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-   -   Free jet B.C. (http://www.cfd-online.com/Forums/main/15549-free-jet-b-c.html)

shuo August 10, 2008 03:46

Free jet B.C.
 
I am simulating a Free jet using a domain 20 diameters*20 diameters (300 x 300 pts). The Euler equations are solved in r_z coordinates with symmetry imposed on the jet centerline. The simulation is started with jet being issued from a convergent nozzle. (The nozzle exit is a fixed boundary condition) I use the non-reflective boundary condition proposed by Thompson. It seems when the jet goes through the boundary reflections are generated. How can i overcome this?

Thanks Shuo


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