文中利用Fluent和动网格知识,针对某集束武器的三管并联发射建立仿真模型,在考虑迟发火影响的前提下,通过求解N-S方程,模拟了迟发火与多重耦合影响下膛口流场发展变化过程。通过与正常射击时的仿真模拟对比发现:流场发展与运动弹丸之间是一个相互耦合的过程;在考虑迟发火影响时,弹丸运动姿态较正常射击时发生较大的恶化,使弹丸射击精度产生较大的下降。对比研究结果对集束武器射击的控制具有重要意义。

The knowledge of Fluent and dynamic mesh was used to establish simulative model for a three-gun cluster weapon, based on the influence of delayed firing, and the N-S equation was calculated to simulate the process of muzzle flow field influenced by multiple coupling and delayed firing. Compared with the numerical simulation of correctly shooting, the influences of flow field and the projectile are mutual; The projectile posture is more deteriorated than the normal firing with consideration of the influence of delayed firing and the shooting precision has a large drop. The simulation results have important value for the command of the shooting of cluster weapon.