The influence of adjustable slot configuration on aerodynamic characteristics of airfoil

LYU Wenhao; ZHANG Zhihao; HAO Lishu; GAO Yongwei

doi:10.7638/kqdlxxb-2023.0166

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The influence of adjustable slot configuration on aerodynamic characteristics of airfoil

更新时间：2026-05-28

- The influence of adjustable slot configuration on aerodynamic characteristics of airfoil
- Vol. 42, Issue 6, Pages: 76-87(2024)
- 作者机构：
  
  1. 西北工业大学无人系统技术研究院,西安,710072
  2. 西北工业大学翼型叶栅空气动力学国家级重点实验室,西安,710072
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2023.0166
  CLC： V211.3
- Published：2024
- 稿件说明：
移动端阅览
吕文豪, 张智昊, 郝礼书, 等. 可调缝道构型对翼型气动特性的影响[J]. 空气动力学学报, 2024, 42(6): 76−87.

LYU Wenhao, ZHANG Zhihao, HAO Lishu, et al. The influence of adjustable slot configuration on aerodynamic characteristics of airfoil[J]. 2024, 42(6): 76-87.
吕文豪, 张智昊, 郝礼书, 等. 可调缝道构型对翼型气动特性的影响[J]. 空气动力学学报, 2024, 42(6): 76−87. DOI： 10.7638/kqdlxxb-2023.0166

LYU Wenhao, ZHANG Zhihao, HAO Lishu, et al. The influence of adjustable slot configuration on aerodynamic characteristics of airfoil[J]. 2024, 42(6): 76-87. DOI： 10.7638/kqdlxxb-2023.0166.

摘要

翼型开缝是一种抑制翼型吸力面流动分离的被动流动控制技术。为了解决翼型开缝时仅能改善失速特性无法保障小迎角气动特性不被破坏的问题，本文以S809翼型作为研究对象，采用CFD方法进行翼型开缝研究，探究不同缝道参数对翼型气动特性的影响。提出了一种缝道调整方案，通过可调缝道兼顾翼型在小迎角及大迎角时的气动特性。结果表明：1）“基础缝道”构型可大幅改善翼型的失速特性，最大升力系数提高70.8%，达到1.81，失速迎角推迟到21°；2）通过平移或旋转等方式实现了曲线缝道的“梯形”化，实现了缝道的微小调整，得到可维持翼型小迎角气动特性的两种缝道构型；3）利用“基础缝道”和“前翼旋转5°缝道”之间的几何关系，提出了一种可调缝道方案，满足了失速特性大幅改善前提下小迎角气动特性不被破坏的需求。本文所采用的可调缝道研究思路和缝道方案可为翼型开缝技术的工程化应用提供一种参考。

Abstract

Even though slotted airfoils can effectively inhibit flow separation on the airfoil suction surface and thus improve the aerodynamic performance during stall

they may undermine the aerodynamic performance at small angles of attack. In this paper

we studied the influence of slot parameters on the aerodynamic characteristics of airfoil S809 utilizing CFD (Computational Fluid Dynamics) simulations

with the aim to design an adjustable slot that can realize significant improvement of aerodynamic performance at both small and large angles of attack. Exploiting numerical simulation results yielded a base slot configuration that can considerably improve airfoil’s stall characteristics

with the maximum lift coefficient increased by 70.8% and the stall angle of attack delayed to 21°. By translating and rotating the basic slot configuration

we obtained a trapezoidal curved slot that allows slight adjustment and two slot configurations that can maintain the airfoil’s aerodynamic characteristics at small angles of attack. Moreover

based on the geometric relationship between the basic slot configuration and the one rotated anticlockwise by 5°

we proposed an adjustable slot configuration that can significantly improve the stall characteristics and does not undermine the aerodynamic characteristics at small angles of attack. The proposed adjustable slot configurations shed some lights on designing slotted airfoils.

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references

RAYMER D. Aircraft design: A conceptual approach, 5th edition[M]. Washington, DC: AIAA, 2012.

WANG L, LUO Z B, XIA Z X, et al . Numerical simulation of separated flow control on an airfoil using dual synthetic jets[J ] . Acta Aerodynamica Sinica, 2012 , 30 ( 3 ): 353 − 357,372 (in Chinese) .

ZHOU Y, LUO Z B, WANG L, et al . Plasma synthetic jet actuator for flow control: Review[J ] . Acta Aeronautica et Astronautica Sinica, 2022 , 43 ( 3 ): 025027 (in Chinese).

XU H Y, MA C Y . Review of t he co-flow jet flow control method[J ] . Advances in Aeronautical Science and Engineering, 2022 , 13 ( 6 ): 1 − 16 (in Chinese).

LUO S C, WU L Y, CHANG Y. Mechanism analysis of magnetohydrodynamic control in hypersonic turbulent flow[J]. Acta Physica Sinica, 2022, 71(21): 214702 (in Chinese).

