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-   -   passive scaler transport in LES (http://www.cfd-online.com/Forums/openfoam/73655-passive-scaler-transport-les.html)

turbulent man March 13, 2010 13:44

passive scaler transport in LES
 
Hi
How could I apply energy equation in LES in Openfoam? I am going to simulate a channel flow.

panda60 March 15, 2010 09:24

Dear mohammad,

you should use buoyantBoussinesqPisoFoam, please see:
http://www.cfd-online.com/Forums/ope...planation.html

and
http://openfoamwiki.net/index.php/Bu...sinesqPisoFoam.

OpenFOAM's buoyantBoussinesqPisoFoam solver only can be used for RANS model, but you can change to both RANS and LES model.

turbulent man March 15, 2010 09:47

thanks for your help.

alberto March 17, 2010 22:45

Quote:

Originally Posted by turbulent man (Post 249829)
Hi
How could I apply energy equation in LES in Openfoam? I am going to simulate a channel flow.

You should use rhoPisoFoam as reference. buoyantBoussinesqPisoFoam makes the Boussinesq assumption, and you might not want that.

For a periodic channel flow you'll have to modify the code to be able to impose a constant pressure gradient or mass flow rate.

Best,


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