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Moussa Diarra April 21, 2000 11:19

Complex boundary conditions??
Hi Can anybody help me? i'am trying to simulate Air Flow between two independant rotating disks and i have a problem to define the boundary conditions (there is no inlet/outlet boundaries).The only condition i know is The static pressure (atmosphere 1.013e5 Pa) is present everywhere before the rotor disk starts. All ideas are welcome.


tobbe April 27, 2000 08:55

Re: Complex boundary conditions??
If the disks are perfectly circular and symmetric the easiest thing is to put a cylindrical coordinate system in the center of each disk and then use a moving wall boundary at each disk utilizing the coordinate systems just created. The walls will then be seen as rotating even if the actual mesh is fixed.

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