摘要
为了研究扑翼飞行器柔性翅的气动特性,参照典型鸽子翅翼的参数特征,构建刚性翅与两类柔性翅模型。借助Workbench平台,采用流固耦合技术,对扑翅过程中的流场状态进行数值计算,得到了来流为11 m/s,攻角为8°条件下翅翼扑动中的升力、阻力变化特点。通过对不同翅翼升阻力特性进行对比,发现了扑翼柔性翅的波动时域特征,并进一步对波动时域的成因进行了分析。使用高速摄影对鸽子的扑动过程进行实验研究,将实验结果与数值计算的结果进行了比对,验证了波动时域存在的合理性。
In order to study the aerodynamic characteristics of flexible wing,the rigid wing and two kinds of flexible wing models were constructed.Using workbench platform and fluid structure coupling technology,the flow field state in the process of flapping was numerically calculated,and the characteristics of lift and drag in flapping wing were obtained when the inflow is 11 m/s and the angle of attack is 8°.Through the comparative analysis,the characteristics of wave time domain of flapping flexible wings were found.The flow field around the wing in wave time domain was analyzed.The flutter process of pigeon was analyzed by high-speed photography,and the comparison between the flutter process and the numerical results shows that the existence of wave time domain is reasonable.
作者
刘旭博
王芬芬
于纪言
LIU Xubo;WANG Fenfen;YU Jiyan(Chinese Flight Test Establishment, Xi’an 710089, China;Nanjing University of Science and Technology, Nanjing 210094, China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2021年第1期206-212,共7页
Journal of Ordnance Equipment Engineering
关键词
扑翼
柔性翅
数值计算
流固耦合
波动时域
flapping wing
flexible wing
numerical calculation
FSI
wave time domain
