实验流体力学2016，Vol.30Issue(5)：29-35,7.DOI:10.11729/syltlx20150154
钝体超空泡倾斜穿过自由面出水实验及数值模拟
Experimental and numerical study of oblique water exit in free surface penetration by a blunt body’s supercavity
摘要
Abstract
The supercavitation technique has important military applications such as underwa-ter launched ballistic missiles,high-speed torpedo,airborne sea mine clearance system,etc.The relevant fundamental study was carried out in USSR and USA in 1960’s and 1970’s era respec-tively.Since the year of 2001,Chinese scientists have begun intensive and broad study on this subj ect and many innovative results have been achieved.This paper presents the research on the inclined water-exit of supercavitating vehicles through experimental,theoretical and numerical methods.It is found that when the supercavity is in touch with the free surface,a ventilated cavi-ty is formed easily.When the underwater body j umps into air,it obtains a sudden increase in ve-locity.Using Ansys14.0 software and VOF multiphase flow model,the whole process from the cavity growth to its collapse in the inclined water-exit has been simulated.The computational re-sults show that when the supercavitating body approaches the free surface,it piles up and the pressure at the lower part of the cavity is greater than that at the upper part of the cavity.How-ever,after comparing with the experimental data,it is found that the cavitation model of Schnerr and Sauer used in the software is not suitable for the ventilation of the supercavity after its inter-action with the free surface.This paper’s work emphasizes the research strategy of conducting all of the experiment,theoretical analysis and numerical simulation for the problem.关键词
超空泡实验/倾斜出水/理论分析/数值模拟Key words
supercavity experiment/inclined water-exit/theoretical analysis/numerical simula-tion分类
数理科学引用本文复制引用
施红辉,陈波,王昀..钝体超空泡倾斜穿过自由面出水实验及数值模拟[J].实验流体力学,2016,30(5):29-35,7.基金项目
浙江省自然科学基金项目(LY16A020003) （LY16A020003）
