航空学报 > 2022, Vol. 43 Issue (11): 526785-526785   doi: 10.7527/S1000-6893.2022.26785

自然层流飞行测试翼套的仿真和试验

王浩1, 钟敏1, 华俊1, 钟海2, 杨体浩3, 王猛4, 雷国东1   

  1. 1. 中国航空研究院 技术研究二部, 北京 100012;
    2. 中国飞行试验研究院 中航工业飞行仿真航空科技重点实验室, 西安 710089;
    3. 西北工业大学 航空学院, 西安 710072;
    4. 航空工业空气动力研究院 高速高雷诺数航空科技重点实验室, 沈阳 110034
  • 收稿日期:2021-12-08 修回日期:2022-02-21 出版日期:2022-11-15 发布日期:2022-04-12
  • 通讯作者: 王浩,E-mail:wanghao@cae.ac.cn E-mail:wanghao@cae.ac.cn

Simulation and experiment of natural laminar flow flight test wing glove

WANG Hao1, ZHONG Min1, HUA Jun1, ZHONG Hai2, YANG Tihao3, WANG Meng4, LEI Guodong1   

  1. 1. Department of Technology Ⅱ, Chinese Aeronautical Establishment, Beijing 100012, China;
    2. AVIC Aeronautical Science and Technology Key Laboratory of Flight Simulation, CETE, Xi'an 710089, China;
    3. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
    4. Aero Science Key Lab of High Reynolds Aerodynamics Force of High Speed, AVIC Aerodynamics Research Institute, Shenyang 110034, China
  • Received:2021-12-08 Revised:2022-02-21 Online:2022-11-15 Published:2022-04-12

摘要: 绿色航空的发展逐步受到重视,通过扩大层流区域进行减阻是实现节能减排的一个重要途径。采用考虑转捩判定的数值模拟方法对某自然层流翼套的风洞和飞行试验进行了仿真分析。数值仿真与风洞试验的压力系数分布一致性较好,在常压时仿真和风洞试验中转捩位置随攻角的变化规律基本一致。相较于机头处静压和机身最大截面处静压,采用大气数据系统测量的飞行高度换算的静压作为参考压力时,飞行试验获得的压力系数分布与仿真结果一致性更好;在设计状态和典型非设计状态数值仿真得到的翼套转捩位置与飞行试验结果十分吻合;采用动量法计算翼套截面阻力系数,数值仿真和飞行试验得到的自然层流减阻量差距在0.0002以内。

关键词: 自然层流, 机翼翼套, 数值仿真, 风洞试验, 飞行试验

Abstract: The development of green aviation has drawn increasing attention, while drag reduction by laminar flow region expansion is an important means to achieve energy conservation and emission reduction. This study simulates the wind tunnel and flight tests of a natural laminar flow wing glove by the numerical simulation method considering transition judgement. The pressure coefficient distribution of numerical simulation is consistent with that of the wind tunnel test, and the change in the transition location with angle of attack in numerical simulation is basically consistent with that in the wind tunnel test at atmospheric pressure. When the static pressure calculated from the flight height measured by the air data system, instead of that at the nose and the maximum cross section of the fuselage, is used as the reference pressure, the pressure coefficient distribution obtained from the flight test is more consistent with the simulation results. The transition positions of the wing glove obtained by numerical simulation in the design state and typical non-design state are in good agreement with that of the flight test. The momentum method is used to calculate the drag coefficient of the wing glove section, and the difference in drag coefficient reduction from the natural laminar flow between the numerical simulation and the flight test is smaller than 0.000 2.

Key words: natural laminar flow, wing glove, numerical simulation, wind tunnel test, flight test

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