| 基于RSM模型的螺旋管道内二次流特性分析 |
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| 引用本文： | 张志雁,牧振伟.基于RSM模型的螺旋管道内二次流特性分析[J].新疆农业大学学报,2011,34(3):259-262. |
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| 作者姓名： | 张志雁 牧振伟 |
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| 作者单位： | 新疆农业大学水利与土木工程学院,乌鲁木齐,830052 |
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| 摘 要： | 利用FLUENT流体力学软件,采用RSM模型对矩形截面螺旋管道紊流流动中的二次流进行数值模拟。分析研究表明,矩形螺旋管道不同管轴半径连接断面上明显出现一对二次涡,且两个二次涡位于中心略微偏向外边壁,其结果与目前所研究的二次涡所在位置有区别;而且随着雷诺数的增大,二次涡的位置变化不大;随着管道曲率的增加,二次流强度逐渐增大,而随着雷诺数的增大,二次流强度却有所减小。
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| 关 键 词： | 二次流 螺旋管道 曲率 RSM模型 |
Analysis of Secondary Flow Characteristics in Spiral Duct Based on RSM Method |
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| ZHANG Zhi-yan,MU Zhen-wei.Analysis of Secondary Flow Characteristics in Spiral Duct Based on RSM Method[J].Journal of Xinjiang Agricultural University,2011,34(3):259-262. |
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| Authors: | ZHANG Zhi-yan MU Zhen-wei |
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| Institution: | ZHANG Zhi-yan,MU Zhen-wei(College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China) |
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| Abstract: | The RSM method in FLUENT is employed to numerically simulate secondary flow in spiral rectangular duct.The results indicate that a pair of secondary vortex occurs in the cross-section of the joint in different pipe radius of the spiral rectangular duct,and the position of the two secondary vortexes that deviate to outer wall slightly,is different from the research on secondary vortex at present;the position of two secondary vortex change little with the increasing of Reynolds number;the intensity of seconda... |
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| Keywords: | secondary flow spiral duct curvature RSM method |
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