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소형 펄스 데토네이션 엔진 저주파수 작동 특성 실험연구
한형석(Hyung-Seok Han),김정민(Jung-Min Kim),오세종(Sejong Oh),최정열(Jeong-Yeol Choi) 한국추진공학회 2018 한국추진공학회지 Vol.22 No.3
In this study, the operating characteristics of a small-scale pulse detonation engine (PDE) were investigated experimentally for application as a small thruster and an igniter. The PDE was constructed using commercial gas tubes with an inner diameter of 4.22 mm. The operating and detonation propagation characteristics of the PDE were investigated over the ranges of equivalence ratios and operating frequencies. Measured detonation speed was close to 10% of the theoretical CJ values at 1 Hz and 5 Hz conditions. However, unstable propagation characteristics were shown at 20 Hz and lean conditions, where the velocity deficit was increased by 20~62%.