| 具有前置诱导轮的低比转速复合叶轮的数值模拟 |
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| 引用本文： | 万忠,崔宝玲,林慧超,陈通励.具有前置诱导轮的低比转速复合叶轮的数值模拟[J].浙江理工大学学报,2011,28(1). |
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| 作者姓名： | 万忠 崔宝玲 林慧超 陈通励 |
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| 作者单位： | 1. 浙江理工大学流体传输及应用实验室,杭州,310018
2. 浙江天德泵业有限公司,浙江,苍南,325800 |
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| 基金项目： | 国家自然科学基金(20706049,50976105); 浙江省重大科技攻关计划(2008C11056) |
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| 摘 要： | 选用Navier-Stokes方程和Spalart-Allmaras湍流模型分析诱导轮对复合叶轮内部流动的影响,采用Numeca软件对具有前置诱导轮及无诱导轮两种工况下的低比转速复合叶轮进行了数值模拟研究。对比分析结果表明:与无诱导轮的叶轮相比,前置诱导轮复合叶轮叶片进口前端和叶片流道间回流区域减小,叶片进口处压力增加,叶轮内部液体流动更加均匀并提高了叶轮的抗汽蚀性能,有效改善了叶轮的水力性能。
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| 关 键 词： | 低比转速 诱导轮 复合叶轮 数值模拟 回流区域 压升 |
The Numerical Simulation of Low-Specific-Speed Complex-Impeller with Inducer |
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| WAN Zhong,CUI Bao-ling,LIN Hui-chao,CHEN Tong-li.The Numerical Simulation of Low-Specific-Speed Complex-Impeller with Inducer[J].Journal of Zhejiang Sci-tech University,2011,28(1). |
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| Authors: | WAN Zhong CUI Bao-ling LIN Hui-chao CHEN Tong-li |
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| Affiliation: | WAN Zhong1,CUI Bao-ling1,LIN Hui-chao2,CHEN Tong-li2(1.The Laboratory of Fluid Transmission and Application,Zhejiang Sci-Tech University,Hangzhou 310018,China,2.Zhejiang Tiande Pump Co.Ltd,Cangnan 325800,China) |
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| Abstract: | In order to analyse the infulence of inducer on the flow in the complex impeller,the inner flow field in low-specific-speed complex impeller with and no-inducer are simulated respectively.Using the Spalar-Allmaras turbulence model and the Reynolds-Averaged Navier-Storkes equations,the three-dimensional turbulent flow fields are analyzed numerically by the Numeca Software.The results show that there is long and narrow back flow region near the inlet of blade and the performance is affected by the existence o... |
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| Keywords: | low-specific speed inducer complex impeller numerical simulation back flow region pressure rise |
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