| 微小圆管中分裂火焰的实验与理论研究 |
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| 引用本文： | 范爱武,Minaev Sergey,Maruta Kaoru,杨浩林,刘伟.微小圆管中分裂火焰的实验与理论研究[J].工程热物理学报,2011(10):1781-1784. |
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| 作者姓名： | 范爱武 Minaev Sergey Maruta Kaoru 杨浩林 刘伟 |
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| 作者单位： | 华中科技大学能源与动力工程学院;俄罗斯科学院西伯利亚分院理论与应用力学研究所;日本东北大学流体科学研究所;中国科学院广州能源研究所; |
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| 基金项目： | 国家自然科学基金(No.51076054); 湖北省自然基金(No.20092020); 中央高校基本科研业务费专项资金资助项目(No.2011TS078) |
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| 摘 要： | 对丙烷/空气在内径2 mm的圆管内的预混燃烧进行了实验研究,借助于高速数码摄像机发现了分裂火焰现象,其中一个为向上游传播的较亮的常规火焰,另一个为向下游传播的较暗的微弱火焰。这些火焰先后熄灭,经过一段时间后又重复发生自着火、分裂、反向传播、灭火过程。这种现象在富燃、化学恰当比以及贫燃火焰中都有存在。一维非稳态计算表明化...
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| 关 键 词： | 微燃烧 分裂火焰 微弱火焰 火焰不稳定性 |
Experimental and Theoretical Study on Splitting Flames in a Circular Micro Tube |
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| FAN Ai-Wu MINAEV Sergey MARUTA Kaoru YANG Hao-Lin LIU Wei.Experimental and Theoretical Study on Splitting Flames in a Circular Micro Tube[J].Journal of Engineering Thermophysics,2011(10):1781-1784. |
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| Authors: | FAN Ai-Wu MINAEV Sergey MARUTA Kaoru YANG Hao-Lin LIU Wei |
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| Institution: | FAN Ai-Wu~1 MINAEV Sergey~2 MARUTA Kaoru~3 YANG Hao-Lin~4 LIU Wei~1 (1.School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China,2.Institute of Theoretical and Applied Mechanics,SB RAS,Novosibirsk,Russia,3.Institute of Fluid Science,Tohoku University,Sendai,Japan,4.Guangzhou Institute of Energy Conversation,CAS,Guangzhou 510640,China) |
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| Abstract: | Premixed combustion of propane/air mixture was experimentally and theoretically investigated in a heated micro tube of 2.0 mm inner diameter.Splitting flames were observed with an image-intensified high-speed digital video camera.After auto-ignition of the mixture,the reaction front splits into an ordinary flame and a weak flame.The former propagates upstream whereas the latter moves downstream and finally they both extinguish.After some delay,re-ignition of fuel-air mixture occurs and flame splitting proce... |
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| Keywords: | micro combustion splitting flame weak flame flame instability |
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