Extinction of Lean Propane/Air Turbulent Premixed Flames in a Stagnation Point Flow
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概要
- 論文の詳細を見る
Effects of flame stretch and flame curvature on the extinction of turbulent premixed flames in a stagnation point flow have been studied experimentally. A lean propane/air mixture was used. Bulk stretch rate was varied from 15s^<-1> to 60s^<-1>, while the turbulence intensity of velocity fluctuation in the approach flow was varied up to 0.6m/s. Near the extinction limits, the local stretch rate was estimated by measuring the mean centerline velocity with LDV and the local flame curvature was measured using a laser tomographic method. The local stretch rate due to flow divergence decreases, while the stretch rate due to the local flame curvature increases with increase in the turbulence intensity. As a result, it is proposed that the sum of those two stretch rates plays a key role in flame extinction.
- 一般社団法人日本機械学会の論文
- 1992-05-15
著者
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Ueda Toshihisa
Department Of Applied Biological Science Faculty Of Agriculture Saga University
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Ueda Toshihisa
Department Of Mechanical Engineering Keio University
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MIZOMOTO Masahiko
Department of Mechanical Engineering, Keio University
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Mizomoto Masahiko
Department Of Mechanical Engineering Keio University
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Mizomoto Masahiko
Department Of Mechanical Engineering Graduate School Of Science And Technology Keio University
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YAHAGI Yuji
Department of Mechanical Engineering, Keio University
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Yahagi Y
Shibaura Inst. Technology
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Ueda Toshihisa
Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University
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