Thermal auto-ignition in high-speed droplet-laden mixing layers

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• 作者：Zhaoxin Ren^a ; Bing Wang^a ; ^{wbing@tsinghua.edu.cn} ; Qiaofeng Xie^a ; Daolian Wang^b
• 关键词：Ignition ; Combustion ; Multiphase flows ; Supersonic mixing layers
• 刊名：Fuel
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：191
• 期：Complete
• 页码：176-189
• 全文大小：4049 K
• 卷排序：191

文摘

We investigate thermal auto-ignition in high-speed droplet-laden mixing layers. Ignition depends on the combined effects of droplet dispersion and evaporation. Contribution of non-premixed flame increases as droplet size increases. The droplet size affects the values of the most reactive mixture fraction. High spray equivalence ratio enhances scalar dissipation and evaporative cooling.