PPRuNe Forums - View Single Post - Compressibility error vs compressibility effects..
Old 5th Sep 2012, 09:43
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Oktas8
 
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would I be correct
No.

Aerodynamic behaviour depends on EAS (dynamic pressure), Mach Number and Reynolds Number (scale effect). Change any one of those significantly, and the answers change significantly too.

An example: at low subsonic speeds, when air decelerates it increases in static pressure. Bernoulli, and so on. However at supersonic speeds, as air decelerates the static pressure increases. So the loads are very different.
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