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http://dx.doi.org/10.20910/JASE.2021.15.3.87

Development and Performance Analysis of Gas Generator with Plunger-type Flow Control Valve for Ducted Rocket : Part II  

Han, Seongjoo (INNOSPACE Co., Ltd.)
Lee, Jungpyo (University of Brasilia)
Cho, Sungbong (INNOSPACE Co., Ltd.)
Khil, Taeock (LIGNex1 Co., Ltd.)
Kim, Minkyum (LIGNex1 Co., Ltd.)
Publication Information
Journal of Aerospace System Engineering / v.15, no.3, 2021 , pp. 87-92 More about this Journal
Abstract
In this study, a numerical approach was utilized to observe the phenomena in the ground combustion test of a gas generator for a ducted rocket with a plunger-type flow control device. The design factors were also identified through the analysis. It was observed that the pressure increase without the adhesion of the combustion product at the discharge pipe was quite similar to the analysis assuming a cone-shaped erosive burning effect. The pressure increase in most cases was similar to the analysis results when assuming the change in discharge pipe area due to the adhesion of combustion products. Moreover, it was also established that for a given grain shape and discharge flow area, the effect of the adhesion of combustion products has a significant effect on the combustion chamber pressure for cases over n=0.45.
Keywords
Ducted Rocket; Gas Generator; Flow Control Valve; Plunger-type; Fuel-rich; Adhesion;
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