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February 20, 2012, 22:33 |
2D LES in FLUENT for a turbulent jet
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#1 |
New Member
CFD User
Join Date: Feb 2012
Posts: 18
Rep Power: 14 |
Can someone please help with the Fluent setting required to perform 2D LES of a turbulent jet at a velocity of 10m/s.
1) My domain size is 1.4 x 2.5 m and size of the inlet is 0.1m built in GAMBIT 2) Boundary conditions are inlet as velocity inlet Side walls as pressure outlets Bottom walls as wall Top wall (Outlet) as pressure Outlet 3) I am using a pressure based, transient, planar solver 4) Smogrinsky-Lilly Model with default settings. 5) Material is air 6) Under boundary conditions of the velocity inlet a setting of spectral synthesizer is used with turbulent intensity of 5 and hydraulic diameter as 0.1 7) Soultion Methods: Least Square Cell Based, Standard Pressure, Bounded Central Differencing Momentum and Second Order Implicit for transient formulation 8) Solution Initialized from the Inlet. 9) Time step settings: Size 0.001 No. of time steps: 1000 No. of iteration/time step: 1000 Can someone please point out to me where I am going wrong or what could be suggested for getting the correct flow.. Thanks |
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November 14, 2012, 03:33 |
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#2 |
New Member
Emil Baric
Join Date: May 2012
Location: Graz. Austria
Posts: 12
Rep Power: 13 |
Are you sure you want to do 2D LES? Because you are surely killing a part of physics by doing that. I know it is not much help but just re-consider
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November 14, 2012, 03:44 |
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#3 |
Senior Member
Philipp
Join Date: Jun 2011
Location: Germany
Posts: 1,297
Rep Power: 26 |
This is true. You can not do LES in 2d. But emil, why do you reply such an old thread?
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November 14, 2012, 04:34 |
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#4 |
New Member
Emil Baric
Join Date: May 2012
Location: Graz. Austria
Posts: 12
Rep Power: 13 |
Sorry did not look at the date. my mistake
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2d les of turbulent jet, need desperate help! |
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