稀颗粒群双流体模型应用于底部排气弹减阻性能研究

Rare particle two-fluid model used for base drag reduction performance about base bleed projectile

依据稀颗粒群假定下的双流体简化模型 ,采用NND和MacCormack方法 ,本文对底部排气弹底部减阻性能进行了研究。分析了非平衡气 -粒两相流中颗粒相浓度变化对底排弹减阻性能的影响。和实验比较 。

In this paper, based on the simplified two fluid model under the assumption of dilute gas particle suspensions, the projectile base flow about the base bleed projectile has been investigated by using NND and Mac Cormack motheds. The basic features of the now equilibrium gas particle flow which are different from particle density that affects base drag reduction be changed. Compared with is all the batter experiment,That is better about and rare particle two fluid model numerical research.