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空化器绕射弹构型空化流动特性研究

姚忠 祁晓斌 夏方超 郭养宁

数字海洋与水下攻防2025,Vol.8Issue(1):54-60,7.
数字海洋与水下攻防2025,Vol.8Issue(1):54-60,7.DOI:10.19838/j.issn.2096-5753.2025.01.007

空化器绕射弹构型空化流动特性研究

Study on Cavitation Flow Characteristics of Cavitator around Projectile Configuration

姚忠 1祁晓斌 1夏方超 1郭养宁1

作者信息

  • 1. 西北机电工程研究所,陕西 咸阳 712099
  • 折叠

摘要

Abstract

In order to optimize the projectile head shape,numerical simulations of the cavitation flow field of different cavitator configurations,including inverted cone-shaped,hemispherical,and cylindrical are conducted.The results indicate that under the same cavitation number,the inverted trapezium cavitator produces the largest cavitation profile and is more prone to cavitation generation.Cylindrical cavitator comes in second place,while hemispherical cavitator is less prone to cavitation.The turbulent kinetic energy is closely related to the generation of cavities,and the turbulent kinetic energy is highest near the inverted trapezium cavitator,so its cavity size is also the largest.The diameter ratio between the smaller and larger bottom surfaces of the inverted trapezium cavitator has a significant impact on the high-speed cavitation flow around the projectile.As this ratio increases,the thickness of the cavity increases,but it also leads to a significant increase in the navigation resistance coefficient.Overall,the inverted cone-shaped cavitator is easier to generate cavitation and can provide support for the optimal design scheme of supercavitating projectiles.

关键词

超空泡射弹/倒梯台空化器/空化绕流/空泡形态

Key words

supercavitation projectile/inverted trapezium cavitator/cavitating flow field/cavity shape

分类

武器工业

引用本文复制引用

姚忠,祁晓斌,夏方超,郭养宁..空化器绕射弹构型空化流动特性研究[J].数字海洋与水下攻防,2025,8(1):54-60,7.

基金项目

陕西省自然科学基础研究计划资助项目"高速射弹异步并联入水空化流动与干扰特性研究"(2024JC-YBQN-0441). (2024JC-YBQN-0441)

数字海洋与水下攻防

2096-5753

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