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钝体尾迹流流动与燃烧特性研究
引用本文:马晓茜. 钝体尾迹流流动与燃烧特性研究[J]. 华南理工大学学报(自然科学版), 1997, 0(6): 91-96
作者姓名:马晓茜
作者单位:华南理工大学电力学院
摘    要:将正三角形钝体后尾迹流近似地分为回流区、射流主流区、尾流恢复区、充分发展区;用半理论半经验的分析方法对尾迹流动力方程进行了求解;讨论了尾迹流中高温烟气回流、煤粉浓度局部富集及低速高湍流度等流动特性对煤粉提前着火及火焰稳定等燃烧特性的影响。

关 键 词:钝体 尾迹流 煤粉燃烧

AN INVESTIGATION INTO THE CHARACTERISTICS OF THE FLOW AND COMBUSTION WITHIN BLUFF BODY WAKES
Ma Xiaoqian. AN INVESTIGATION INTO THE CHARACTERISTICS OF THE FLOW AND COMBUSTION WITHIN BLUFF BODY WAKES[J]. Journal of South China University of Technology(Natural Science Edition), 1997, 0(6): 91-96
Authors:Ma Xiaoqian
Abstract:The author of this paper proposes a four zone partition behind a bluff body, namely, recirculation, primary jet flow, wakes recovery and sufficient development. The fluid dynamic functions are solved by a semianalytical and semi empirical method. The author also discusses the influences on the combustion characteristics exerted by the recirculation flow of high temperature gas, the concentration of pulverized coal and the low velocity and high turbulence.
Keywords:bluff body  wakes  combustion of pulverized coal
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