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http://dx.doi.org/10.6108/KSPE.2018.22.1.045

Effect of Fuel Equivalence Ratio on Scramjet-to-Ramjet Mode Transition  

Ha, Jeong Ho (Department of Mechanical Engineering, Andong National University)
Yoon, Youngbin (Department of Mechanical and Aerospace Engineering, Seoul National University)
Ladeinde, Foluso (Department of Mechanical Engineering, The State University of New York)
Kim, Tae Ho (Department of Mechanical Engineering, Andong National University)
Kim, Heuy Dong (Department of Mechanical Engineering, Andong National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.22, no.1, 2018 , pp. 45-51 More about this Journal
Abstract
The generation mechanism of NAR is not yet understood. In the present study, an in-depth analysis of the computational results previously obtained by the authors is conducted to investigate the flow mechanism responsible for NAR. A theoretical analysis has also been performed to understand the gas dynamic features during transition from scramjet to ramjet mode. It is known that there exists a critical value of the fuel equivalence ratio at which the flow states at the inlet of isolator remain unchanged. An increase in the equivalence ratio over the critical value leads to a sudden change in the static pressure and the Mach number at the inlet of the isolator, which is responsible for the generation of NAR.
Keywords
Scramjet Engine; Dual Mode Ramjet; Mode Transition; Equivalence Ratio; Gas Dynamics;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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