主动流动控制下载荷分离对进气道流场的影响研究  

作　　者：周宇轩 郭静亮 

机构地区：[1]南京航空航天大学,南京210016 [2]湖南山河华宇航空科技有限公司,湖南株洲412000

出　　处：《科技创新与应用》2024年第25期21-23,28,共4页Technology Innovation and Application

基　　金：湖南创新型省份建设专项经费资助(2021GK1020)。

摘　　要：该文针对由于工程约束载荷舱布置在进气道前方的内外流耦合载荷投放分离问题,运用计算空气动力学耦合六自由度模型和动态嵌套网格技术模拟载荷投放分离过程,并使用主动流动控制方法改善流场,分析评估有无主动流动控制时内外流耦合一体的载荷投放分离运动特性及对内流进气道流场的影响。结果表明,主动流动控制可将进气道畸变指数DC(60)由0.5612降至0.4658,主动流动控制对改善进气道流场品质有较大收益。In this paper,aiming at the problem of coupled load release and separation of internal and external flow in front of the inlet due to engineering constraints,the computational aerodynamic coupled six-degree-of-freedom model and dynamic nested grid technique are used to simulate the process of load release and separation,and the active flow control method is used to improve the flow field.The motion characteristics of load release separation of internal and external flow coupling with or without active flow control and its influence on the flow field of internal flow inlet are analyzed and evaluated.The results show that the distortion index DC(60)of the inlet can be reduced from 0.5612 to 0.4658 by active flow control,and the active flow control can improve the quality of inlet flow field.

关 键 词：内埋载荷分离 进气道流场 嵌套网格 气动干扰 主动流动控制 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]