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http://dx.doi.org/10.20910/JASE.2018.12.5.8

Analysis Study of Liquid Apogee Engine Plume for Geostationary Satellite  

Lee, Chi Seong (Department of Aerospace Engineering, Sejong University)
Lee, Kyun Ho (Department of Aerospace Engineering, Sejong University)
Publication Information
Journal of Aerospace System Engineering / v.12, no.5, 2018 , pp. 8-15 More about this Journal
Abstract
The geostationary satellite uses a liquid apogee engine, to obtain a required velocity increment to enter a geostationary orbit. However, as the liquid apogee engine operates in the vacuum, a considerable disbursement of exhaust plume flow, from the liquid apogee engine can trigger a backflow. As this backflow may possibly collide with the satellite directly, it can cause adverse effects such as surface contamination, thermal load, and altitude disturbance, that can generate performance reduction of the geostationary satellite. So, this study investigated exhaust plume behavior of 400 N grade liquid apogee engine numerically. To analyze exhaust plume behavior in vacuum condition, the DSMC (Direct Simulation Monte Carlo) method based on Boltzmann equation is used. As a result, thermal fluid characteristics of exhaust plume such as temperature and number density, are observed.
Keywords
Liquid Apogee Engine(LAE); Bipropellant; Plume; Direct Simulation Monte Carlo(DSMC);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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