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vortex entering rotating domain

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Old   July 21, 2015, 15:22
Default vortex entering rotating domain
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Dear Fluent users,
I have a case with stationary and roataing domains. A vortex starts from the stationary and enters the rotating domain. The vortex tube follows the free stream direction in the stationary domain, but it starts rotating in the opposite direction of the moving referecne frame (the vorticity isosurface is shown in the attachment). Does anybody has any idea why this happens?
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File Type: jpg vortex_enter_rotating domain.jpg (19.7 KB, 9 views)
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multiple reference frames

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