Lewis number effect on the flame height of circulation-controlled firewhirls

Dehai Yu, Peng Zhang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


A theoretical analysis was carried out on the circulation-controlled firewhirls, considering multiple physical effects, including the previously investigated variable physical properties and strong vortex, and with emphasis on the effect of non-unity Lewis number. By means of perturbation method, an analytical expression of the flame height, with all effects presented in explicit forms, was derived in the situation of both fuel and of oxidizer Lewis numbers being near unity. In leading order approximation, the non-unity Lewis number effect tends to change the flame height by a factor of Leo/LeF.
Original languageEnglish
Title of host publication11th Asia-Pacific Conference on Combustion, ASPACC 2017
PublisherCombustion Institute
Publication statusPublished - 1 Jan 2017
Event11th Asia-Pacific Conference on Combustion, ASPACC 2017 - University of Sydney, Sydney, Australia
Duration: 10 Dec 201714 Dec 2017


Conference11th Asia-Pacific Conference on Combustion, ASPACC 2017

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemical Engineering(all)

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