弹底射流流场波谱规律数值分析  

NUMERICAL ANALYSIS OF BASE FLOW CHARACTERISTICS IN PROJECTILE

作　　者：杨邦翔[1] 

机构地区：[1]南京理工大学动力工程学院

出　　处：《弹道学报》1998年第3期37-39,43,共4页Journal of Ballistics

摘　　要：数值模拟了非定常底部超音速射流混合流场，给出了射流流场的宏观结构及其发展规律，分析了射流波谱特性．数值模拟精度合理，为此类流动提供了一种预测方法．Two unsteady base flows in supersonic projectile are simulated numerically. The numerical results manifest the flow macrostructures and their development agreeing well with the available shadow photos. The flow characteristics are analysed. These simulation results are reasonable accurate, and a predictive method for such flow problems is presented.

关 键 词：数值分析 射流波谱 弹底流场 弹丸空气动力学 

分 类 号：TJ011.2[兵器科学与技术—兵器发射理论与技术]