• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >An experimental and numerical study on the dynamical behaviors of the rebound cavitation bubble near the solid wall
【24h】

An experimental and numerical study on the dynamical behaviors of the rebound cavitation bubble near the solid wall

机译：坚固墙附近的回弹空化泡沫动力学行为的实验与数值研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The final collapse of the rebound cavitation bubble may be more violent than its initial, resulting in more severe damage to the nearby structures. To better understand the dynamical behaviors of the rebound cavitation bubble, the multi-period evolution of the cavitation bubble near the solid wall is investigated experimentally and numerically. Due to multiple factors affecting the rebound cavitation bubble behaviors, a compressible two-phase solver considering phase change and thermodynamic effect simultaneously is developed in OpenFOAM in this study. Validations are conducted by comparing the numerical results with corresponding experimental data. The essential and comprehensive dynamics of the rebound cavitation bubble is well reproduced and analyzed, which helps reveal the underlying physical mechanisms. The potential damage is numerically quantified by the pressure peak at the wall center. The quantitative effect of the dimensionless standoff distance γ on the pressure peaks is analyzed with four distinct stages identified. Moreover, the maximum rebound radius, corresponding to the amount of the initial energy during the rebound stage, and maximum temperature within the bubble at different γ are also discussed. The results show that the maximum rebound bubble radius increases first and then decreases with the increase of γ. In addition, the effect of the γ on the maximum temperature is given with three distinct stages identified.
机译：回弹空化泡沫的最终崩溃可能比其初始更暴力，导致附近结构造成更严重的损坏。为了更好地了解回弹空化泡的动态行为，实验和数值研究了固体壁附近的空化泡沫的多周期演变。由于影响了回弹空化泡沫行为的多种因素，在本研究中，在OpenFoam中开发了考虑相变和热力学效果的可压缩的两阶段求解器。通过将数值结果与相应的实验数据进行比较来进行验证。回弹空化泡沫的基本和综合动态良好复制和分析，有助于揭示潜在的物理机制。通过壁中心的压力峰值在数值上量化潜在的损伤。分析了四个不同阶段的压力峰值上的无量纲距离γ的定量效果。此外，还讨论了对应于回弹阶段期间的初始能量的最大反弹半径，以及不同γ的泡沫内的最高温度。结果表明，最大回弹气泡半径首先增加，然后随着γ的增加而降低。另外，γ对最大温度的影响具有三个不同的阶段。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2021年第10期|121525.1-121525.16|共16页
  • 作者

    Jianyong Yin; Yongxue Zhang; Jianjun Zhu; Liang Lv; Lei Tian;

  • 作者单位

    College of Mechanical and Transportation Engineering China University of Petroleum Beijing 102249 China Beijing Key Laboratory of Process Fluid Filtration and Separation China University of Petroleum-Beijing Beijing 102249 China;

    College of Mechanical and Transportation Engineering China University of Petroleum Beijing 102249 China Beijing Key Laboratory of Process Fluid Filtration and Separation China University of Petroleum-Beijing Beijing 102249 China School of international education Hainan medical university Haikou 571199 China;

    College of Mechanical and Transportation Engineering China University of Petroleum Beijing 102249 China Beijing Key Laboratory of Process Fluid Filtration and Separation China University of Petroleum-Beijing Beijing 102249 China;

    Department of Thermal Engineering Chengde Petroleum College Chengde 067000 China;

    College of Mechanical and Transportation Engineering China University of Petroleum Beijing 102249 China Beijing Key Laboratory of Process Fluid Filtration and Separation China University of Petroleum-Beijing Beijing 102249 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Rebound cavitation bubbles; Thermodynamic effect; Phase change; Pressure peaks; Rebound radius;

    机译：反弹空化泡沫;热力学效应;相变;压峰;反弹半径;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号