Numerical simulation study on influence of blockage ratio on wake characteristics of tidal turbine

被引：0
|
作者：
Li Y. [1 ]
Zhang Y. [1 ]
Zheng Y. [1 ]
Zhang Z. [2 ]
Guo H. [1 ]
Zhan Y. [3 ]
机构：
[1] College of Energy and Electrical Engineering, Hohai University, Nanjing
[2] College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing
[3] Hangzhou Luneng City Real Estate Co., Ltd., Hangzhou
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2022年 / 43卷 / 06期
关键词：
Blockage ratio; Numerical simulation; Tidal energy; Wake characteristics; Water turbine;
D O I：
10.19912/j.0254-0096.tynxb.2020-1071
中图分类号：
学科分类号：
摘要：
By comparing and analyzing the numerical simulation results with the experimental data, the accuracy of numerical simulation is verified. By changing the width of flume model to change the blockage ratio, the wake characteristics is analyzed under the condition of the blockage ratio of 9.8%, 14.7% and 29.5% respectively using STAR-CCM+. The results show that variation of blocking ratio will not only change the fluid velocity outside the sweep area, but also affect the recovery in the far wake, and also affect the rotation and turbulent kinetic energy distribution. However, with the increase of the flume width, the blockage ratio decreases, the influence on wake characteristics is gradually weakened. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：256 / 263
页数：7
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