多体空气动力学研究进展  

RESEARCH PROGRESS ON MULTIBODY AERODYNAMICS

作　　者：宋威[1] 艾邦成[1] Song Wei;Ai Bangcheng(Aerodynamics Science Center,China Academy of Aerospace Aerodynamics,Beijing 100074,China)

机构地区：[1]中国航天空气动力技术研究院空气动力科学中心,北京100074

出　　处：《力学学报》2022年第6期1461-1484,I0001,共25页Chinese Journal of Theoretical and Applied Mechanics

摘　　要：多体飞行器普遍存在于航空航天、空天和武器领域中,主要有以下三大类型:(1)多个飞行器相互不接触的近距离飞行;(2)多体飞行器相互接触或组合飞行;(3)多体飞行器回收或解锁分离过程的相对运动.多体飞行器在飞行、回收或分离过程中存在相互的流场干扰或作用,使多体飞行器具有不同于孤立体飞行器的流动物理或特征,特别是在超声速、高超声速的多体流动中,多体间存在多重激波反射、衍射以及激波与旋涡、激波与边界层相互干扰或作用,这些复杂流动能显著地改变多体飞行器的空气动力学特性.作者引入“多体空气动力学”概念对多体飞行器这一类问题进行概括和总结,并阐述其基本内涵、应用场景和研究方法/手段及典型多体构型的超声速/高超声速流动结构和特征.Multibody vehicle widely exists in the fields of aerospace and weapon system.There are three main types for the multibody vehicle system.Firstly,multiple vehicles are in close proximity flight that do not touch each other,such as formation flight and towed flight.Secendly,multibody vehicle are in contact with each other or combined to flight as a whole,such as aircraft-store carriage,the booster-flight of multistage vehicles,etc.Finally,multibody vehicle is in the relative motion after recovery or separation,such as aircraft-store separation,stage separation of multistage vehicles,etc.Multibody interference or interaction universally exists in the flowfield of multibody vehicle during steady or unsteady flight and dynamic separation,which makes the flow physics or characteristics of multibody vehicle different from isolated-body vehicle,especially in supersonic and hypersonic flow.There are multiple shock-wave reflection and diffraction,interference or interaction between shock-wave and vortex,shock-wave and boundary layer among multibody vehicle,which can significantly change the aerodynamic characteristics of multibody vehicle.The concept of“multibody aerodynamics”is advocated to summarize the field of multibody vehicle,and its basic connotation,application fields and flow characteristics of typical multibody configurations are explained,in order to point out the direction and ideas on aerodynamics and separation dynamics of multibody vehicle for the future research.

关 键 词：多体飞行器 多体空气动力学 多体分离动力学 孤立体飞行器 激波与边界层相互干扰 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程] V212.1