| 大宽度无叶扩压器旋转失速特征的数值分析 |
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| 引用本文： | 高闯,谷传纲,王彤,戴正元.大宽度无叶扩压器旋转失速特征的数值分析[J].上海交通大学学报,2007,41(9):1518-1521. |
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| 作者姓名： | 高闯 谷传纲 王彤 戴正元 |
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| 作者单位： | 上海交通大学,动力机械及工程教育部重点实验室,上海,200240;上海交通大学,动力机械及工程教育部重点实验室,上海,200240;上海交通大学,动力机械及工程教育部重点实验室,上海,200240;上海交通大学,动力机械及工程教育部重点实验室,上海,200240 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家自然科学基金 |
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| 摘 要： | 采用二维方法,预先给定扩压器入口的射流-尾迹分布,忽略边界层的影响,对一具有大宽度无叶扩压器进行了数值模拟;分析了扩压器长度、叶轮叶片数目等因素对失速的影响.计算结果表明:对于宽度不同的扩压器存在不同的失速机理,相关结论和文献结果的比较也证实了该方法的正确性.
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| 关 键 词： | 无叶扩压器 旋转失速 大宽度比 射流-尾迹 |
| 文章编号： | 1006-2467（2007）09-1518-04 |
| 修稿时间： | 2006-11-08 |
The Numerical Analysis of Rotating Stall Characteristics in Vaneless Diffuser with Large Width-to-Radius Ratio |
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| GAO Chuang,GU Chuan-gang,WANG Tong,DAI Zheng-yuan.The Numerical Analysis of Rotating Stall Characteristics in Vaneless Diffuser with Large Width-to-Radius Ratio[J].Journal of Shanghai Jiaotong University,2007,41(9):1518-1521. |
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| Authors: | GAO Chuang GU Chuan-gang WANG Tong DAI Zheng-yuan |
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| Institution: | Key Lab. for Power Machinery and Eng. of Ministry of Education, Shanghai Jiaotong Univ. , Shanghai 200240, China |
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| Abstract: | Two-dimensional model,where the influence of wall boundary layers is neglected and inlet jet-wake velocity patterns are prescribed,was applied to simulate one vanless diffuser with large width-radius(ratio.) The impact of diffuser length,impeller blade number,etc on the rotating stall was analyzed.The computational results show that different mechanism does exisit for the diffuser with different width-radius(ratio.) Comparison of the related conclusions and references is supportive for the correctness of the model. |
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| Keywords: | vaneless diffuser rotating stall large width-radius ratio jet-wake |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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