Three-dimensional analysis with detailed chemical kinetics on plasma ignition in a supersonic flow

Seiichi Kunitomi, Junya Watanabe, Kenichi Takita, Goro Masuya

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

Abstract

Ignition enhancement effects of N2 and O2 plasma jets (PJs) to H2 fuel were numerically investigated. Calculation was conducted for a rectangular test section with inflow Mach number of 1.9. Fuel and PJ which located downstream of fuel injector were injected perpendicularly at sonic speed into main flow. Numerical results were compared with experiments using only N2 PJ and basically agreed to them. With N2 PJ for H2 fuel, N radicals slightly promoted combustion reactions, but, NO and NO2 did not show ignition enhancement effects in this calculation condition due to the low pressure of main flow. Meanwhile, with O2 PJ, not only O radicals but also high temperature O2 molecules accelerated combustion reactions. Therefore, O2 PJ had much stronger ignition enhancement effects compared with N2 PJ.

Original languageEnglish
Title of host publication18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
Publication statusPublished - 2012 Dec 1
Event18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012 - Tours, France
Duration: 2012 Sep 242012 Sep 28

Publication series

Name18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012

Conference

Conference18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
CountryFrance
CityTours
Period12/9/2412/9/28

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

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