关键词: 羽流;喷气排气

Abstract: Present and future spacecrafts which require jets for orbit adjustment and/or altitude control are always effected by the exhaust plume of the jets.An approximate analysis and corresponding computer program for rapid assessment of effects of plume far from the nozzle exit on spacecraft is discassed in this paper.A source flow model incorporate with the characteristics of the exhaust gas and the nozzle is used in the analysis. After having determined the plume field,the disturbance torques and thrust loss due to plume impingement can be estimated and then, put into the final design. The validation of this method is verified through a numerical example of a satellite model.

Key words: Plume;Jet exhaust