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山东大学学报 (工学版) ›› 2020, Vol. 50 ›› Issue (6): 23-29.doi: 10.6040/j.issn.1672-3961.0.2020.052

• • 上一篇    

尾缘襟翼振荡水翼的水动力特性

孙光,王勇*,谢玉东,陈晨,张玉兵   

  1. 山东大学机械工程学院, 山东 济南 250061
  • 发布日期:2020-12-15
  • 作者简介:孙光(1980— ),男,山东烟台人,博士研究生,主要研究方向为潮流能发电设备. E-mail:sunguang123@126.com. *通信作者简介:王勇(1963— ),男,山东齐河人,博士生导师,主要研究方向为流体控制技术,新能源设备开发. E-mail: meywang@sdu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51875316);山东省自然科学基金资助项目(ZR2019MEE025)

Hydrodynamic characteristics of oscillating hydrofoil with trailing edge

SUN Guang, WANG Yong*, XIE Yudong, CHEN Chen, ZHANG Yubing   

  1. School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong, China
  • Published:2020-12-15

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摘要： 为了提高振荡水翼的能量提取效率,提出一种带尾缘襟翼的振荡水翼结构,在传统水翼的后端加装尾缘襟翼,利用尾缘襟翼的摆动达到提高功率的目的。建立襟翼摆动的运动方程并对等效攻角方程进行推导。利用CFD软件中的动态和移动网格技术对模型进行数值模拟。仿真结果显示,尾缘襟翼结构增加水翼翼型的拱度,使水翼的攻角增加,进而增加振荡水翼的升力系数和时均功率系数。推导的等效攻角公式与模拟结果一致,等效攻角公式能够较好的预示模拟结果。尾缘襟翼的摆动负功在整个振荡水翼采集功率中占的比例很小。

关键词: 潮流能, 振荡水翼, 尾缘襟翼, 能量提取, 水动力

Abstract: In order to improve the energy extraction efficiency of an oscillating hydrofoil, an oscillating hydrofoil structure with trailing edge flaps was proposed. This structure was to install a trailing edge flap at the rear end of a traditional hydrofoil, and used the swing of the trailing edge flap to achieve the purpose of increasing power. The equations of motion of flap oscillations were established and the equivalent angle of attack equation was derived. The model was numerically simulated using the dynamic and moving grid technologies in the CFD software. The simulation results showed that the trailing edge flap structure increased the arch of the hydrofoil and increased the attack angle of the hydrofoil, which in turn increased the lift coefficient and the time-averaged power coefficient. The derived equivalent angle of attack formula was consistent with the simulation results, and the equivalent angle of attack formula can better predictd the simulation results. The negative work of the trailing edge flap occupied a small proportion of the total power collected by the oscillating hydrofoil.

Key words: tidal energy, oscillating hydrofoil, trailing edge(TE)plain flap, energy harvesting, hydrodynamic

中图分类号: 

  • TH766
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