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| 底流消能的跌坎型消力池再附长度的试验研究 | |
| 引用本文： | 赖成联,赵亚光,钟志镭,王立辉.底流消能的跌坎型消力池再附长度的试验研究[J].云南水力发电,2007,23(6):39-41,51. |
| 作者姓名： | 赖成联 赵亚光 钟志镭 王立辉 |
| 作者单位： | 1. 广西水利电力勘测设计研究院,广西南宁,530021 2. 云南省德宏州水利电力勘察设计院,云南德宏,678400 3. 昆明理工大学电力工程学院,云南,昆明,650051 |
| 摘 要： | 再附长度是衡量坎后底滚回流区水流特征的一个重要参数,再附长度随水流入射角度、跌坎深度的变化而变化。根据平面紊动射流理论,建立淹没紊动射流的扩散方程,推导出再附长度计算的半经验公式,并结合水力学试验,对公式进行验证。结果表明,通过试验观测所得观测值与通过半经验公式计算所得理论值吻合较好。 |
| 关 键 词： | 底流消能 跌坎 消力池 再附长度 |
| 文章编号： | 1006-3951（2007）06-0039-03 |
| 收稿时间： | 2007-10-10 |
| 修稿时间： | 2007年10月10 |
Test and Study of Additional Length of a Drop Type Plunge Pool for Underflow Energy Dissipation |
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| LM Cheng-lian,ZHAO Ya-guang,ZHONG zhi-lei,WANG Li-hui.Test and Study of Additional Length of a Drop Type Plunge Pool for Underflow Energy Dissipation[J].Yunnan Water Power,2007,23(6):39-41,51. | |
| Authors: | LM Cheng-lian ZHAO Ya-guang ZHONG zhi-lei WANG Li-hui |
| Abstract: | The additional length is an important parameter to judge the flow characteristic of the backflow zone downstream from the sill of plunge pool,which changes with incident angle of water flow and depth of baffle sill.This paper has established a diffusion equation of inundated turbulent jet flow based on the theory of plane turbulent jet flow,then used it to derive a semi-empirical formula for calculation of additional length and finally verified it by hydraulic test.The results show that the observation values obtained from the tests conform to the theoretical values calculated from the semi-empirical formula. |
| Keywords: | bottom flow energy dissipation drop sill plunge pool additional length |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
