上海交通大学学报

上海交通大学学报 >

2023 , Vol. 57 >Issue 6: 747 - 756

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2021.380

航空航天

考虑阶跃型地面的翼型前飞气动特性影响研究

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  • 1.西安交通大学 机械结构强度与振动国家重点实验室,西安 710049
    2.西北工业大学 无人系统技术研究院,西安 710072
徐晓刚(1996-),硕士生,主要从事飞行器设计研究.

收稿日期: 2021-09-26

  修回日期: 2021-11-23

  录用日期: 2021-12-16

  网络出版日期: 2022-11-25

基金资助

国家自然科学基金青年项目(11602199)

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Influence of Aerodynamic Characteristics of Airfoil Forward Flight Considering Step-Type Ground

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  • 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, China
    2. Unmanned System Research Institute, Northwestern Polytechnical University, Xi’an 710072, China

Received date: 2021-09-26

  Revised date: 2021-11-23

  Accepted date: 2021-12-16

  Online published: 2022-11-25

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摘要

翼型前飞过程中,地面效应带来的气动力影响难以忽略,尤其在地面结构产生突变时翼型的气动性能必然产生较大变化.通过NACA4412翼型算例,研究了翼型前飞过程中阶跃型地面引起的气动性能影响,分析高度和迎角两种因素与翼型气动性能的相关性.结果表明:在阶跃型地面作用下,翼型前飞在地面效应缺失时会引起翼型升阻比陡降,且与离地高度存在线性关系.离地攻角则与气动性能突变之间存在相反关系,即翼型脱离地面时需维持较大迎角才能减弱气动性能陡变效应,舰载机的起降过程属于典型的阶跃型地面.基于上述结果,为地面效应影响下翼型的气动设计提供参考.

关键词： 阶跃型地面; 地面效应; 气动特性; 前飞

本文引用格式

徐晓刚, 张扬, 昌敏, 陈刚 . 考虑阶跃型地面的翼型前飞气动特性影响研究[J]. 上海交通大学学报, 2023 , 57(6) : 747 -756 . DOI: 10.16183/j.cnki.jsjtu.2021.380

Abstract

The aerodynamic influence of ground effects during forward flight is difficult to ignore, especially when there is a sudden change in the ground structure. The aerodynamic performance of the airfoil during forward flight is investigated using the NACA4412 airfoil, the correlation between two factors, i.e., height and angle of attack, and the aerodynamic performance of the airfoil are analyzed. The results show that under the effect of step-type ground, the wing forward flight causes a steep drop in lift-to-drag ratio when the ground effect is absent, and there is a linear relationship with the height above the ground. The angle of attack from the ground has an inverse relationship with the sudden change in aerodynamic performance, i.e., the airfoil needs to maintain a large angle of attack when it leaves the ground in order to reduce the steep change in aerodynamic performance. The take-off and landing process of a shipboard aircraft is typical of a step-type ground. This paper provides a reference for the aerodynamic design of an airfoil under the influence of ground effects.

Key words： step-type ground; ground effect; pneumatic characteristics; forward flight

