INFLUENCE OF THE ESCAPE-SYSTEM PROPULSION ON THE FRONTAL DRAG OF A SPACECRAFT
V.I. Zapryagaev, I.N. Kavun, I.V. Menshchikova
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: spacecraft, emergency escape system, propulsion system, drag, shock wave, underexpanded jet
Abstract
The aerodynamic characteristics of a cone-shaped spacecraft model with and without an emergency escape system are compared. The freestream Mach number is M = 2. Jets issuing from the nozzles are shown to significantly affect the aerodynamic characteristics of the model. Compared with the cone-shaped model, the model with the escape system exhibits up to a 5.8-fold reduction in the drag coefficient.
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