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Forum: Main CFD Forum

November 9, 2011, 11:32

Replies: 6

Modelling of infinite cylinder

Views: 1,969

Posted By cfdnewbie

that's a very broad question. Just the basics:...

that's a very broad question. Just the basics: RANS assumes that your mean flow is steady, and models the lumped effect (dissipation) of turbulence. Also, RANS works not to well for separated flows...

Forum: Main CFD Forum

November 7, 2011, 15:20

Replies: 6

Modelling of infinite cylinder

Views: 1,969

Posted By cfdnewbie

Yes, in a way, RANS is the only method in which...

Yes, in a way, RANS is the only method in which periodic BCs work without any limitations!

Good luck!

Forum: Main CFD Forum

November 6, 2011, 17:07

Replies: 6

Modelling of infinite cylinder

Views: 1,969

Posted By cfdnewbie

there are no stupid questions :) Just use...

there are no stupid questions :)

Just use periodic bcs in the z-direction, that should do the trick. what kind of turbulence modelling are you doing? LES?

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