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Published in:
Performance of Rotating Detonation Engines for Air Breathing Applications Read chapter Read first chapter

2018 | OriginalPaper | Chapter

8. Pulse Detonation Cycle at Kilohertz Frequency

Authors : Ken Matsuoka, Haruna Taki, Jiro Kasahara, Hiroaki Watanabe, Akiko Matsuo, Takuma Endo

Published in: Detonation Control for Propulsion

Publisher: Springer International Publishing

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Abstract

To realize kilohertz and higher frequency of a pulse detonation cycle (PDC), enhancement of deflagration-to-detonation transition (DDT) is necessary. A novel semi-valveless PDC method, in which the inner diameter of the oxidizer feed line is equal to that of the combustor, can increase the pressure of detonable mixture by increasing total pressure of supplying oxidizer. In demonstration experiments, ethylene as fuel, pure oxygen as the oxidizer and the combustor having an inner diameter of 10 mm and length of 100 or 60 mm were used. A PDC was successfully operated at the frequency of up to 1916 Hz. Under the condition of 1010 Hz operation, the total pressure of supplying oxidizer were varied. As the results, it was found that the DDT distance and time decreased by approximately 50% when the total pressure of supplying oxidizer increased by 242%.

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previous chapter Continuous Detonation Engine Researches at Peking University
next chapter On the Investigation of Detonation Re-initiation Mechanisms and the Influences of the Geometry Confinements and Mixture Properties
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Metadata
Title
Pulse Detonation Cycle at Kilohertz Frequency
Authors
Ken Matsuoka
Haruna Taki
Jiro Kasahara
Hiroaki Watanabe
Akiko Matsuo
Takuma Endo
Copyright Year
2018
Book
Detonation Control for Propulsion

Print ISBN: 978-3-319-68905-0

Electronic ISBN: 978-3-319-68906-7

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-68906-7_8

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