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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: sbaffini

Forum: Main CFD Forum November 19, 2012, 16:13

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini Sorry, forget about L, i don't know where did it... Sorry, forget about L, i don't know where did it come from... i meant AR=W/H. The viscosity is what i called mu. The periodicity has to be set via Text User Interface (yes, between inlet and...

Forum: Main CFD Forum November 19, 2012, 04:42

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini The parameters i used for the rectangular channel... The parameters i used for the rectangular channel (H heigth of the channel, W span of the channel, AR=W/L) are: rho=1 mu = 1/Re_tau_H/2 H = 1 W = AR * H

Forum: Main CFD Forum September 30, 2012, 16:54

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini It depends on which of the two you are referring... It depends on which of the two you are referring to. For Gavrilakis, the reference cited by Filippo is indeed a good one (all you need to know is in the paper); also, the one of gavrilakis is...

Forum: Main CFD Forum July 5, 2012, 07:54

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini Indeed, i'm now considering the work cited... Indeed, i'm now considering the work cited therein (Gavrilakis) as a reference for the resolution. Still, i can't use it for comparisons with LES as the Re_tau is pretty low.

Forum: Main CFD Forum July 4, 2012, 17:32

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini That is exactly what i was arguing, you... That is exactly what i was arguing, you understood correctly. Of course i don't know where the dissipation range should be in your same way. But it being at scales with delta+ around 100 does not...

Forum: Main CFD Forum July 4, 2012, 16:39

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini Just in case someone esle want to jump in, we are... Just in case someone esle want to jump in, we are talking about this work: http://www.cfmbyexample.com/resources/JFM_Duct.pdf

Forum: Main CFD Forum July 4, 2012, 16:33

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini Which is what i'm saying, it is almost 1.2. I'm... Which is what i'm saying, it is almost 1.2. I'm saying this because i tested the grid stretching described in the paper with the parameter used by them, also there are no actual points in the graph,...

Forum: Main CFD Forum July 4, 2012, 16:08

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini Yes but, as i said, they use a 5TH ORDER UPWIND... Yes but, as i said, they use a 5TH ORDER UPWIND scheme for the convective terms and the grid spacings in wall units are (x: streamwise, y-z:duct section): dx+ = 40 (!!!!!!!!!!!!!!!!!!!!!!) ...

Forum: Main CFD Forum July 4, 2012, 14:33

Replies: 23 DNS of square duct at Re_tau = 600 Views: 3,573 Posted By sbaffini DNS of square duct at Re_tau = 600 Dear all, i'd like to have some opinions about a not very recent work which i was trying to use for comparisons with LES. I'm referring to the DNS data of Huser and Biringen for the turbulent...

Showing results 1 to 9 of 9

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