水反应金属燃料发动机三维两相燃烧数值模拟  

Numerical simulation on 3D two-phase reaction flow in water/metal fuel motor

作　　者：李芳[1] 张为华 王中伟[1] 夏智勋[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《固体火箭技术》2007年第5期384-387,共4页Journal of Solid Rocket Technology

基　　金：国家自然科学基金项目(50376071)

摘　　要：用三维湍流N-S方程及颗粒轨道模型描述水反应金属燃料发动机内部喷雾两相湍流燃烧过程。通过耦合求解气液两相流模型方程,得到发动机燃烧流场。通过模拟Mg与水的反应,分析比较了一次和二次进水方案的不同流场特性。研究结果表明,二次进水方案更有利于火焰稳定和提高燃烧性能。Two-phase turbulent combustion process of water/metal fuel motor was described with three-dimensional N-S equations and discrete particles model. The combustion field of the motor was obtained by coupling two-phase equations. The different characteristics of flow field between primary and secondary inlet schemes were analyzed by means of simulation reaction of magnesium and water. The results show that secondary inlet scheme is favorable to stabilization of the flame and improvement of the combustion performance

关 键 词：水反应金属燃料发动机 三维两相燃烧流动 一次进水方案 二次进水方案 火焰稳定 

分 类 号：V439[航空宇航科学与技术—航空宇航推进理论与工程]