponents is defined as:

laminarTransport.nu()*2*dev(symm(fvc::grad(U)))

I think it's not related to sgs stresses, its the deviatoric stress components.
(1 year late :^P)
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