Studies on the outwardly and inwardly propagating spherical flames with radiative heat loss

Zheng Chen, Yiguang Ju

Research output: Contribution to conferencePaperpeer-review

Abstract

Outwardly propagating spherical flame (OPF) and inwardly propagating spherical flame (IPF) with radiative heat loss have been investigated with emphasis placed on studying the effects of radiative heat loss and preferential diffusion on the flammability limit, flame propagating speed, and Markstein length of propagating spherical flame. The flame propagating speed for OPF and IPF at different Lewis numbers is found to change in opposite trends. The flammability region is shown to be extended/reduced for OPF with small/large Lewis number and IPF with large/small Lewis number. Furthermore, it is found that the Markstein length is strongly affected by radiative heat loss and the thermal-diffusion instability is enhanced by radiation for mixture with small Lewis number.

Original languageEnglish (US)
StatePublished - 2009
Event7th Asia-Pacific Conference on Combustion, ASPACC 2009 - Taipei, Taiwan, Province of China
Duration: May 24 2009May 27 2009

Conference

Conference7th Asia-Pacific Conference on Combustion, ASPACC 2009
CountryTaiwan, Province of China
CityTaipei
Period5/24/095/27/09

All Science Journal Classification (ASJC) codes

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

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