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JOURNAL OF SPACECRAFT AND ROCKETS Vol. 41, No. 4, JulyAugust 2004
 

Summary: JOURNAL OF SPACECRAFT AND ROCKETS
Vol. 41, No. 4, July­August 2004
Modeling of Chemically Reacting Flows
from a Side Jet at High Altitudes
S. F. Gimelshein,
D. A. Levin,
and A. A. Alexeenko
Pennsylvania State University, University Park, Pennsylvania 16802
The interaction of a jet from a 60-lbf (267-N) thruster positioned on the side of a small rocket, with the rarefied
atmosphere between altitudes of 80 to 160 km, is studied numerically. A multistep approach is employed, which
combines the successive computation of the flow inside the thruster using a Navier­Stokes solver, the axisymmetric
plume core flow, and chemically reacting three-dimensional plume-atmosphere interaction using the direct sim-
ulation Monte Carlo method, and obtains the UV radiation fields based on the flow solution. The impact of the
boundary layer inside the nozzle as well as the rocket speed (5­8 km/s) and flight altitude (80­160 km) on the
plume-atmosphere interaction is examined.
I. Introduction
ATMOSPHERIC interceptor (AI) vehicles currently being de-
veloped use divert and attitude reaction control systems (RCS)
to perform quick maneuvers during flight. The forward and aft RCS
engines provide the thrust for attitude (rotational) maneuvers (pitch,

  

Source: Alexeenko, Alina - School of Aeronautics and Astronautics, Purdue University

 

Collections: Engineering