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浙江大学学报(工学版)
浙江大学学报(工学版)
土木工程     
基于不同初始流速和推力系数的水平轴海流机尾流效应的实验研究
张亚超, 姚炎明, 万猛, 袁金雄
浙江大学 港口海岸与近海工程研究所,浙江 杭州 310058
Experimental study on wake effect of horizontal axis marine Current Turbine base-on different initial velocity and thrust coefficient
ZHANG Ya-chao, YAO Yan-ming, WAN Meng, YUAN Jin-xiong
Institute of Port, Coastal and Offshore Engineering, Zhejiang University, Hangzhou 310058, China
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摘要：

为了优化水平轴海流机组布局,提高海流能整体效率,针对水平轴海流机尾流的变化规律进行水槽实验.通过改变初始流速和推力系数,测量流速过程数据,对水平轴海流机尾流效应进行分析.实验结果表明：沿水流方向初始流速越大,下游尾流流速的收敛值越大,推力系数对尾流的影响集中在5d（d为发电机转子直径）距离内,在15d以后不同推力系数的尾流速度都趋于稳定,而且收敛值与推力系数无关；垂直水流方向初始流速越大,尾流效应范围越大,推力系数对尾流效应的影响集中在4d距离内.
Abstract:

In order to optimize the layout of horizontal axis marine current turbines and improve its overall efficiency, the flume experiment was conducted to investigate the law of the wake formed by the interaction between the horizontal axis marine current turbine and the flow. In order to study the wake effect, the variation process of flow velocity was measured under different initial velocities and thrust coefficients. The outcomes show that in the direction of flow, the faster the initial velocity is, the larger the convergence value of wake is; the influence scope of the thrust coefficient is within the distance of five times disk diameters. At a distance of fifteen times disk diameters, the wake velocities become stable and the convergence value is identical with the thrust coefficient varying. In the vertical direction of flow, the scope of the wake effect becomes larger with faster initial velocity; the influence scope of the thrust coefficient is in the range of four times disk diameters.
出版日期: 2014-12-01
:  TV 131  
通讯作者: 姚炎明，男，副教授     E-mail: hotfireyao@163.com
作者简介: 张亚超（1987—），男，硕士生，从事海洋水动力研究.E-mail：zhangyachao158@163.com
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引用本文:

张亚超, 姚炎明, 万猛, 袁金雄. 基于不同初始流速和推力系数的水平轴海流机尾流效应的实验研究[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.12.024.

ZHANG Ya-chao, YAO Yan-ming, WAN Meng, YUAN Jin-xiong. Experimental study on wake effect of horizontal axis marine Current Turbine base-on different initial velocity and thrust coefficient. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.12.024.

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http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.12.024    或    http://www.zjujournals.com/eng/CN/Y2014/V48/I12/2271

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