A205 NUMERICAL STUDY ON TRIBRACHIAL FLAME PROPAGATION IN A 2-D MIXING LAYER(Laminar flame-1)

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概要

• 論文の詳細を見る

• Propagation characteristics of tribrachial flames have been studied numerically in a two-dimensional fuel/oxidizer mixing layer. A flame is initiated by imposing a high temperature ignition source. Subsequent propagation of a tribrachial flame is traced. The flow redirection effect at the leading edge of a tribrachial flame increases the propagation speed beyond the corresponding stoichiometric laminar burning velocity. The effect of mixture fraction gradient on the propagation speed of a tribrachial flame is analyzed in a mixing layer by using the fact that mixture fraction gradient increases as a tribrachial flame propagates toward upstream. As the flame curvature at the leading edge increases with decreasing mixture fraction gradient, the flow redirection effect becomes more pronounced on the flame propagation speed. As a result, the propagation speed of a tribrachial flame increases with decreasing mixture fraction gradient.

• 一般社団法人日本機械学会の論文
• 2000-10-01

著者

• Kim Hong

  School Of Electronics And Information Engineering Cheongju University

• Chung Suk

  School Of Mechanical And Aerospace Engineering Seoul National University

• Kim Junhong

  School Of Mechanical And Aerospace Engineering Seoul National University

• Kim Hong

  School of Electronic and Information Engineering, Cheongju University, 36 Naedok-Dong Sangdang-Gu, Cheongju, Chungbuk 360-764, Korea

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