[andycong]

Because I am very new in CFD and Foam, now my thesis is about the CFD,so I want somebody's help.
Thanks

[fabianpk]

What do you mean? Do you want a finished LES simulation and look at the solution at each step? Or do you want someone to take you through what a solver for LES problems like coodles does?

If the case is the former, I suggest a tutorial (OpenFOAM/OpenFOAM-1.2/tutorials/oodles), if the case is the latter, I suggest a course in CFD, and THEN a course in turbulence and LES. Or you could read a book, I would recommend "Computational Methods for Fluid Dynamics" by Ferziger and Peric. Or the more basic, "An introduction to Computational Fluid Dynamics" by Versteeg and Malalasekera.

/Fabian

[vvqf]

Fabian has given very good suggestions.

in addition:
for LES solver, take a look at page U-85 in Foam UserGuide, there's short description.
OpenFOAM/OpenFOAM-1.2/tutorials/oodles - incompressible
OpenFOAM/OpenFOAM-1.2/tutorials/coodles - compressible

CFD - turbulence modeling - LES
"Turbulence Modeling for CFD" by DC Wilcox
free:
http://personalpages.manchester.ac.uk/staff/david.d.apsley/lectures/comphydr/ind ex.htm
http://www.tfd.chalmers.se/~lada/pos...ndium_turb.pdf

PS:
If you could state your problem clear and specific in the future, it would help the others give you better help.

Qiufang

[fabianpk]

Well, if someone should be promoting chalmers material, it's us who work here If you like the one above by Prof. Lars Davidson about turbulence models (simple k-epsilon and RSM models), go on and read the ones on LES on:

http://www.tfd.chalmers.se/doct/comp...ure_notes.html

/Fabian

[andycong]

Very Thanks, Now I will follow your suggestion.
Thanks again.
If some problems, please allow me to bother you again.