基于OpenFOAM的缺陷壁面附近空化泡动力学过程模拟
作者:
作者单位:

(1.贵州大学电气工程学院,贵州 贵阳550025;2.中国石油大学(北京)机械与储运工程学院,北京102249;3.中国石油大学(北京)过程流体过滤与分离技术北京市重点实验室,北京102249 )

作者简介:

杜先荣(1998—),男,硕士研究生,主要从事空化泡数值模拟研究。E-mail:xianrongdu@foxmail.com

中图分类号:

O351

基金项目:

国家自然科学基金项目(52179094);贵州省省级科技计划项目(ZK[2023]一般069);贵州大学自然科学专项(特岗)科研基金项目([2022]14号)


Simulation of cavitation bubble dynamics near defective wall surface based on OpenFOAM
Author:
Affiliation:

(1.College of Electrical Engineering, Guizhou University, Guiyang 550025, China;2.College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China;3.Beijing Key Laboratory of Process Fluid Filtration and Separation, China University of Petroleum-Beijing, Beijing 102249, China)

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    摘要:

    基于OpenFOAM平台,采用汽液两相可压缩空化泡动力学模型对缺陷壁面附近空化泡的动力学行为进行了深入研究。结果表明:缺陷深度及缺陷形状显著影响了空化泡的动力学特性;相比于矩形缺陷,楔形缺陷更容易导致空化泡溃灭时能量集中,从而形成更为强烈的溃灭,造成更大的壁面压力峰值;随着缺陷深度的增加,空化泡第一次溃灭所造成的壁面压力峰值出现先减小后几乎不变的情况,空化泡第二次溃灭所造成的压力峰值一直在减小。

    Abstract:

    Based on OpenFOAM, the dynamic behavior of the cavitation bubble near the defective wall surface was investigated using a compressible cavitation bubble dynamics model for two-phase flow. The results demonstrate that the depth and shape of defects significantly affect the dynamics of the cavitation bubble. Compared with rectangular defects, wedge-shaped defects are more likely to concentrate energy when the cavitation bubble collapses, which results in more intense collapse and higher peak wall pressure. With the increase in defect depth, the peak wall pressure caused by the first collapse of the cavitation bubble initially decreases and then remains almost unchanged, while the pressure peak caused by the second collapse of the cavitation bubble continues to decrease.

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杜先荣,尹建勇,张永学,等.基于OpenFOAM的缺陷壁面附近空化泡动力学过程模拟[J].水利水电科技进展,2025,45(1):39-46.(DU Xianrong, YIN Jianyong, ZHANG Yongxue, et al. Simulation of cavitation bubble dynamics near defective wall surface based on OpenFOAM[J]. Advances in Science and Technology of Water Resources,2025,45(1):39-46.(in Chinese))

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历史
  • 收稿日期:2023-12-08
  • 在线发布日期: 2025-01-24