参考文献

[1] ROZHDESTVENSKY K V. Ekranoplans:The GEMs of fast water transport[J]. Transactions of the Institute of Marine Engineers, 1997, 109(1): 47-74.
[2] ROZHDESTVENSKY K V. Wing-in-ground effect vehicles[J]. Progress in Aerospace Sciences, 2006, 42(3): 211-283.
[3] JUNG K H, CHUN H H, KIM H J. Experimental investigation of wing-in-ground effect with a NACA6409 section[J]. Journal of Marine Science and Technology, 2008, 13(4): 317-327.
[4] ZHANG X, ZERIHAN J. Aerodynamics of a double-element wing in ground effect[J]. AIAA Journal, 2003, 41(6): 1007-1016.
[5] RAYNER J. On the aerodynamics of animal flight in ground effect[J]. Philosophical Transactions of the Royal Society of London Series B: Biological Sciences, 1991, 334(1269): 119-128.
[6] ZHANG X, TOET W, ZERIHAN J. Ground effect aerodynamics of race cars[J]. Applied Mechanics Reviews, 2006, 59(1): 33-49.
[7] ZERIHAN J, ZHANG X. Aerodynamics of a single element wing in ground effect[J]. Journal of Aircraft, 2000, 37(6): 1058-1064.
[8] AHMED M R, SHARMA S D. An investigation on the aerodynamics of a symmetrical airfoil in ground effect[J]. Experimental Thermal and Fluid Science, 2005, 29(6): 633-647.
[9] YANG W, YANG Z. Aerodynamic investigation of a 2D wing and flows in ground effect[J]. Chinese Journal of Computational Physics, 2009, 26(2): 231-240.
[10] AHMED M R, TAKASAKI T, KOHAMA Y. Aerodynamics of a NACA4412 airfoil in ground effect[J]. AIAA Journal, 2007, 45(1): 37-47.
[11] QU Q L, WANG W, LIU P Q, et al. Airfoil aerodynamics in ground effect for wide range of angles of attack[J]. AIAA Journal, 2015, 53(4): 1048-1061.
[12] 秦绪国, 刘沛清, 屈秋林. 翼型波浪水面巡航地面效应数值模拟[J]. 北京航空航天大学学报, 2011, 37(3): 295-299.
[12] QIN Xuguo, LIU Peiqing, QU Qiulin. Numerical simulation on aerodynamics of airfoil flying over wavy water surface[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(3): 295-299.
[13] 张海潮, 代钦. 曲面附近的机翼地面效应和流场结构的实验研究[J]. 水动力学研究与进展(A辑), 2021, 36(2): 210-220.
[13] ZHANG Haichao, DAI Qin. Experimental study on the ground effect and flow field structure of wing near the curved surface[J]. Chinese Journal of Hydrodynamics: A, 2021, 36(2): 210-220.
[14] ZHU Z H, CAO M S, XIN Z Q, et al. Analysis of fluid and solid interaction of the flexible bionic wing in ground effect[J]. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2021, 235(2): 280-295.
[15] NUHAIT A O, MOOK D T. Numerical simulation of wings in steady and unsteady ground effects[J]. Journal of Aircraft, 1989, 26(12): 1081-1089.
[16] 乐挺, 王立新. 地效飞机的纵向稳定性和气动布局特点研究[J]. 飞行力学, 2007, 25(3): 5-8.
[16] YUE Ting, WANG Lixin. A study on longitudinal stability and configuration characteristics of wing-in-ground effect craft[J]. Flight Dynamics, 2007, 25(3): 5-8.
[17] QU Q L, LU Z, LIU P Q, et al. Numerical study of aerodynamics of a wing-in-ground-effect craft[J]. Journal of Aircraft, 2014, 51(3): 913-924.
[18] QU Q L, HUANG L W, LIU P Q, et al. Aerodynamics of an airfoil in dynamic ground effect during take-off[C]//55th AIAA Aerospace Sciences Meeting. Reston, Virginia: AIAA, 2017: 1659.
[19] ROOZITALAB E, KHARATI-KOOPAEE M. Effect of Gurney flap on the aerodynamic behavior of an airfoil in mutational ground effect[J]. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2021, 235(3): 339-355.
[20] 任玉新, 陈海昕. 计算流体力学基础[M]. 北京: 清华大学出版社, 2006: 18-47.
[20] REN Yuxin, CHEN Haixin. Fundamentals of computational fluid dynamics[M]. Beijing: Tsinghua University Press, 2006: 18-47.
[21] MENTER F R. Two-equation eddy-viscosity turbulence models for engineering applications[J]. AIAA Journal, 1994, 32(8): 1598-1605.
[22] 杨金广, 吴虎. 双方程k-ω SST湍流模型的显式耦合求解及其在叶轮机械中的应用[J]. 航空学报, 2014, 35(1): 116-124.
[22] YANG Jinguang, WU Hu. Explicit coupled solution of two-equation k-ω SST turbulence model and its application in turbomachinery flow simulation[J]. Acta Aeronautica et Astronautica Sinica, 2014, 35(1): 116-124.
[23] GREGORY N, REILLY C L. Low-speed aerodynamic characteristics of NACA 0012 aerofoil section, including the effects of upper-surface roughness simulating hoar frost[R]. Teddington: National Physical Laboratory, 1970.
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