Hi Can fluent solve the 2d Flitered NS (Large Eddy Simulation) equations?

Also if fluent doesn't offer 2d LES capablitites can anyone sutggest a COMERCIAL code that does.

Thanks in advance

Yes, fluent can run the LES model in 2D. However, it doesn't make much sence to do this. LES = Large Eddy Simulation = resolving the large scale turbulent eddies. These large-scale turbulent eddies are 3D by nature and if you run 2D you will not resolve them. Hence, a 2D LES simulation is not going to produce anything physical. It is just a numerical exercise that you might want to do to debug your code or something.

Ok Thanks

[anil_samale]

Hi Jonhson,

As if you say running LES for 2D is just an numerical excersize then while soving flow over cylinder by LES Model gives different results than K-epsilon.. I means LES model gives close results...though large eddies are absent or 3d in nature....can you please give some idea of same. Since I am trying to solve flow over cylinder...

[pitamber.methia]

use command (rpsetvar 'les-2d? #t)
LES will come in models option
LES is used for axis-symmetric geometries only