航行体水中运动达到一定速度时，在航行体肩部及尾部会产生空泡，直接影响航行体的水动力特性及稳定性控制，当空泡进入高压区时瞬间发生溃灭，产生极高的压力冲击对航行体具有很强的破坏作用。本文利用数值计算方法对某航行体水下不同运动速度下的空泡状态、阻力系数进行研究，对该航行体水动力特性及水下载荷研究提供参考。
When the projectile moves up to one speed in the water, the cavity will occur on the shoulder and tail of the projectile. The cavity will influence the hydrodynamic characteristics and the stabilization directly，on the other hand, it will be collapsed when it enters into high pressure area, at the same time, the terribly pressure concussion occurs, and it possesses strongly destructive energy to the projectile. The cavity states and the coefficients of resistance under different moving speed of the projectile is researched by numerical simulation in the paper, the result provides a guide to the research on the load of the projectile underwater.
2021,43(10): 38-40 收稿日期：2021-05-06
DOI：10.3404/j.issn.1672-7649.2021.10.009
分类号：U661.1
作者简介：胡仁海(1980-),男,硕士,高级工程师,主要从事水下发射环境及载荷研究
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