尾缘襟翼振荡水翼的水动力特性

doi:10.6040/j.issn.1672-3961.0.2020.052

摘要/Abstract

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

孙光,王勇,谢玉东,陈晨,张玉兵. 尾缘襟翼振荡水翼的水动力特性[J]. 山东大学学报 (工学版), 2020, 50(6): 23-29.

SUN Guang, WANG Yong, XIE Yudong, CHEN Chen, ZHANG Yubing. Hydrodynamic characteristics of oscillating hydrofoil with trailing edge[J]. Journal of Shandong University(Engineering Science), 2020, 50(6): 23-29.

参考文献

[1] SU Chang, MADANI Hatef, LIU Hua, et al. Seawater heat pumps in China, a spatial analysis[J]. Energy Conversion and Management, 2020, 203(1): 112240-112255.
[2] KINSEY T, DUMAS G. Parametric study of an oscillating airfoil in a power-extraction regime[J]. AIAA Journal, 2008, 46(6): 1318-1330.
[3] KINSEY T, DUMAS G, LALANDE G, et al. Prototype testing of a hydrokinetic turbine based on oscillating hydrofoils[J]. Renewable Energy, 2011, 36(6): 1710-1718.
[4] KINSEY T, DUMAS G. Computational fluid dynamics analysis of a hydrokinetic turbine based on oscillating hydrofoils[J]. Journal of Fluids Engineering, 2012, 134(2):021104-021111.
[5] LU K, XIE Y, ZHANG D. Numerical study of large amplitude, non sinusoidal motion and camber effects on pitching airfoil propulsion[J]. Journal of Fluids and Structures, 2013, 36(1):184-194.
[6] LU K, XIE Y, ZHANG D, et al. Systematic investigation of the flow evolution and energy extraction performance of a flapping-airfoil power generator[J]. Energy, 2015, 89(19):138-147.
[7] MA Penglei, WANG Yong, XIE Yudong, et al. Effects of time-varying free stream velocity on energy harvesting using an oscillating foil[J]. Ocean Engineering, 2018, 153(4): 353-362.
[8] MA Penglei, WANG Yong, XIE Yudong, et al. Numerical analysis of a tidal current generator with dual flapping wings[J]. Energy, 2018, 155(7): 1077-1089.
[9] MA Penglei, WANG Yong, XIE Yudong. Effect of wake interaction on the response of two tandem oscillating hydrofoils[J]. Energy Science & Engineering, 2019, 7(2): 431-442.
[10] 刘海宾,王勇,马鹏磊,等. 基于平行式振荡翼系统参数耦合分析[J]. 浙江大学学报(工学版), 2017, 51(1): 153-159. LIU Haibin, WANG Yong, MA Penglei, et al. Coupling analysis of parameters based on parallel-oscillating hydrofoils hydrokinetic turbine[J]. Journal of Zhejiang University(Engineering Science), 2017, 51(1): 153-159.
[11] 王勇,刘海宾,谢玉东,等. 双水翼耦合振荡捕获潮流能系统2维数值模拟[J]. 四川大学学报(工程科学版), 2016, 48(5): 173-179. WANG Yong, LIU Haibin, XIE Yudong, et al. Two-dimensional numerical simulation of dual-oscillating hydrofoils in an energy extraction system[J]. Journal of Sichuan University(Engineering Science Edition), 2016, 48(5): 173-179.
[12] CHABERT T, DANDOIS J, GARNIER É, et al. Experimental closed-loop control of flow separation over a plain flap using slope seeking[J]. Experiments in Fluids, 2014, 55(8): 1797-1807.
[13] ZHU B, HUANG Y, ZHANG Y, et al. Energy harvesting properties of a flapping wing with an adaptive Gurney flap[J]. Energy, 2018, 152(1): 119-128.
[14] XUE G, LIU Y, ZHANG M, et al. Numerical analysis of hydrodynamics for bionic oscillating hydrofoil based on panel method[J]. Applied Bionics and Biomechanics, 2016, 2016(6):1-11.
[15] WANG Y, HUANG D, HAN W, et al. Research on the mechanism of power extraction performance for flapping hydrofoils[J]. Ocean Engineering, 2017, 129(1):626-636.
[16] 李润杰,李春,李倩倩,等. 襟翼长度对翼型水动特性影响[J]. 水资源与水工程学报, 2016, 27(1): 158-162. LI Runjie, LI Chun, LI Qianqian, et al. Effect of flap length on water dynamic characteristics of airfoil[J]. Journal of Water Resources & Water Engineering, 2016, 27(1):158-162.
[17] TODOROV M. Aerodynamic characteristics of airfoil with single plain flap for light airplane wing[C] //International Conference on Military Technologies 2015. Brno, Czech Republic: IEEE Press, 2015:1-6.
[18] RHEE S H, KIM S E, AHN H, et al. Analysis of a jet-controlled high-lift hydrofoil with a flap[J]. Ocean Engineering, 2003, 30(16): 2117-2136.
[19] 缪维跑,李春,聂佳斌,等. 襟翼翼型位置对气动性能的影响研究[J]. 能源研究与信息,2015,31(4): 242-246. MIAO Weipao, LI Chun, NIE Jiabin, et al. Influence of the flap airfoils with different positions on the aerodynamic performance[J]. Energy Research And Information, 2015, 31(4): 242-246.
[20] 崔钊,张毅,张宏林,等. 后缘弧形襟翼的气动特性研究[J]. 飞行力学, 2018, 36(1): 7-11. CUI Zhao, ZHANG Yi, ZHANG Honglin, et al. Aerodynamic characteristics of a cambered flap at the trailing-edge of airfoil[J]. Flight Dynamics, 2018, 36(1): 7-11.

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