南京航空航天大学学报（英文版）2024，Vol.41Issue(z1)：1-12,12.DOI:10.16356/j.1005-1120.2024.S.001
基于间歇扰动的NACA633-421翼型层流分离泡流动控制研究
Flow Control with Intermittent Disturbance for the Laminar Separation Bubble on a NACA633-421 Airfoil
李琳恺 1王世龙1
作者信息
- 1. 南京航空航天大学航空学院,南京 210016,中国
- 折叠
摘要
Abstract
This study investigates the aerodynamic performance of the NACA 633-421 airfoil and the effectiveness and feasibility of intermittent disturbance flow control methods on laminar separation bubbles(LSBs).It is found that the average velocity and influence range of the synthetic jet actuator increase with the increasing of driving frequency and driving amplitude.LSB occurs at Re=1.0×105,and ruptures at α=6°.But with intermittent disturbance control,the stall angle of attack(AoA)increases while significantly reducing drag.Research shows that although certain disturbance cannot fully recover from LSB stall,decreasing driving amplitude partially restores wing aerodynamic performance,more effectively than increasing driving amplitude.关键词
层流分离泡/间歇扰动控制/激励频率/驱动振幅/合成射流激励器Key words
laminar separation bubble/intermittent disturbance control/driving frequency/driving amplitude/synthetic jet actuator分类
航空航天引用本文复制引用
李琳恺,王世龙..基于间歇扰动的NACA633-421翼型层流分离泡流动控制研究[J].南京航空航天大学学报（英文版）,2024,41(z1):1-12,12.