ZHAN P G, CHENG Y H, ZHAO X . A review of active flow control technology[J ] . Aeronautical Science Technology, 2010 , 21 ( 5 ): 2 − 6 (in Chinese).

MOHAMED O S, IBRAHIM A A, ETMAN A K, et al . Numerical investigation of Darrieus wind turbine with slotted airfoil blades[J ] . Energy Conversion and Management:X, 2020 , 5 : 100026 .

ZHOU X L, WENG H P, GONG Y X, et al . Experimental study on effect of vortex generator design parameters on 40% thick airfoil[J ] . Acta Energiae Solaris Sinica, 2022 , 43 ( 6 ): 212 − 218 (in Chinese).

FISH F E, BATTLE J M . Hydrodynamic design of the humpb ack whale flipper[J ] . Journal of Morphology, 1995 , 225 ( 1 ): 51 − 60 .

CHAMORRO L P, ARNDT R E A, SOTIROPOULOS F . Drag reduction of large wind turbine blades through riblets: Evaluation of riblet geometry and application strategies[J ] . Renewable Energy, 2013 , 50 : 1095 − 1105 .

KENTFIELD J A C, CLAVELLE E J . The flow physics of the Gurney flaps devices for improving turbine blade performance[J ] . Wind Engineering, 1993 , 17 ( 1 ): 24 − 34 .

TOBIN N, HAMED A, CHAMORRO L . An experimental study on the effects of winglets on the wake and performance of a model wind turbine[J ] . Energies, 2015 , 8 ( 10 ): 11955 − 11972 .

GAD-EL-HAK M . Modern developments in flow control[J ] . Applied Mechanics Reviews, 1996 , 49 ( 7 ): 365 .

ZHOU M, WANG R G, CAO Z H, et al . Effect of slot position and slot structure on performance of cascade[J ] . Acta Aerodynamica Sinica, 2008 , 26 ( 3 ): 400 − 404 (in Chinese).

WANG H J, LUO W, ZHANG R . Effects of slat parameters on features of flow and noise for an airfoil[J ] . Advances in Aeronautical Science and Engineering, 2019 , 10 ( 3 ): 330 − 339 (in Chinese).

YANG K, WANG H S, XU J Z, et al . Stalling feature research of wind turbine with fin[J ] . Journal of Engineering Thermophysics, 2008 , 29 ( 1 ): 32 − 35 . (in Chinese)

NI Z, DHANAK M, SU T C . Improved performance of a slotted blade using a novel slot design[J ] . Journal of Wind Engineering and Industrial Aerodynamics, 2019 , 189 : 34 − 44 .

BELAMADI R, DJEMILI A, ILINCA A, et al . Aerodynamic performance analysis of slotted airfoils for application to wind turbine blades[J ] . Journal of Wind Engineering and Industrial Aerodynamics, 2016 , 151 : 79 − 99 .

ZHANG L J, MA D C, GU J W, et al . Influence of shape of slotted airfoil on aerodynamic performance of vertical axis wind turbine[J ] . Journal of Central South University (Science and Technology), 2019 , 50 ( 8 ): 1848 − 1856 (in Chinese).

WANG L, SUN L Y, ZHANG J . Study of the impact of the change of slotted position at high angle of attack on wind turbine blades[J ] . Journal of Hefei University of Technology (Natural Science), 2017 , 40 ( 8 ): 1037 − 1041 (in Chinese).

BEYHAGHI S, AMANO R S . Improvement of aerodynamic performance of cambered airfoils using leading-edge slots[J ] . Journal of Energy Resources Technology, 2017 , 139 ( 5 ): 051204 .

XIE Y H, CHEN J H, QU H C, et al . Numerical and experimental investigation on the flow separation control of S809 airfoil with slot[J ] . Mathematical Problems in Engineering, 2013 , 2013 : 301748 .

HAO L S, LIN Z J, QU H Y, et al . Influence of slot geometry configuration on airfoil aerodynamic characteristics[J ] . Acta Aerodynamica Sinica, 2023 , 41 ( 11 ): 36 − 45 (in Chinese).

CHEN G L, WANG L J, YAN X K, et al . Numerical simulation on effect of aerodynamic performance of airfoil with slot on reverse ventilation of axial-flow fan[J ] . Journal of China Coal Society, 2010 , 35 ( 8 ): 1395 − 1400 (in Chinese).

SUN J. Study on double circular arc gap of wind turbine wing and its effect on airflow control[D]. Beijing: North China Electric Power University, 2022 (in Chinese).

SOMERS D. Design and experimental results for the S809 airfoil[R]. Golden, CO, United States: National Renewable Energy Lab. , 1997.

YANG R, YANG S B, SUN X Y, et al . Effect of slits on aerodynamic characteristics of wind-driven airfoil[J ] . Chinese Journal of Applied Mechanics, 2021 , 38 ( 1 ): 70 − 77 (in Chinese).

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