| 阻塞比对潮流能水轮机尾流特性影响数值模拟研究 |
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| 引用本文： | 李岩伟,张玉全,郑源,张智,郭绘娟,战谊.阻塞比对潮流能水轮机尾流特性影响数值模拟研究[J].太阳能学报,2022,43(6):256-263. |
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| 作者姓名： | 李岩伟 张玉全 郑源 张智 郭绘娟 战谊 |
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| 作者单位： | 1.河海大学能源与电气学院,南京 210098; 2.河海大学水利水电学院,南京 210098; 3.杭州鲁能城置地有限公司,杭州 310000 |
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| 基金项目： | 国家自然科学基金（52171257;51809083）； |
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| 摘 要： | 首先通过对比分析数值模拟结果与水槽实验尾流场速度数据,验证数值模拟的准确性。通过在软件STAR-CCM+中改变水槽宽度的模型,使水轮机阻塞比分别在9.8%、14.7%和29.5%的情况下进行模拟计算,分析潮流能水轮机尾流特性的变化。结果显示,阻塞比的变化不仅会改变水轮机扫略区域外流体速度,影响远尾流恢复速度,还会对尾流的旋转和湍动能分布造成影响;但随着槽宽增加阻塞比减小,其对尾流特性影响逐渐减弱。
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| 关 键 词： | 潮流能 水轮机 数值模拟 尾流特性 阻塞比 |
| 收稿时间： | 2020-10-12 |
NUMERICAL SIMULATION STUDY ON INFLUENCE OF BLOCKAGE RATIO ON WAKE CHARACTERISTICS OF TIDAL TURBINE |
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| Li Yanwei,Zhang Yuquan,Zheng Yuan,Zhang Zhi,Guo Huijuan,Zhan Yi.NUMERICAL SIMULATION STUDY ON INFLUENCE OF BLOCKAGE RATIO ON WAKE CHARACTERISTICS OF TIDAL TURBINE[J].Acta Energiae Solaris Sinica,2022,43(6):256-263. |
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| Authors: | Li Yanwei Zhang Yuquan Zheng Yuan Zhang Zhi Guo Huijuan Zhan Yi |
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| Affiliation: | 1. College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China; 2. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 3. Hangzhou Luneng City Real Estate Co.,Ltd., Hangzhou 310000, China |
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| Abstract: | 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. |
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| Keywords: | tidal energy water turbine numerical simulation wake characteristics blockage ratio |
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