Aerodynamics of Blunt Nosed Bodies
Keywords:
Blunt Nosed Bodies, Aerodynamics, Fluid DynamicsAbstract
Blunt front side bodies are unpropitious for the supersonic flow, but however, they cannot be avoided in some applications. In this case an extremely strong shock wave, as it is well known, appears in front of the body, causing an important increase of both pressure and temperature in the vicinity of the stagnation point. An intensive drag force of the body is direct result of this shock wave. Mounting a spike on the rounded nose of a blunt body moving supersonically can significantly reduce the drag force. In this way, instead of one strong shock in frontal zone, appears a system of conical waves, so that the driving force, and consequently the fuel consumption, as well as the aerodynamic heating.
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