| 有旋和无旋气固两相湍流的不同结构 |
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| 引用本文： | 刘阳,周力行,许春晓.有旋和无旋气固两相湍流的不同结构[J].工程热物理学报,2011(1):63-66. |
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| 作者姓名： | 刘阳 周力行 许春晓 |
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| 作者单位： | 大连海事大学轮机工程学院;清华大学工程力学系; |
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| 基金项目： | 国家自然科学基金资助项目(No.50606026;No.50736006) |
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| 摘 要： | 了解有旋和无旋突扩气粒两相详细湍流结构对控制燃料-空气混合、火焰稳定以及燃烧污染物生成很重要.周力行等曾经对其中的两相时平均流场和湍流特性进行过雷诺平均的RANS模拟和测量的研究,但是BANS模拟不能给出详细的两相湍流的瞬态结构.本文建立了二阶矩两相亚网格尺度应力模型,对有旋和无旋同轴突扩气粒两相流动进行了双流体大涡模...
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| 关 键 词： | 突扩燃烧室 气体-颗粒流动 详细湍流结构 大涡模拟 |
DIFFERENT TURBULENCE STRUCTURE OF GAS-PARTICLE TWO-PHASE FLOW WITH AND WITHOUT SWIRLING FLOW |
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| LIU Yang ZHOU Li-Xing XU Chun-Xiao.DIFFERENT TURBULENCE STRUCTURE OF GAS-PARTICLE TWO-PHASE FLOW WITH AND WITHOUT SWIRLING FLOW[J].Journal of Engineering Thermophysics,2011(1):63-66. |
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| Authors: | LIU Yang ZHOU Li-Xing XU Chun-Xiao |
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| Institution: | LIU Yang~(1,2) ZHOU Li-Xing~2 XU Chun-Xiao~2 (1.Marine Engineering College,Dalian Maritime University,Dalian 116026,China,2.Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Detailed gas-particle two-phase turbulence structure with and without swirling flows is very important to control fuel-air mixing,flame stabling and combustion pollutant producing in combustion chamber.Lot of RANS and experimental studies had been carried out for time-averaged mean flow flied and turbulence behavior of two-phase flow.But,detailed instantaneous two-phase turbulence structure could not be observed.A second-order-moment subgrid-scale stress model(SOMSGS) based on two-fluid approach is proposed... |
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| Keywords: | sudden-expansion combustion chamber gas-particle two-phase flow detailed turbulence structure large eddy simulation |
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