INFLUENCE OF COMBINED CIRCULATION CONTROL BY GF AND VGS FOR TIDAL TURBINE PERFORMANCE IMPROVEMENT

Liu Yonghui; Pei Zhen; Xue Yu; Tan Junzhe; Yuan Peng; Si Xiancai

doi:10.19912/j.0254-0096.tynxb.2023-1232

PDF(4922 KB)

Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (11) : 595-603. DOI: 10.19912/j.0254-0096.tynxb.2023-1232

INFLUENCE OF COMBINED CIRCULATION CONTROL BY GF AND VGS FOR TIDAL TURBINE PERFORMANCE IMPROVEMENT

Liu Yonghui^1,2, Pei Zhen¹, Xue Yu¹, Tan Junzhe^1,3, Yuan Peng^1,3, Si Xiancai^1,3

Author information +

History +

Abstract

In order to suppress the boundary layer flow separation at the root of the tidal turbine blade and improve the power efficiency of the tidal turbine blade, this paper introduces the combined circulation control of Gurney flap （GF） and Vortex generators （VGs） into the field of turbine blade design. Based on the NACA63418 hydrofoil, the blade models with GF, VGs, and their combination are established respectively. Through the combination of experiment and CFD numerical simulation, the effect of GF and VGs installed separately on the three-dimensional twisted blades of the turbine are studied, and then the research on the influence of their combination is carried out. The results show that： 1） For the original turbine blades with a diameter of 700 mm, the root of the blade suction side is prone to flow separation and radial flow; 2） Installing GF can not only improve the radial flow at the root of the turbine blade hydrofoil trailing edge, but also increase the pressure on the upper and lower surfaces of the second half of the blade hydrofoil, and when the GF height is 2.0%C （C is the chord length of the blade hydrofoil）, the power efficiency coefficient can be increased by about 1.7% at the optimal tip speed ratio （λ=5）; 3） Installing VGs can increase the power efficiency coefficient at the best tip speed ratio by about 1.0% by suppressing the flow separation at the blade root; 4） The combined circulation control of GF and VGs can combine both of their advantages, and it can not only effectively suppress the flow separation at the root of the blades, but also increase the pressure difference between the upper and lower surfaces of the blade hydrofoil. The power efficiency can be increased by about 1.7%-4.8%, and the power efficiency coefficient at the best tip speed ratio can be increased by about 2.5%.

Key words

tidal power / blade hydrofoil / numerical simulation / vortex generators / gurney flap / combined flow control

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Liu Yonghui, Pei Zhen, Xue Yu, Tan Junzhe, Yuan Peng, Si Xiancai. INFLUENCE OF COMBINED CIRCULATION CONTROL BY GF AND VGS FOR TIDAL TURBINE PERFORMANCE IMPROVEMENT[J]. Acta Energiae Solaris Sinica. 2024, 45(11): 595-603 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1232

