首页|Morphological analysis for thermodynamics of cavitation collapse near fractal solid wall

Morphological analysis for thermodynamics of cavitation collapse near fractal solid wall

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A fractal geometric boundary with natural wall features is introduced into a hybrid lattice-Boltzmann-method(LBM)multiphase model.The physical model of cavitation bubble collapse near the irregular geometric wall is established to study the thermodynamic characteristics of the bubble collapse.Due to the lack of periodicity,symmetry,spatial uniformity and obvious correlation in the LBM simulation of the bubble collapse near the fractal wall,the morphological analysis based on Minkowski functional is introduced into the thermodynamic investigation of cavitation bubble so as to analyze and obtain the effective information.The results show that the Minkowski functional method can employed to study the temperature information in complex physical fields hierarchically and quantitatively.The high/low temperature region of the cavitation flow is explored,and thermal effect between irregular and fractal geometric wall and cavitation bubble can be revealed.It illustrates that LBM and morphological analysis complement each other,and morphological analysis can also be used as an optional and potential tool in research field of complex multiphase flows.

lattice Boltzmann methodcavitation bubblemorphological analysis

单鸣雷、杨雨、阚雪芬、殷澄、韩庆邦

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Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology,Hohai University,Changzhou 213022,China

College of Information Science and Technology,Nanjing Forestry University,Nanjing 210000,China

Department of Transportation Engineering,Jiangsu Shipping College,Nantong 226000,China

国家自然科学基金国家自然科学基金Basic Science(Natural Science)Research Project for the Universities of Jiangsu ProvinceNatural Science Foundation of Nantong

118741401217408523KJD140002JC2023081

2024

10.1088/1674-1056/ad3343

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(6)
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