| 可逆转轮三维流动的涡动力学诊断研究 |
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| 引用本文： | 樊红刚,陈乃祥,杨琳.可逆转轮三维流动的涡动力学诊断研究[J].水力发电学报,2007,26(3):124-128. |
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| 作者姓名： | 樊红刚 陈乃祥 杨琳 |
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| 作者单位： | 1. 清华大学水沙科学与水利水电工程国家重点实验室,热能工程系,北京,100084
2. 龙滩水电开发有限公司,南宁,530022 |
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| 基金项目： | 国家自然科学基金;中国博士后科学基金 |
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| 摘 要： | 本文将涡动力学理论引入可逆转轮内的双向三维流动诊断中，从叶片对流体做功能力分析过流部件的设计状况，通过对沿流线的截面上总压流积分的分解，找到产生对总压不良影响的动力学根源和位置，并利用叶片表面的边界涡量流分布来分析对叶片力矩产生不良影响的区域，为改进转轮流动设计提供直接的诊断依据。
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| 关 键 词： | 流体机械 可逆转轮 涡动力学 流动诊断 |
| 收稿时间： | 2005-09-27 |
| 修稿时间： | 2005-09-27 |
Three dimensional flow diagnosis of the pump turbine runner based on the dynamic vorticit |
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| FAN Honggang,CHEN Naixiang,YANG Lin.Three dimensional flow diagnosis of the pump turbine runner based on the dynamic vorticit[J].Journal of Hydroelectric Engineering,2007,26(3):124-128. |
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| Authors: | FAN Honggang CHEN Naixiang YANG Lin |
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| Affiliation: | 1. State Key Laboratory of Hydroscience and Engineering, Department of Thermal Engineering, Tsinghua University, Beijing 100084 ; 2. Longtan Hydropower Company, Nanning 530022 |
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| Abstract: | The bidirectional flow of pump turbine runner is diagnosed by a new method based on the dynamic vorticit. In this method, the design of the runner is evaluated by the blade. The integral of the total pressure position normal to the streamlines is analyzed and obtained by the dynamic vorticit. The boundary vortex flux distribution of the blade is analyzed to obtain the negative contribution zone for the runner moment. This new method can provide the direct flow diagnosis for improvement of the pump turbine runner design. |
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| Keywords: | fluid machinery pump turbine runner dynamic vorticit flow diagnosis |
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