上海交通大学学报

上海交通大学学报 >

2022 , Vol. 56 >Issue 8: 1101 - 1110

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2021.384

航空航天

波浪条件下地效翼型气动力的环量控制研究

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  • 1.南京航空航天大学 飞行器环境控制与生命保障工业与信息化部重点实验室, 南京 210016
    2.南京航空航天大学 民航学院, 南京 211106
    3.中国空气动力研究与发展中心高速空气动力研究所, 四川 绵阳 621000
刘 浩(1995-),男,河北省保定市人,博士生,从事地效飞行器和流动控制研究.

收稿日期: 2021-09-30

  网络出版日期: 2022-08-26

基金资助

江苏高校优势学科建设工程资助项目,中国空气动力研究与发展中心基础和前沿技术研究基金资助项目(PJD20200210)

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Circulation Control of Airfoil Aerodynamic Force Under Ground Effect of Wavy Wall

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  • 1. Key Laboratory of Aircraft Environment Control and Life Support of the Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
    3. High Speed Aerodynamic Institute of China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China

Received date: 2021-09-30

  Online published: 2022-08-26

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摘要

波浪海面气流环境相对复杂,严重影响了地效飞行器巡航过程中的稳定性与安全性.针对波浪条件下的地效翼型,应用数值方法分析了不同海况波浪形状和不同飞行攻角对翼型气动特性的影响,进一步研究了定常吹气和周期吹气方法对地效下的环量控制翼型气动力影响规律.计算结果表明:波浪海面地效下,翼型升力系数随波浪周期性变化,波浪的波高较高、波长较短,翼型攻角较大时升力系数波动的幅度较大;通过与波浪相对运动相同周期的吹气环量控制方法,可以有效地控制波浪海况下翼型升力系数的波动,增强地效飞行器的稳定性与安全性.

关键词： 地面效应; 波浪海面; 气动特性; 环量控制; 吹气动量系数

本文引用格式

刘浩, 孙建红, 孙智, 陶洋, 王德臣, 刘光远 . 波浪条件下地效翼型气动力的环量控制研究[J]. 上海交通大学学报, 2022 , 56(8) : 1101 -1110 . DOI: 10.16183/j.cnki.jsjtu.2021.384

Abstract

The interaction of airflow and sea waves seriously affects the flight stability and cruising safety of ground effect vehicles. The influence of different sea states and different angles of attack were analyzed numerically on the aerodynamic characteristics of the airfoil under ground effect of wavy wall. The influence of the constant blowing and periodic blowing methods was further studied on the aerodynamic force of the airfoil under ground effect. The simulation results show that the lift coefficient of the airfoil changes periodically with the wave under the wavy ground wall. The amplitude of the lift coefficient fluctuation is larger with the increasing of wave height and angle of attack, or the decreasing of wavelength. Applying the circulation control method for periodic blowing in the same period as the relative motion of the waves can effectively weaken the fluctuation of the airfoil lift coefficient under wavy sea conditions and improve the flight stability and safety of ground effect vehicles.

Key words： ground effect; wavy wall; aerodynamic characteristic; circulation control; blowing momentum coefficient

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