IMECH-IR  > 流固耦合系统力学重点实验室
高速入水空泡表面闭合机理研究
杜岩; 王志英; 王静竹; 王一伟
Source Publication第十三届全国流体力学学术会议摘要集(下)
2024-08-09
Pages231
Conference Name第十三届全国流体力学学术会议(下)
Conference Date2024-08-09
Conference Place中国黑龙江哈尔滨
Abstract本文采用实验观测和数值模拟结合的方法研究了高速入水空泡表面闭合问题。实验上获得了表面闭合时间随入水速度的变化规律,建立了无量纲表面闭合时间随空化数变化的数量关系:当U0<800m/s时,TsU0/D0∞σ—0.913;当U0>800m/s时,TsU0/D0∞σ—1.784。结合数值模拟分析了空化影响表面闭合的机理,结果表明,入水后空泡内部因为空化效应产生了蒸汽相,导致了外部空气进入泡内时发生阻塞,空泡颈口处压强较高,内外压差较低,延缓了表面闭合的发生。
Keyword高速入水 表面闭合 空化 阻塞效应
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/97900
Collection流固耦合系统力学重点实验室
Affiliation中国科学院力学研究所流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
杜岩,王志英,王静竹,等. 高速入水空泡表面闭合机理研究[C]第十三届全国流体力学学术会议摘要集(下),2024:231.
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