Radiation Effects on the Thermodiffusive Instability of Premixed Flames on a Cylindrical Porous Flame Holder
作者: Minglong DuLijun Yang
作者单位: 1Beihang University
刊名: International Journal of Thermophysics, 2017, Vol.38 (10)
来源数据库: Springer Journal
DOI: 10.1007/s10765-017-2288-5
关键词: InstabilityLinear analysisPremixed annular flamesRadiation heat loss
英文摘要: A linear analysis method was used to investigate the mechanics of radiation heat loss and mass transfer in the porous wall of premixed annular flames and their effect on thermodiffusive instability. The dispersion relation between the disturbance wave growth rate and wavenumber was calculated numerically. Results showed that radiation heat loss elevated the annular flame slightly away from the porous wall. In the annular flame with small Lewis numbers, radiation heat loss changed the thermodiffusive instability from a pulsating to a cellular state, while for the large Lewis numbers, only the pulsating instability was represented. Increasing radiation heat loss and the radius of the porous wall enhanced the instability of the annular flames. Heat losses decreased with the continued...
原始语种摘要: A linear analysis method was used to investigate the mechanics of radiation heat loss and mass transfer in the porous wall of premixed annular flames and their effect on thermodiffusive instability. The dispersion relation between the disturbance wave growth rate and wavenumber was calculated numerically. Results showed that radiation heat loss elevated the annular flame slightly away from the porous wall. In the annular flame with small Lewis numbers, radiation heat loss changed the thermodiffusive instability from a pulsating to a cellular state, while for the large Lewis numbers, only the pulsating instability was represented. Increasing radiation heat loss and the radius of the porous wall enhanced the instability of the annular flames. Heat losses decreased with the continued...
全文获取路径: Springer  (合作)
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影响因子:0.568 (2012)

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关键词翻译
关键词翻译
  • radiation 辐射
  • pulsating 搏动的
  • annular 环状的
  • premixed 预先拌合的
  • porous 多孔的
  • flame 火焰
  • numerically 数字上
  • transfer 转换
  • instability 不稳定性
  • numbers 数目