Hydrodynamic performance of cross-type vertical axis tidal current twin-turbine

被引：0
|
作者：
Wang K. [1 ]
Sun K. [1 ]
Li Y. [1 ]
Zhang L. [1 ]
机构：
[1] Deepwater Engineering Research Center, Harbin Engineering University, Harbin
来源：
Sun, Ke (sunke@hrbeu.edu.cn) | 1600年 / Harbin Institute of Technology卷 / 49期
关键词：
Amplitude of fluctuation; Cross-type; Efficiency; Hydrodynamic performance; Twin-turbine; Vertical axis tidal turbine;
D O I：
10.11918/j.issn.0367-6234.201603072
中图分类号：
学科分类号：
摘要：
To study the effect of hydrodynamic performance on the new type vertical axis tidal turbine, using ANSYS-CFX software is adopted to simulate different working conditions for comparing the hydrodynamic performance between cross-type twin-turbine and H-type single turbine. Cross-type vertical axis tidal current twin-turbine is an improved form to traditional H-type turbine. The results show that: the efficiency of twin-turbine is about 10% higher than that of single turbine. The efficiency of twin-turbine changes little for ebbs and flows. The average values of thrust, lateral force and moment are equal between cross-type turbine and H-type turbine, but cross-type turbine's amplitude of fluctation is far less than that of H-type turbine, which can produce beneficial effects on the structure safety and fatigue life of turbines. Therefore, the cross-type vertical axis tidal current twin-turbine has obvious advantages compared to H-type single turbine in the efficiency and guarantying running life. © 2017, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
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页码：156 / 161
页数：5
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