下潜深度对火箭深弹中部补气减阻的影响

利用Fluent软件研究下潜深度对火箭深弹阻力特性以及中部补气减阻效果的影响,通过对下潜速度和通气量两个影响因素的分析,得到下潜深度在0 ～ 200m范围内火箭深弹的阻力计算结果.结果表明,相同速度下,下潜深度越大,火箭深弹的阻力系数和表面空泡形状越小；下潜深度对中部补气的减阻效果影响较小；增大通气量,可有效地增大中部补气的减阻效果.

Research on the Influence of Submergence Depth on Resistance of Rocket Depth

Using Fluent,the effect of submergence depth on the risistance of rocket depth is studied in this paper.By analyzing two factors,submergence speed and Ventilation,the calculation result of resistance of rocket depth is achieved,within the range of submergence depth 0~200m.It is shown that,at the same velocity,the greater submergence depth is,the smaller resistance coefficient and bubbles formed on the surface will be;Submergence depth plays a minor role in reducing resistance of supplement air at middle projectile.Increasing ventilation can strongly improve the effect of resistance reduction in the course of supplementing air at middle projectile.