Thrust Performance of Rotary-Valved Four-Cylinder Pulse Detonation Rocket Engine

• MATSUOKA Ken

  Department of Aerospace Engineering, Nagoya University

• SAKAMOTO Ryuki

  Department of Engineering Mechanics and Energy, University of Tsukuba

• MOROZUMI Tomohito

  Department of Engineering Mechanics and Energy, University of Tsukuba

• KASAHARA Jiro

  Department of Aerospace Engineering, Nagoya University

• MATSUO Akiko

  Department of Mechanical Engineering, Keio University

• FUNAKI Ikkoh

  JAXA Institute of Space and Astronautical Science

Abstract

We designed a rotary valve for a multi-cylinder pulse detonation rocket engine (PDRE), and constructed a greatly simplified rotary-valved four-cylinder PDRE (inner diameter and length of detonation tube: 37 mm and 1,600 mm, respectively). The partial-fill effect of a propellant in a multi-cylinder PDRE under high-frequency operation was investigated. The suctioned-air fill fraction was estimated using the model of Sato et al., which is a semiempirical formula for the partial-fill effect of a propellant based on two-dimensional numerical analysis [Sato et al., Journal of Propulsion and Power, Vol. 22, No. 1, 2006, pp. 64–69]. A maximum propellant-based specific impulse of 251 s and a time-averaged thrust of 242 N were achieved using C₂H₄-O₂ as the propellant and an operation frequency of 129.6 Hz/tube (fill pressure: 1 atm). The maximum operation frequency was 160.3 Hz/tube (641.2 Hz/all tubes).

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

  TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 58 (4), 193-203, 2015

  THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

Keywords

• Pulse Detonation Engine
• Pulse Detonation Rocket Engine
• Rotary Valve

Details

• CRID: 1390001204079194240
• NII Article ID: 130005083372
• DOI: 10.2322/tjsass.58.193
• ISSN: 21894205
• ISSN: 05493811
• Web Site: https://www.jstage.jst.go.jp/article/tjsass/58/4/58_T-14-17/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed