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Old   October 20, 2003, 00:31
Default I need help for cylindrical coordinate in LES
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Hi everyone, could anyone tell me what are the equations (IN CYLINDRICAL COORDINATE, r, teta, z)used in Large Eddy Simulation in Fluent 6. Or where can I find those equations? (I need those equations to make my final report).

thank you very much !
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Old   October 23, 2003, 09:09
Default Re: I need help for cylindrical coordinate in LES
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Hi Agus,

It seems your post did not trigger any answer. You could try post it in the Fluent forum.

I may give you a clue. Usually, a multi-purpose code such as Fluent relies on finite-volume approach. When using this approach, one can integrate the equations on a wedge (or an axisymetrical domain) using NS equations expressed in a cartesien coordinate system.

However, for demonstration purpose, you can still apply the LES filter to the cylindrical NS equations. When doing this, you should find the classical unclosed terms overtilde(u_i u_j) that are modeled using the LES subgrid scale model. The cylindrical NS equations can be found in basic CFD textbook.

Hoppe this help. Julien
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