Letter: Does flame-generated vorticity increase turbulent burning velocity?
Letter: Does flame-generated vorticity increase turbulent burning velocity?
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信件：火焰产生的涡量是否会增加湍流燃烧速度？
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
T. Hasegawa
中科院分区：
文献类型：
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作者：
A. Lipatnikov;V. Sabelnikov;S. Nishiki;T. Hasegawa
对从与小火焰燃烧状态相关的统计静止、一维、平面、弱湍流、预混火焰获得的直接数值模拟数据进行分析，以表明小火焰内斜压扭矩产生的涡量可以阻止反应表面起皱、减小其面积并降低燃烧速率。这些数据要求重新审视因火焰产生的湍流而被广泛接受的燃烧加速概念。
Direct numerical simulation data obtained from a statistically stationary, 1D, planar, weakly turbulent, premixed flame, which is associated with the flamelet combustion regime, are analyzed in order to show that generation of vorticity due to baroclinic torque within flamelets can impede wrinkling the reaction surface, reduce its area, and decrease the burning rate. These data call for revisiting the widely accepted concept of combustion acceleration due to flame-generated turbulence.