Aerodynamic heating
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Aerodynamic heating is the heating of a solid body produced by the passage of fluid (such as air) over the body. The heating is caused by friction and by compression processes, significant chiefly at high speeds.
Experiments on aerodynamic heating are done in a shock tube in which a shock is made to travel by rupturing of a diaphragm separating of high pressure and low pressure side. This helps in checking the effect of adverse increases in temperature on different materials, and to check whether theres some reaction on it. Even aerodynamic heating is a topic of great concern in re-entry vehicles where, due to great friction at high velocity, there's heating at the surface. To prevent which these vehicles are given blunt shapes to produce bow shock. As a result most of the heat is dissipated to surrounding air.
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