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http://dx.doi.org/10.5139/JKSAS.2021.49.11.909

Numerical Investigation of Dual Mode Ramjet Combustor Using Quasi 1-Dimensional Solver  

Yang, Jaehoon (Department of Mechanical and Aerospace Engineering, Seoul National University)
Nam, Jaehyun (Department of Mechanical and Aerospace Engineering, Seoul National University)
Kang, Sanghun (Aerospace System Engineering, Sejong University)
Yoh, Jai-ick (Department of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.49, no.11, 2021 , pp. 909-917 More about this Journal
Abstract
In this work, a one-dimensional combustor solver was constructed for the scramjet control m odel. The governing equations for fluid flow, Arrhenius based combustion kinetics, and the inje ction model were implemented into the solver. In order to validate the solver, the zero-dimensi onal ignition delay problem and one-dimensional scramjet combustion problem were considered and showed that the solver successfully reproduced the results from the literature. Subsequentl y, a ramjet analysis algorithm under subsonic speed conditions was constructed, and a study o n the inlet Mach number of the combustor was carried out through the thermal choking locatio ns at ram conditions. In such conditions, a model for precombustion shock train analysis was i mplemented, and the algorithm for transition section analysis was introduced. In addition, in or der to determine the appropriateness of the ram mode analysis in the code, the occurrence of a n unstart was studied through the length of the pseudo-shock in the isolator. A performance a nalysis study was carried out according to the geometry of the combustor.
Keywords
Scramjet; Ramjet; Ram-Scram transition; Hydrogen;
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Times Cited By KSCI : 1  (Citation Analysis)
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