| 多孔喷头孔间距对射流特性影响的数值模拟 |
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| 引用本文： | 卢晓江,刘海舰,阳相. 多孔喷头孔间距对射流特性影响的数值模拟[J]. 天津科技大学学报, 2011, 0(5): 47-51 |
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| 作者姓名： | 卢晓江 刘海舰 阳相 |
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| 作者单位： | 天津科技大学机械工程学院; |
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| 摘 要： | 为研究多孔喷头孔间距对射流特性的影响,采用Fluent软件中的标准k-ε湍流模型并结合压力隐式分裂算子(PISO)算法对喷头的双孔射流在不同孔间距及不同压强下的速度分布展开研究,并对结果进行了对比分析.研究表明:卷吸现象的存在对射流的发展起到很大的作用,影响卷吸效应的两个关键因素是射流出口速度和喷孔之间的距离.
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| 关 键 词： | 多孔喷头 双孔射流 卷吸效应 数值模拟 |
Numerical Simulation on the Influence of the Characteristics of the Jet of Different Spacing of Multi-Hole Nozzles |
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| LU Xiao-jiang,LIU Hai-jian,YANG Xiang. Numerical Simulation on the Influence of the Characteristics of the Jet of Different Spacing of Multi-Hole Nozzles[J]. Journal of Tianjin University of Science & Technology, 2011, 0(5): 47-51 |
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| Authors: | LU Xiao-jiang LIU Hai-jian YANG Xiang |
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| Affiliation: | LU Xiao-jiang,LIU Hai-jian,YANG Xiang(College of Mechanical Engineering,Tianjin University of Science & Technology,Tianjin 300222,China) |
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| Abstract: | In order to study the influence on the characteristics of the jet of different spacings of multi-hole nozzlest,he standard k-ε turbulence model and the pressure implicit with splitting operator(PISO)algorithm of Fluent software were adopted to research the velocity distribution under different pressures of two jets of the nozzle at different spacings,and the results were compared and analyzed.The results show that the existence of the entrainment phenomenon has played a signifi-cant role in jet development,and the two key factors influencing the entrainment effect are the jet exit velocity and the dis-tance between the nozzle. |
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| Keywords: | multi-hole nozzle two jets entrainment numerical simulation |
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