航空学报2026，Vol.47Issue(13)：72-82,11.DOI:10.7527/S1000-6893.2026.33206
AC-DBD等离子体控制的飞行减阻试验
Tests on in-flight drag reduction using AC-DBD plasma flow control
摘要
Abstract
Dielectric Barrier Discharge(DBD)plasma actuators have demonstrated significant potential for active flow control,owing to their distinct advantages,including the absence of moving mechanical parts,a lightweight structure,and rapid response time.24 pairs of alternating current DBD plasma actuators were arranged on a Davis wing.The flow control effectiveness and drag-reduction performance were systematically evaluated through wind-tunnel force measurements,Particle Image Velocimetry(PIV)flow-field measurements,and actual flight tests.Wind tunnel results indicate that plasma actuation effectively modulates near-wall flow structures.The wall jet induced by the actuation in-teracts with near-wall structures,leading to changes in coherent structures:compression of the streamwise extent,enlargement of the spanwise streak spacing,and a reduction in the inclination angle from 15.94° to 9.20°.This flow-control effect suppresses the lift-up motion of quasi-streamwise vortex pairs,weakening momentum transport and at-tenuating Reynolds shear stress in the near-wall region,thereby reducing skin-friction drag.Based on these findings,circling flight tests were conducted using an unmanned aerial vehicle at a fixed altitude and airspeed.Drag reduction effects were evaluated by monitoring changes in motor power under conditions of an airspeed of 24 m/s,a peak-to-peak actuation voltage of 10 kV,and an angle of attack of 4°(close to the maximum lift-to-drag ratio state).The re-sults demonstrate that upon activating plasma actuation,the aircraft's ground speed increased by approximately 7.1%,with a peak drag reduction of 7.59%and an average drag reduction of 6.15%.The consistent drag-reduction trends observed in both wind tunnel and flight tests validate the effectiveness and engineering feasibility of this flow-control method in real-world flight environments.关键词
流动控制/飞行试验/气动力测量/等离子体/减阻Key words
flow control/flight test/aerodynamic measurement/plasma/drag reduction分类
航空航天引用本文复制引用
耿玺,董鹏昌,孙琪杰,孙志坤,朱赫,钱晓辉,程克明,史志伟..AC-DBD等离子体控制的飞行减阻试验[J].航空学报,2026,47(13):72-82,11.基金项目
国家自然科学基金(92471111,52572409) （92471111,52572409）
航空科学基金(20240012052001) （20240012052001）
直升机动力学全国重点实验室基金(ZAG2500624) National Natural Science Foundation of China(92471111,52572409) （ZAG2500624）
Aeronautical Science Foundation of China(20240012052001) （20240012052001）
National Key Laboratory Foundation of Helicopter Dynamics(ZAG2500624) （ZAG2500624）
