Effects of addition of radicals supplied by plasma torch on burning velocity

Kenichi Takita, Takahiro Sato, Yiguang Ju, Goro Masuya

Research output: Contribution to conferencePaperpeer-review

8 Scopus citations


Ignition and flameholding characteristics of a plasma torch installed in a scramjet engine were investigated experimentally and analytically. In particular, changes in burning velocities by radical addition were calculated, and discussed. A burning velocity was increased by radical addition for conditions of high temperature (more than 750K) and high radical concentration (more than 0.1%), and the ratio of the increase in a burning velocity was proportional to the radical concentration. Difference between nitrogen and oxygen plasma torch for reducing ignition delay, increasing a burning velocity, and ignition limit could not be observed. Therefore, nitrogen plasma is better than oxygen plasma as the igniter, because the deterioration of the nozzle is severe for the oxygen plasma torch.

Original languageEnglish (US)
StatePublished - 1999
Event35th Joint Propulsion Conference and Exhibit, 1999 - Los Angeles, United States
Duration: Jun 20 1999Jun 24 1999


Other35th Joint Propulsion Conference and Exhibit, 1999
Country/TerritoryUnited States
CityLos Angeles

All Science Journal Classification (ASJC) codes

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


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