回转体低速串联入水空泡及运动特性试验研究

余德磊;曹伟;魏英杰

兵工学报 ›› 2020, Vol. 41 ›› Issue (7) : 1375-1383.

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  • 主管：中国科学技术协会

    主编：许毅达

    ISSN 1000-1093

    　

  • 主办：中国兵工学会

    出版：《兵工学报》 编辑部

    CN 11-2176/TJ

《兵工学报》是我国国防科技领域最具影响力的学术期刊之一，创刊于1979年，目前被国内所有重要数据库收录，其综合评价指标近年来一直名列兵工技术类科技期刊的首位；《兵工学报》目前还被国际上著名的检索机构美国......
兵工学报 ›› 2020, Vol. 41 ›› Issue (7) : 1375-1383. DOI: 10.3969/j.issn.1000-1093.2020.07.015
论文

回转体低速串联入水空泡及运动特性试验研究

  • 余德磊， 曹伟， 魏英杰
作者信息 +

Experimental Reaserch on Cavitation and Motion Characteristics of Low-speed Water Entry of Rotary Bodies in Tandem

  • YU Delei, CAO Wei, WEI Yingjie
Author information +
文章历史 +

摘要

为研究回转体串联入水过程中的空泡演化及运动特性，基于高速摄像及时序释放系统，开展了不同入水初始间距的回转体低速串联入水试验。利用图像处理技术对采集图像序列中的回转体运动进行识别提取，得到入水初始间距对回转体的入水空泡、纵向位移及偏转角的影响规律。试验结果表明：较小入水初始间距的回转体串联入水过程中，两运动体的空泡结构及尺寸均受到影响；随着入水初始间距增大，回转体串联入水过程中依次出现碰撞扰动、封闭空腔扰动、过渡扰动与弱扰动4种运动模式，在不同的运动模式中，两运动体的空泡及运动特性存在较大差异，其中碰撞扰动模式对回转体的运动特性影响最大。

Abstract

In order to study the evolutions and motion characteristics of cavitations in the process of water entry in tandem, the high-speed camera and time release system are used in testing the low-speed tandem water entry of rotary bodies at different initial spacing. The motion characteristics of rotary bodies are identified and extracted using image processing technology, and the influence of the initial spacing of water entry on cavitation evolution, longitudinal displacement and deflection angle of rotary body was obtained through test. The test results show that the cavitation structures and sizes of two rotary bodies are affected during the water entry in tandem at the small initial spacing. With the increase in the initial spacing of water entry, four motion modes, including colliding disturbance, closed cavity disturbance, transition disturbance and weak disturbance, arise in the process of tandem water entry of rotary bodies. In different motion modes, the vacuolizations and motion characteristics of two rotary bodies are quite different. The colliding disturbance mode has the greatest influence on the motion characteristics of rotary body. Key

关键词

两运动体 / 低速入水 / 空泡演化 / 运动特征

Key words

twomotionbodies / low-speedwaterentry / cavitationevolution / motionfeature

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导出引用
余德磊， 曹伟， 魏英杰. 回转体低速串联入水空泡及运动特性试验研究. 兵工学报. 2020, 41(7): 1375-1383 https://doi.org/10.3969/j.issn.1000-1093.2020.07.015
YU Delei, CAO Wei, WEI Yingjie. Experimental Reaserch on Cavitation and Motion Characteristics of Low-speed Water Entry of Rotary Bodies in Tandem. Acta Armamentarii. 2020, 41(7): 1375-1383 https://doi.org/10.3969/j.issn.1000-1093.2020.07.015

基金

国家自然科学基金项目（11672094）

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第41卷第7期2020年7月
兵工学报ACTA ARMAMENTARII
Vol.41No.7Jul.2020

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