水下连发超空泡射弹的流动与阻力特性研究

施红辉; 周东辉; 周栋; 贾会霞

doi:10.7638/kqdlxxb-2019.0096

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水下连发超空泡射弹的流动与阻力特性研究

专栏——空化流动与空泡 | 更新时间：2026-05-28

- 水下连发超空泡射弹的流动与阻力特性研究
- Research on flow and drag characteristics of under water successively fired supercavitating projectiles
- 空气动力学学报 2020年38卷第4期页码：771-779
- 作者机构：
  
  浙江理工大学机械与自动控制学院,杭州,310018
- 作者简介：
  
  施红辉(1962-), 男, 江苏启东人, 教授、博导, 研究方向:超空泡流动、流体界面RM不稳定性.E-mail:hhshi@zstu.edu.cn
  周东辉(1989-), 讲师, 博士研究生, 研究方向:超空泡流动.E-mail:dhui_zhou@163.com
- 基金信息：
  
  浙江省自然科学基金（LY16A020003）
- DOI：10.7638/kqdlxxb-2019.0096
  中图分类号： O352;TJ630
- 纸质出版：2020
- 稿件说明：
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施红辉, 周东辉, 周栋, 贾会霞. 水下连发超空泡射弹的流动与阻力特性研究[J]. 空气动力学学报, 2020, 38(4): 771-779.

SHI Honghui, ZHOU Donghui, ZHOU Dong, et al. Research on flow and drag characteristics of under water successively fired supercavitating projectiles[J]. 2020, 38(4): 771-779.
施红辉, 周东辉, 周栋, 贾会霞. 水下连发超空泡射弹的流动与阻力特性研究[J]. 空气动力学学报, 2020, 38(4): 771-779. DOI： 10.7638/kqdlxxb-2019.0096.

SHI Honghui, ZHOU Donghui, ZHOU Dong, et al. Research on flow and drag characteristics of under water successively fired supercavitating projectiles[J]. 2020, 38(4): 771-779. DOI： 10.7638/kqdlxxb-2019.0096.

摘要

为了研究连发射弹在水下做自然减速运动过程中的超空泡演化规律和阻力特性，基于N-S方程的有限体积法，引入VOF多相流模型和Schnerr-Sauer空化模型，结合动网格技术，分别建立了水下两连发射弹和三连发射弹的数值计算模型，并进行了数值模拟研究。该研究得到了两连发射弹和三连发射弹的超空泡演化规律；分析了多发射弹之间压力场的互相影响；并结合超空泡演化规律，分析了超空泡演化过程对连发射弹运动的影响机理；获得了连发射弹的阻力特性曲线。研究结果表明：水下连发射弹各自形成的超空泡流场互相影响；后发射弹与它自身形成的超空泡发生分离并进入到前发射弹的超空泡内部；后发射弹进入前发射弹的超空泡内部后所受阻力几乎为零，其速度保持不变，而前发射弹的速度继续衰减，导致后发射弹将追赶上前发射弹并发生追尾碰撞；前、后发射弹发生追尾后，在前发射弹的头部流动分离点和追尾处，超空泡壁面出现扰动，存在扰动的空泡壁面会发生颈缩，空泡逐渐从此位置分裂。

Abstract

In order to study supercavities evolution laws and drag characteristics of underwater successively fired projectiles during the natural deceleration

the calculation model of underwater of two or three successively fired projectiles is separately established based on the finite volume method of N-S equation

introduced VOF multiphase flow model and Schnerr-Sauer cavitation model

combined with dynamic grid technology. The evolution law of supercavities induced by underwater two or three successively fired projectiles was obtained. The interaction of pressure fields between multiple projectiles is analyzed. Combined with the evolution law of supercavities

the influence mechanism of supercavities evolution process on projectiles' motion was analyzed. The drag characteristic curves of successively fired projectiles are obtained. The results show that the supercavitating flow fileds of successively fired projectiles interact with each other; the drag force of the latter projectile entering the supercavity of the former projectile is almost zero

and its velocity remains unchanged

while the velocity of the former projectile continues to decay

resulting in the latter projectile catching up with the former projectile and rear-end collision; the shape of supercavity is disturbed at the head of the former projectile and the position of the rear-end collision

the wall of the supercavity with disturbance causes necking and the supercavity gradually split from this position.

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references

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