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http://dx.doi.org/10.6108/KSPE.2020.24.3.001

Experimental Investigation on Combustion Characteristics of Liquid Kerosene and Gelled Kerosene Using Shear Coaxial Injector  

Han, Seongjoo (Center for Reliability Engineering in Mechanical and Aerospace Industry, Korea Aerospace University)
Moon, Heejang (School of Mechanical and Aerospace Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.24, no.3, 2020 , pp. 1-11 More about this Journal
Abstract
In this study, a hot-firing test of a lab-scale gel rocket motor using liquid kerosene and gelled kerosene as fuel was performed in order to analyze the discrepancy of the static and dynamic pressure between the two fuels. The static pressure, characteristic velocity, and characteristic velocity efficiency of the liquid kerosene and gelled kerosene did not show any significant difference. However, in the case of dynamic pressure characteristics, the pressure oscillation amplitude in a specific high frequency region of the gelled kerosene demonstrated a significantly higher amplitude than liquid kerosene case. This is considered to be the effect of an intrinsic combustion mechanism of the gel propellant, and it can be postulated that this may act as a dominant factor influencing the high frequency combustion instability of the gel rocket motor.
Keywords
Gel Propellant; Liquid Kerosene; Gelled Kerosene; Combustion Characteristic; Shear Coaxial Injector;
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Times Cited By KSCI : 1  (Citation Analysis)
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