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passive scaler transport in LES

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Old   March 13, 2010, 13:44
Default passive scaler transport in LES
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mohammad
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Hi
How could I apply energy equation in LES in Openfoam? I am going to simulate a channel flow.
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Old   March 15, 2010, 09:24
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Jiang
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Dear mohammad,

you should use buoyantBoussinesqPisoFoam, please see:
buoyantBoussinesqPisoFoam: A detailed explanation

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.
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Old   March 15, 2010, 09:47
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thanks for your help.
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Old   March 17, 2010, 22:45
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Alberto Passalacqua
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Quote:
Originally Posted by turbulent man View Post
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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