Stagnation Temperature
Stagnation Temperature :
(Comb) The temperature obtained on a surface that obstructs a gas flow and brings it to rest. For low-velocity flows the difference between local gas temperature and stagnation temperature is small, typically less than 0. 01°C, but for supersonic flows it can be very large, even as much as 10,000°C for mach numbers exceeding 20. The difference between local gas temperature and stagnation temperature is the kinetic energy of flow of the gas, which increases guadratically with gas velocity
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