| 原型水轮机的非定常湍流计算和尾水管压力脉动分析 |
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| 引用本文： | 刘树红,邵奇,杨建明,吴玉林,戴江. 原型水轮机的非定常湍流计算和尾水管压力脉动分析[J]. 水力发电学报, 2005, 24(1): 74-78 |
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| 作者姓名： | 刘树红 邵奇 杨建明 吴玉林 戴江 |
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| 作者单位： | 清华大学热能工程系,北京,100084;湖北清江水电开发有限责任公司,宜昌,443002;中国长江三峡工程开发总公司,宜昌,443000 |
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| 基金项目： | 清华大学校内基金 (JC2 0 0 30 1 7) |
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| 摘 要： | 本文对三陕原型混流式水轮机进行了三维非定常湍流计算，得到了水轮机的非定常流场，预测了尾水管内的压力脉动。通过与模型试验结果进行比较可以看出，本计算能够比较准确地预测尾水管内的压力脉动。本文还根据计算结果分析了尾水管内非定常涡带产生和传播的原理。
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| 关 键 词： | 水力机械 非定常流动 数值模拟 压力脉动 尾水管涡带 |
| 修稿时间： | 2004-01-05 |
Unsteady turbulent simulation of prototype hydraulic turbine and analysis of pressure fluctuation in draft tube |
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| Liu Shuhong,SHAO Qi,Yang Jianming,WU Yulin,DAI Jiang. Unsteady turbulent simulation of prototype hydraulic turbine and analysis of pressure fluctuation in draft tube[J]. Journal of Hydroelectric Engineering, 2005, 24(1): 74-78 |
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| Authors: | Liu Shuhong SHAO Qi Yang Jianming WU Yulin DAI Jiang |
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| Affiliation: | LIU Shuhong1,SHAO Qi1,YANG Jianming2,WU Yulin1,DAI Jiang3 |
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| Abstract: | Three-dimensional unsteady turbulent flow is simulated through the whole passage of Three Gorge's Francis hydraulic turbine, and the pressure fluctuation in draft tube is predicted. The comparison between the calculation results and experimental data indicates that the calculation in this paper can medict the pressure fluctuation in draft tube very well. In the meantime, the helical vortex rope in draft tube is analyzed by the principle of its production and spread. |
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| Keywords: | hydraulic machinery unsteady flow numerical simulation pressure fluctuation vortex rope in draft tube |
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