# 2D LES in FLUENT for a turbulent jet

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

 February 20, 2012, 22:33 2D LES in FLUENT for a turbulent jet #1 New Member   CFD User Join Date: Feb 2012 Posts: 18 Rep Power: 6 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

 November 14, 2012, 03:33 #2 New Member   Emil Baric Join Date: May 2012 Location: Graz. Austria Posts: 12 Rep Power: 6 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

 November 14, 2012, 03:44 #3 Senior Member     Philipp Join Date: Jun 2011 Location: Germany Posts: 1,297 Rep Power: 19 This is true. You can not do LES in 2d. But emil, why do you reply such an old thread?

 November 14, 2012, 04:34 #4 New Member   Emil Baric Join Date: May 2012 Location: Graz. Austria Posts: 12 Rep Power: 6 Sorry did not look at the date. my mistake

 Tags 2d les of turbulent jet, need desperate help!

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post vishwa OpenFOAM Running, Solving & CFD 8 December 7, 2010 19:11 ivanbuz FLUENT 0 November 1, 2009 17:36 taedeneo Main CFD Forum 2 May 6, 2008 13:53 ramo Main CFD Forum 1 September 4, 2005 07:43 Christian Main CFD Forum 0 November 19, 2003 06:47

All times are GMT -4. The time now is 21:30.

 Contact Us - CFD Online - Top