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-   -   Want to make clear about periodic BCs (http://www.cfd-online.com/Forums/main/5497-want-make-clear-about-periodic-bcs.html)

babyface December 3, 2002 21:07

Want to make clear about periodic BCs
 
What is the mathematical description of periodic BCs, especially in flow direction. Assume set U(inlet)=U(outlet), how can I input the inlet velocity at the first time step? What is the physical meaning of it?

Thanks


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