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Simulation of Separation Mechanism by Modeling a Propellant Actuated Device  

Oh, Seok-Jin (국방과학연구소 1기술연구본부 6부)
Lee, Do-Hyung (국방과학연구소 1기술연구본부 6부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.14, no.6, 2010 , pp. 45-52 More about this Journal
Abstract
This paper presents a mathematical-physical model to predict the performance of a gas pusher used as a separation system powered by a gas generator. A quasi-steady model is used in order to aid ballistic analysis for a propellant actuated device(PAD). The empirical coefficients of heat loss and friction were determined from experiments. The analytical approach of combustion, flow and movement of a piston inside the chamber of the PAD, consisted of a gas generator and a gas pusher, was simulated by numerical method based on the grain configuration design of the gas generator. The prediction method developed can be usefully applied to the design of separation mechanism systems.
Keywords
Quasi-Steady Model; Gas Generator; Heat Loss;
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Times Cited By KSCI : 1  (Citation Analysis)
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