Similarity parameters of pre-ignition flowfields in a supersonic combustor

Yoshihiko Zamma, Hiroyuki Shiba, Goro Masuya, Sadatake Tomioka, Tetsuo Hiraiwa, Tohru Mitani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An experimental study of pre-ignition phase flowfields in a supersonic combustor with backward- facing steps was conducted. Inert gas was perpendicularly injected to coldairstream from four injector orifices downstream of thestep. Wall pressures andinjectant concentrations of the ignition region were measured and their dependence on dynamic pressure ratio and mass flux ratio of the injectant to mainstream, and on unit Reynolds number of the airflow were investigated. It was found that the wall pressure in the region between the step and the injection orifices was well correlated with dynamic pressure ratio but was little influenced by mass flux ratio and Reynolds number. Injectant concentration was influenced by both the dynamic pressure ratio and the mass flux ratio.

Original languageEnglish
Title of host publication33rd Joint Propulsion Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9780000000002
Publication statusPublished - 1997
Event33rd Joint Propulsion Conference and Exhibit, 1997 - Seattle, United States
Duration: 1997 Jul 61997 Jul 9

Other

Other33rd Joint Propulsion Conference and Exhibit, 1997
Country/TerritoryUnited States
CitySeattle
Period97/7/697/7/9

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Systems Engineering
  • Aerospace Engineering

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