aerodynamic heating

The heating of a body produced by passage of air or other gases over the body. It is caused by friction and compression processes and is significant chiefly at high speeds. The increase in surface temperature is approximately proportional to the square of speed. This heating is prominent at supersonic speeds. The rise in temperature is the maximum at a point where the gaseous mass comes to rest on the surface. The aircraft skin temperature is about 120°C at Mach 2 and about 315°C at Mach 3, and it can rise to above 3000°C at hypersonic speeds.

Aviation dictionary. 2014.

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