why tremendous amount of heat energy is produced when a spaceship Re e

1.	why tremendous amount of heat energy is produced when a spaceship Re enters the atmosphere
Answer» It’s usually assumed that the mechanism of heating in reentry is by friction(i.e. viscous drag in the atmosphere). In fact this is the predominant mechanism only at lower altitudes, as air density increases. During thefastest and hottest part of the descent, less familiar physics is in play. A reentering vehicle develops a very energetic pressure wave at its leadingsurfaces. The energy density is sufficient to cause atmospheric moleculesto dissociate, and their component atoms to become ionized. The vehiclethus descends in a superheated shroud of incandescent plasma. its due to speed and atmosphere they combine and generate heat

why tremendous amount of heat energy is produced when a spaceship Re enters the atmosphere

Answer»

It’s usually assumed that the mechanism of heating in reentry is by friction(i.e. viscous drag in the atmosphere). In fact this is the predominant mechanism only at lower altitudes, as air density increases. During thefastest and hottest part of the descent, less familiar physics is in play. A reentering vehicle develops a very energetic pressure wave at its leadingsurfaces. The energy density is sufficient to cause atmospheric moleculesto dissociate, and their component atoms to become ionized. The vehiclethus descends in a superheated shroud of incandescent plasma.

its due to speed and atmosphere they combine and generate heat

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