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Air comprehensibility at high speed car race

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April 17, 2014, 21:48	Air comprehensibility at high speed car race	#1
Boyko New Member Join Date: Apr 2014 Posts: 1 Rep Power: 0	Does anyone has experience or knowledge at what speed (Re-number based on average car height) the air compressibility start playing role in drag. liff- down-force?

April 18, 2014, 07:03		#2
lovecraft22 Senior Member lore Join Date: Mar 2010 Location: Italy Posts: 460 Rep Power: 18	Usually the flow is no more incompressible if M>0.3. I guess at that point you would have some effects due to compressibility.

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