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- Brett Cruden (AMA Inc/NASA Ames)
Future space missions, such as planned asteroid sample return missions or interplanetary missions such as return from Mars, will involve entry speeds from 13 to 15km/s. While current hyperbolic Earth re-entry conditions such as Apollo, Hayabusa, and Stardust all featured some degree of radiative heating, a 15 km/s Earth entry will cross the threshold into the region where radiative heat flux...
The atmospheric entry of spacecraft is characterized by very high entry speeds and the formation of a bow shock in front of the blunt body. The sudden deceleration of the vehicle converts the kinetic energy of the vehicle into thermal energy of the gas which gets dissipated in the form of convective and radiative heat transfer. The gas species trapped inside the shock layer undergo a very high...