化学反应对超音速混合层发展的影响  

THE INFLUENCE OF CHEMICAL REACTIONS ON THE SUPERSONIC-MIXING-LAYER DEVELOPMENT

作　　者：张耘隆 徐珊姝 廉永正 沈丹 吴彦森 裴金亮 ZHANG Yunlong;XU Shanshu;LIAN Yongzheng;SHEN Dan;WU Yansen;PEI Jinliang(Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China)

机构地区：[1]北京宇航系统工程研究所,北京100076

出　　处：《力学与实践》2017年第3期245-250,244,共7页Mechanics in Engineering

摘　　要：超音速混合层流动发展的研究对于了解超音速燃烧过程具有重要意义.基于耦合详细化学反应动力学机理的高精度数值模拟,分析了化学反应对超音速混合层发展过程的影响.主要分析了在两种燃烧状态下化学反应对混合层的演化过程和混合层厚度的影响,此外从涡动力学角度,分析了化学反应对混合层厚度的影响机理.The development of the supersonic mixing layer is an important factor in the supersonic combustion.In this paper,the in°uence of the chemical reaction on the development of the supersonic mixing layer is analyzed based on results obtained by the high-solution numerical methods with detailed chemical kinetics.The evolvement of the supersonic mixing layer and the mixing layer thickness under the e?ect of chemical reaction are analyzed in two di?erent combustion modes.The in°uence of the chemical reaction on the supersonic mixing layer thickness is explained from the aspect of vertex dynamics.

关 键 词：超音速平面混合层 化学反应 混合层厚度 数值计算 

分 类 号：O357.5[理学—流体力学]