基于XFlow的仿生扑翼飞行器机翼气动特性分析

doi:10.12068/j.issn.1005-3026.2021.06.010

东北大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (6): 821-828.DOI: 10.12068/j.issn.1005-3026.2021.06.010

基于XFlow的仿生扑翼飞行器机翼气动特性分析

张志君¹，陈默¹，杨贺捷²，孙霁宇^{3, 4}

(1. 吉林大学机械与航空航天工程学院，吉林长春130022； 2. 吉林大学物理学院，吉林长春130012；3. 吉林大学生物与农业工程学院，吉林长春130022； 4. 吉林大学工程仿生教育部重点实验室，吉林长春130022)

修回日期:2020-07-20 接受日期:2020-07-20 发布日期:2021-06-23
通讯作者: 张志君
作者简介:张志君(1974-)，男，吉林舒兰人，吉林大学教授，博士生导师；孙霁宇(1976-)，女，吉林省吉林市人，吉林大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(31970454).

Analysis of Aerodynamic Characteristics of Bionic Flapping Wing Aircraft Based on XFlow

ZHANG Zhi-jun¹， CHEN Mo¹， YANG He-jie²， SUN Ji-yu^3,4

1. School of Mechanical and Aerospace Engineering， Jilin University， Changchun 130022， China; 2. College of Physics， Jilin University， Changchun 130012， China; 3. School of Biological and Agricultural Engineering， Jilin University， Changchun 130022， China; 4. Key Laboratory of Biomimetic Engineering， Ministry of Education， Jilin University， Changchun 130022， China.

Revised:2020-07-20 Accepted:2020-07-20 Published:2021-06-23
Contact: SUN Ji-yu
About author:-
Supported by:
-

摘要/Abstract

摘要： 通过空间曲柄摇杆结构产生的急回特性来实现仿生飞行器扑翼运动.为了探究仿生扑翼飞行器的气动特性的影响因素，采用玻尔兹曼模型的粒子跟踪方法模拟扑动过程中气动特性，基于计算流体力学仿真软件XFlow对不同翼型、翼展、翼平面形状进行仿真分析并探究对升力和推力的影响.结果表明:翼型弯度和翼展的增大能够增加扑翼飞行器的升力系数，推力系数随着弯度的增大而变小；通过综合分析得到翼展长度在2.5倍弦长时，气动特性最佳；不同翼面形状的机翼具有不同的气动性能，相对于机翼后缘几何形状，前缘对气动特性的影响较大.研究结果为扑翼飞行器机翼的系统设计提供了有益的指导.

关键词: 仿生；扑翼飞行器；XFlow；机翼形状；气动特性

Abstract: The bionic flapping wing motion is realized by the rapid return characteristic of space crank and rocker structure. In order to explore the influencing factors of the aerodynamic characteristics of bionic flapping aircraft， the particle tracking method of Boltzmann model is adopted to simulate the aerodynamic characteristics during flapping. Based on the computational fluid dynamics simulation software XFlow， a simulation analysis is carried out for different airfoils， wingspan and wing plane shapes and the influence on lift and thrust is explored. The results show that the lift coefficient of the flapping wing aircraft increases with the rise of the airfoil curvature and wingspan， and the thrust coefficient decreases with the increase of the bending degree. Through the comprehensive analysis， it is found that when the wingspan length is 2.5 times the chord length， the aerodynamic characteristics are the best. Wings with different wing surface shapes have different aerodynamic characteristics. Compared with the trailing edge geometry， the leading edge has a greater impact on the aerodynamic characteristics.

Key words: bionic; flapping wing aircraft; XFlow; wing shape; aerodynamic characteristics

中图分类号:

V211

张志君，陈默，杨贺捷，孙霁宇. 基于XFlow的仿生扑翼飞行器机翼气动特性分析[J]. 东北大学学报（自然科学版）, 2021, 42(6): 821-828.

ZHANG Zhi-jun， CHEN Mo， YANG He-jie， SUN Ji-yu. Analysis of Aerodynamic Characteristics of Bionic Flapping Wing Aircraft Based on XFlow[J]. Journal of Northeastern University(Natural Science), 2021, 42(6): 821-828.

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基于XFlow的仿生扑翼飞行器机翼气动特性分析

Analysis of Aerodynamic Characteristics of Bionic Flapping Wing Aircraft Based on XFlow

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