References

[1] 胡振辉, 袁鹏, 司先才, 等. 数据驱动的潮流能水轮机叶片翼型性能保真替代计算模型对比研究[J]. 太阳能学报, 2022, 43(12): 495-502.
HU Z H, YUAN P, SI X C, et al.Comparative study of surrogate calculation models for performance of blade hydrofoil of tidal turbine based on data-driven[J]. Acta energiae solaris sinica, 2022, 43(12): 495-502.
[2] KUNDU P.Hydrodynamic design of a horizontal axis current turbine with passive flow control using vortex generator and inserted tube[J]. International journal of green energy, 2024, 21(1): 143-153.
[3] 吴柏慧, 李春, 朱海天, 等. 风力机叶片被动流动控制技术研究进展[J]. 热能动力工程, 2019, 34(9): 24-40.
WU B H, LI C, ZHU H T, et al.Research progress of passive flow control technology for wind turbine blade[J]. Journal of engineering for thermal energy and power, 2019, 34(9): 24-40.
[4] 崔钊, 高华, 韩东, 等. 格尼襟翼对低雷诺数翼型流场的影响研究[J]. 计算机仿真, 2018, 35(7): 15-21.
CUI Z, GAO H, HAN D, et al.Study on impact of gurney flaps on low Reynolds number airfoil flowfield[J]. Computer simulation, 2018, 35(7): 15-21.
[5] ALBER J, SOTO-VALLE R, MANOLESOS M, et al.Aerodynamic effects of Gurney flaps on the rotor blades of a research wind turbine[J]. Wind energy science, 2020, 5(4): 1645-1662.
[6] YAO Y, MA D L, ZHANG L, et al.Aerodynamic optimization and analysis of low Reynolds number propeller with gurney flap for ultra-high-altitude unmanned aerial vehicle[J]. Applied sciences, 2022, 12(6): 3195.
[7] HAO L S, GAO C, SONG W P, et al.Airfoil flow control using vortex generators and a Gurney flap[J]. Proceedings of the institution of mechanical engineers, part C: journal of mechanical engineering science, 2013, 227(12): 2701-2706.
[8] SKRZYPIŃSKI W, GAUNAA M, BAK C, et al. Increase in the annual energy production due to a retrofit of vortex generators on blades[J]. Wind energy, 2020, 23(3): 617-626.
[9] 江瑞芳, 赵振宙, 冯俊鑫, 等. 涡流发生器对风力机叶片流动控制的数值研究[J]. 工程热物理学报, 2021, 42(12): 3170-3177.
JIANG R F, ZHAO Z Z, FENG J X, et al.Numerical study on flow control of wind turbine blade by vortex generators[J]. Journal of engineering thermophysics, 2021, 42(12): 3170-3177.
[10] 郝礼书, 乔志德, 宋文萍. 基于涡流发生器和Gurney襟翼的翼型绕流流动控制试验研究[J]. 航空学报, 2011, 32(8): 1429-1434.
HAO L S, QIAO Z D, SONG W P.Experimental research on control flow over airfoil based on vortex generator and gurney flap[J]. Acta aeronautica et astronautica sinica, 2011, 32(8): 1429-1434.
[11] ALBER J, MANOLESOS M, WEINZIERL-DLUGOSCH G, et al.Experimental investigation of mini Gurney flaps in combination with vortex generators for improved wind turbine blade performance[J]. Wind energy science, 2022, 7(3): 943-965.
[12] REN Y R, LIU B W, ZHANG T T, et al.Design and hydrodynamic analysis of horizontal axis tidal stream turbines with winglets[J]. Ocean engineering, 2017, 144: 374-383.
[13] MENTER F R, KUNTZ M, LANGTRY R, et al.Ten years of industrial experience with the SST turbulence model[J]. Turbulence heat and mass transfer, 2003, 4(1): 625-632.
[14] LEE T, LEE L.Effect of gurney flap on unsteady wake vortex[J]. Journal of aircraft, 2007, 44(4): 1398-1402.
[15] 杨瑞, 郭瑞, 张康康, 等. 襟翼高度对风力机气动性能影响[J]. 太阳能学报, 2020, 41(11): 248-253.
YANG R, GUO R, ZHANG K K, et al.Effect of gurney flap height on wind turbine aerodynamic performance[J]. Acta energiae solaris sinica, 2020, 41(11): 248-253.
[16] JAIN S, SITARAM N, KRISHNASWAMY S.Computational investigations on the effects of gurney flap on airfoil aerodynamics[J]. International scholarly research notices, 2015, 2015: 402358.
[17] GRAHAM M, MURADIAN A, TRAUB L W.Experimental study on the effect of gurney flap thickness on airfoil performance[J]. Journal of aircraft, 2017, 55(2): 897-904.
[18] 江瑞芳, 赵振宙, 刘惠文, 等. 涡流发生器安装参数对风力机翼段动态失速影响[J]. 太阳能学报, 2023, 44(1): 218-225.
JIANG R F, ZHAO Z Z, LIU H W, et al.Influence of vortex generators installation parameters on dynamic stall of wind turbine airfoil[J]. Acta energiae solaris sinica, 2023, 44(1): 218-225.
[19] ZHU C Y, WANG T G, WU J H.Numerical investigation of passive vortex generators on a wind turbine airfoil undergoing pitch oscillations[J]. Energies, 2019, 12(4): 654.
[20] LIN J C.Review of research on low-profile vortex generators to control boundary-layer separation[J]. Progress in aerospace sciences, 2002, 38(4/5): 389-420.
[21] FOUATIH O M, MEDALE M, IMINE O, et al.Design optimization of the aerodynamic passive flow control on NACA 4415 airfoil using vortex generators[J]. European journal of mechanics-B/fluids, 2016, 56: 82-96.
[22] CHEN H.Numerical investigation of the effects of vortex generators on the Bell A821201 airfoil[J]. Journal of the Brazilian society of mechanical sciences and engineering, 2021, 43(11): 516.
[23] 刘永辉, 者浩楠, 谭俊哲, 等. 涡流发生器对潮流能水轮机叶片流动分离特性影响研究[J]. 太阳能学报, 2022, 43(11): 358-363.
LIU Y H, ZHE H N, TAN J Z, et al.Study on influence of vortex generator on flow separation characteristics of tidal turbine blades[J]. Acta energiae solaris sinica, 2022, 43(11): 358-363.