航空学报2025，Vol.46Issue(22)：1-15,15.DOI:10.7527/S1000-6893.2024.31839
基于变坡度Ramp-VG阵列的超声速飞行器气动光学效应调控
Aero-optical effect regulation of supersonic vehicles based on variable-slope Ramp-VG arrays
摘要
Abstract
To address the aero-optical effects caused by supersonic vehicles flying within the atmosphere,this study proposes an array of variable-slope Ramp Vortex Generator(Ramp-VG).By adjusting slope parameters,dynamic light field regulation is achieved across transonic and supersonic conditions,effectively reducing optical distortions un-der different flight mission profiles.Based on Large Eddy Simulation(LES)and ray-tracing methods,a calculation and evaluation model for aero-optical effects is established to compare the performance of variable-slope Ramp-VG arrays under different flight speeds.The results demonstrate that Ramp-VG arrays adapted to boundary layer characteristics can effectively improve the flow characteristics over the optical window,delay turbulent transition,and significantly suppress optical distortions caused by flow separation and turbulence development at the rear edge of recessed win-dows.At Ma=3.2,a 5° Ramp-VG reduces wavefront distortion by 24.6%,while a 15° Ramp-VG at Ma=2 achieves a distortion suppression rate of 46.5%.Furthermore,the study reveals the flow field and optical field regulation mecha-nisms of variable-slope Ramp-VG arrays and proposes a light field regulation strategy.This provides new insights for optimizing optical performance under different Mach numbers,flight altitudes,and imaging modes,as well as for de-signing optical windows under complex flight conditions.关键词
超声速飞行器/气动光学效应/自适应飞行器/波前畸变/Ramp-VG阵列Key words
supersonic vehicles/aero-optical effects/morphing aircraft/wavefront distortion/Ramp-VG Arrays分类
航空航天引用本文复制引用
孙健维,邢思远,田建东,杨永明,田大鹏..基于变坡度Ramp-VG阵列的超声速飞行器气动光学效应调控[J].航空学报,2025,46(22):1-15,15.基金项目
中国科学院战略先导项目(XDB1050402) （XDB1050402）
国家自然科学基金(52192633) Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 1050402) （52192633）
National Natural Science Foundation of China(52192633) （52192633）
