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December 19, 2002, 08:47 |
wall at the exit
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#1 |
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Hello people !
My geometry is a diffuser whose section is circular at the inlet and is rectangular at the exit. The angle of the diffuser is large so there is separation. To model this and keep an Outlet boundary condition at the exit, I have extended the duct by 10 diameters at the exit. But it says that it must add a wall at the outlet to prevent flow to flow in through the outlet. So I added 3 diameters more at the outlet, and I got the same problem after 4 iterarions. Is there someone who would have another suggestion to solve this problem ? Thank you very much and happy Christmas everybody ! regards Olivier |
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