The effect of flow compression on the determination of flame speeds using propagating spherical flames at normal and high pressures

Z. Chen, Yiguang Ju

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

Abstract

The effect of flow compression on the determination of laminar flame speeds utilizing spherical bombs at normal and high pressures is studied theoretically and numerically. The results show that compression induced flow has significant impacts on the accuracy of the measured flame speeds. An analytical expression for compression induced flow is obtained, and by considering the compression induced flow, the compression corrected flame speed (CCFS) is proposed for flame speed measurements using expanding spherical flames. The theoretical results are validated by direct numerical simulations of outwardly propagating spherical CH4/air flames using detailed chemistry. It is found that the accuracy of the measured flame speeds is greatly improved by using the CCFS and the pressure range is increased by considering compression effect.

Original languageEnglish (US)
Title of host publication5th US Combustion Meeting 2007
PublisherCombustion Institute
Pages356-361
Number of pages6
ISBN (Electronic)9781604238112
StatePublished - Jan 1 2007
Event5th US Combustion Meeting 2007 - San Diego, United States
Duration: Mar 25 2007Mar 28 2007

Publication series

Name5th US Combustion Meeting 2007
Volume1

Other

Other5th US Combustion Meeting 2007
CountryUnited States
CitySan Diego
Period3/25/073/28/07

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

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  • Cite this

    Chen, Z., & Ju, Y. (2007). The effect of flow compression on the determination of flame speeds using propagating spherical flames at normal and high pressures. In 5th US Combustion Meeting 2007 (pp. 356-361). (5th US Combustion Meeting 2007; Vol. 1). Combustion Institute.