| 基于CFD的混流式水轮机内的涡旋研究 |
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| 引用本文： | 黄剑峰,王灿宇,文俊,饶碧玉,龙立焱.基于CFD的混流式水轮机内的涡旋研究[J].云南农业大学学报,2010,25(1):147-151. |
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| 作者姓名： | 黄剑峰 王灿宇 文俊 饶碧玉 龙立焱 |
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| 作者单位： | 1. 昆明理工大学 工程力学系，云南 昆明 650051；;2. 云南农业大学 水利水电与建筑学院，云南 昆明 650201 |
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| 基金项目： | 云南省自然科学基金，云南省教育厅科学研究基金 |
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| 摘 要： | 混流式水轮机尾水管中的低频涡带、转轮中的叶道涡及导叶和转轮叶片出口处的卡门涡是产生压力脉动,引起机组振动的主要水力原因。为了解决机组运行的稳定性问题,基于计算流体动力学(CFD)数值模拟方法,从影响水轮发电机组稳定运行的流体因素出发,研究混流式水轮机中各种涡旋的产生机理和本身特征,找到减轻涡旋造成不利影响的有效办法。
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| 关 键 词： | 混流式水轮机 计算流体动力学(CFD) 涡旋 水力稳定性 |
| 收稿时间： | 2008-12-4 |
| 修稿时间： | 2009-5-18 |
Research on Vortex of a Francis Hydro-turbine Based on CFD Technology |
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| HUANG Jian-feng,WANG Can-yu,WEN Jun,RAO Bi-yu,LONG Li-yan.Research on Vortex of a Francis Hydro-turbine Based on CFD Technology[J].Journal of Yunnan Agricultural University,2010,25(1):147-151. |
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| Authors: | HUANG Jian-feng WANG Can-yu WEN Jun RAO Bi-yu LONG Li-yan |
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| Institution: | 1. Department of Engineering Mechanics, Kunming University of Science and Technology, Kunming 650051, China；2. College of Water Resources, Hydraulic Power and Architecture, Yunnan Agricultural University, Kunming 650201, China |
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| Abstract: | The hydraulic reasons for vibration of Francis hydro turbine and pressure pulsation are draft tube vortex, blade channel vortex, and Kármán vortex. In order to resolve the operating stability of the hydro turbine generator set, in this paper all kinds of vortex were studied based on computational fluid dynamics (CFD) technology, including their mechanism of formation and own feature, we could find effective means for alleviate effect of vortex from hydraulic reason for affecting the operating stability of hydro turbine generator set. |
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| Keywords: | Francis hydro-turbine computational fluid dynamics vortex hydraulic stability |
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