Chambered diffusion flames for different supply temperatures

M. Matalon, G. S.S. Ludford

Research output: Contribution to journalArticlepeer-review


A complete description of chambered diffusion flames is presented using activation-energy asymptotics. Response curves are obtained describing the unburnt fuel fraction R as a function of its injection rate M. Their shapes depend on the specific parameter values T0 and T1, the supply temperatures of fuel and oxidant, and Tc, a temperature which characterizes the pressure level in the chamber. In addition to the isola and S-shaped curves found for equal supply temperatures, U-shaped and monotonic curves are now possible, the former being new to combustion. In every case explicit formulas for M are given at turning points of the curves, which correspond to ignition and extinction.

Original languageEnglish (US)
Pages (from-to)1377-1386
Number of pages10
JournalActa Astronautica
Issue number11
StatePublished - Nov 1979
Externally publishedYes

ASJC Scopus subject areas

  • Aerospace Engineering


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