考虑多种物理效应的轨控喷流数值计算研究  

Numerical Simulation of Orbit-controlled Jet Considering Multi-physical Effects

作　　者：万钊[1] 华如豪 陈琦[1] 江定武[1] 王新光[1] WAN Zhao;HUA Ruhao;CHEN Qi;JIANG Dingwu;WANG Xinguang(Computational Aerodynamic Institute,China Aerodynamic Research and Development Center,Mianyang 621000,Sichuan,China)

机构地区：[1]中国空气动力研究与发展中心计算空气动力研究所,四川绵阳621000

出　　处：《上海航天(中英文)》2025年第2期194-202,共9页Aerospace Shanghai(Chinese&English)

摘　　要：轨控喷流预测精度是高速拦截武器的关键技术。目前针对高空高马赫数条件下的喷流干扰问题研究还相对较少,此空域高速飞行环境下的多种物理效应对喷流干扰的影响规律还不够系统。通过数值求解带滑移边界条件的三维化学非平衡Navier-Stokes方程,分析了高温热化学非平衡效应、燃气二次燃烧效应、稀薄气体效应对轨控喷流干扰的影响,获得了不同来流条件下多种物理效应对轨控喷流干扰气动特性的影响规律。研究表明:高空高马赫数条件下,来流空气和燃气组分的高温离解反应是冷/热喷流差异的的主要因素,其影响程度随高度升高而较小,随马赫数增大而增大,稀薄气体效应对飞行器整体喷流干扰气动力/力矩的影响较小。The prediction accuracy of orbit-controlled jet is the key technology of high-speed interception weapons.Currently,there are scarce studies on the jet interaction at high altitudes and large Mach numbers,and the law of influence of various physical effects on the jet interaction during high-speed flight in this airspace is not systematic enough.By solving the three-dimensional chemical non-equilibrium Navier-Stokes equation with slip boundary conditions,the influence of the high-temperature thermochemical non-equilibrium effect,gas secondary combustion effect,and rarefied gas effect on the orbit-controlled jet interaction is analyzed,and the influence of various physical effects on the aerodynamic characteristics of the orbit-controlled jet interaction under different flow conditions is obtained.The results indicate that the high-temperature dissociation reaction of the incoming air and gas components is the main factor accounting for the difference between the cold air and hot gas at high altitudes and large Mach numbers,and the influence degree decreases when the altitude increases while increases when the Mach number increases.The influence of the rarefied gas effect on the interaction aerodynamic force/moment of the overall jet is minor.

关 键 词：高温真实气体效应 稀薄气体效应 热喷干扰 数值模拟 

分 类 号：V211.4[航空宇航科学与技术—航空宇航推进理论与工程] V411.3