Soret transport, unequal diffusivity, and dilution effects on laminar diffusion flame temperatures and positions

Effects of Soret diffusion on spherical flame initiation and propagation

“…Fong et al [25] examined the Soret diffusion effects on laminar diffusion flame in high density fluids. In these studies [22][23][24][25], only the planar flame was analyzed. However, in the literature there is no theoretical analysis on premixed spherical flame kernel development.…”

Effects of Soret diffusion on laminar flames

“…文献 [56]研 究了 Soret 扩散对正庚烷扩散火焰点火机制的影响. 最近, Yang 等人 [32,33,36] 详细探讨了 Soret 扩散对氢气 和正丁烷扩散对冲火焰的影响, Xin 等人 [35] 考察了 Soret 扩 散 对 正 庚 烷 扩 散 对 冲 扩 散 燃 烧 的 影 响 , Arias-Zugasti 和 Rosner [28] 研究了 Soret 扩散对对冲扩 散火焰温度和位置的影响, Fong 等人 [34] 图 16 C 7 H 16 /空气对冲扩散火焰温度随拉伸率的变化 [35] Fong 等人 [34] 通过渐近理论分析了 Soret 扩散对 随空间位置的变化 [23] 图 20 (网络版彩图)乙烯(a)/空气(b)同轴射流扩散火焰中碳 烟体积百分数 [30] 料或自由基的 Soret 扩散引起的. (2) 在高温高压等超临界化学反应流中, Soret 扩 散作用越发明显 [27,29,37] .…”

Effects of Soret Diffusion on Premixed Counterflow Flames

“…The flame temperature and position were found explicitly as a function of Soret diffusion coefficient (Fong et al, 2012). In these studies (Arias-Zugasti and Rosner, 2008;Fong et al, 2012;Garcia-Ybarra and Clavin, 1981;Garcia-Ybarra et al, 1984), the premixed counterflow flame was not considered. To our knowledge, in the literature there is no theoretical analysis on Soret diffusion effects on premixed counterflow flame.…”

“…GarciaYbarra and colleagues (Garcia-Ybarra and Clavin, 1981;Garcia-Ybarra et al, 1984) considered Soret diffusion in their theoretical analysis and showed that thermo-diffusive stability limits and Markstein lengths are affected by Soret diffusion. Arias-Zugasti and Rosner (2008) assessed the influence of Soret diffusion on counterflow diffusion flames. They found that, besides the non-unity fuel Lewis number, the Soret diffusion induces additional shifts of flame temperature and position (Arias-Zugasti and Rosner, 2008).…”

“…Arias-Zugasti and Rosner (2008) assessed the influence of Soret diffusion on counterflow diffusion flames. They found that, besides the non-unity fuel Lewis number, the Soret diffusion induces additional shifts of flame temperature and position (Arias-Zugasti and Rosner, 2008). Fong et al (2012) investigated the Soret diffusion effects on laminar diffusion flame residing in a counterflow of a fluid fuel stream and a gaseous oxidant.…”