| 流体机械叶轮内二次流及尾迹发展 |
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| 引用本文： | 蔡兆麟,罗晟.流体机械叶轮内二次流及尾迹发展[J].华中科技大学学报(自然科学版),2001,29(Z1):7-10. |
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| 作者姓名： | 蔡兆麟 罗晟 |
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| 作者单位： | 华中科技大学能源与动力工程学院 |
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| 摘 要： | 利用有限体积法对N-S方程进行数值求解.模拟了离心叶轮内的粘性流动,研究了不同转速和不同流量对二次流及叶轮出口截面尾迹区的影响.研究结果表明,三维粘性流动数值模拟二次流的结果与二次流理论分析结果相一致,对于离心叶轮出口尾迹区,无论是数值大小还是区域范围都与实验结果基本符合.
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| 关 键 词： | 叶轮机械 二次流 尾迹 数值模拟 |
| 文章编号： | 1000-8616(2001)1-0007-04 |
| 修稿时间： | 2000年1月25日 |
Secondary Flow and Wake in Fluid Machinery Impeller |
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| Cai Zhaolin Luo Sheng College of Energy & Power Eng.,HUST Wuhan ,China..Secondary Flow and Wake in Fluid Machinery Impeller[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2001,29(Z1):7-10. |
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| Authors: | Cai Zhaolin Luo Sheng College of Energy & Power Eng HUST Wuhan China |
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| Institution: | Cai Zhaolin Luo Sheng College of Energy & Power Eng.,HUST Wuhan 430074,China. |
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| Abstract: | The finite volume method used to solve the N S equations is presented. The viscous flow in centrifugal impeller is researched. The influence of different rotation speed and different flow rate on the secondary flow and wake region at the outer section of impeller are studied. The secondary flow results of three dimensional viscous flow simulation agree well with the analysis of secondary flow theory. In the wake region at the exit of centrifugal impeller, not only the values but also the region scale is consistent with the experiment results. |
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| Keywords: | turbomachinery secondary flow wake numerical simulation |
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