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**ZIZITOPER** · 04-07-2009, 06:02 AM

It's more to do with the high humidity than anything else. They are caused by high speed vortices that are shed by the rear wing. The vortex has a low core pressure which cools the air and so condensation occurs (in the right circumstances) and it's this water vapour that you see. A great form of flow visualisation.

04-07-2009, 06:02 AM	#7
ZIZITOPER Join Date Oct 2005 Posts 513 Senior Member	It's more to do with the high humidity than anything else. They are caused by high speed vortices that are shed by the rear wing. The vortex has a low core pressure which cools the air and so condensation occurs (in the right circumstances) and it's this water vapour that you see. A great form of flow visualisation.
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