气泡驱动微马达形状与气泡位置影响其运动特性的数值模拟

doi:10.11896/cldb.25020188

材料导报

2026, Vol. 40

Issue (7): 25020188-7 https://doi.org/10.11896/cldb.25020188

无机非金属及其复合材料

气泡驱动微马达形状与气泡位置影响其运动特性的数值模拟

陈刚^1,*, 张冰洋¹, 王智彬², 刘云龙¹, 张芳芳¹

1 郑州轻工业大学能源与动力工程学院,郑州 450000
2 广东工业大学材料与能源学院,广州 510006

Numerical Simulation Study on the Influence of Bubble-driven Micromotor Shape and Bubble Generation Position on Its Motion Behavior

CHEN Gang^1,*, ZHANG Bingyang¹, WANG Zhibin², LIU Yunlong¹, ZHANG Fangfang¹

1 School of Energy and Power Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
2 School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China

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摘要本工作采用数值模拟方法系统研究了气泡驱动微马达的运动机制,重点揭示了微马达几何形状和气泡产生位置对其运动特性的耦合作用机制。研究发现,气泡动力学特征对微马达位移的贡献具有显著的非对称性,其中气泡溃灭阶段产生的位移贡献显著高于气泡生长阶段。微马达形状与气泡产生位置存在协同效应:当气泡产生于微马达凸面时,不同形状的马达位移相近;而当气泡产生于凹面时,月牙形马达位移最小,球形马达位移最大。通过参数优化发现,减小微马达尺寸、增大气泡最大尺寸或提高气泡溃灭速度均可显著提升马达位移,最高可达初始值的10倍。本研究阐明了“几何结构-气泡动力学-运动性能”的内在关联,为面向特定应用场景的微马达优化设计提供了理论依据。

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关键词: 微马达形状气泡产生位置运动行为

Abstract: This study utilizes numerical simulations to methodically examine the motion mechanism of bubble-driven micromotors, with a particular emphasis on the coupled influence of micromotor geometry and the position of bubble generation on propulsion characteristics. The results indicate a pronounced asymmetry in the contribution of bubble dynamics to micromotor displacement, where the collapse phase generates significantly greater propulsion than the growth phase. A synergistic effect is observed between micromotor shape and bubble generation location: when bubbles form on convex surfaces, the motion displacements of micromotors with different geometries exhibit similarities. However, when generated on concave surfaces, crescent-shaped micromotors exhibit minimal displacement, while spherical micromotors achieve the highest displacement. A parametric optimization analysis reveals that reducing the micromotor size, increasing the maximum bubble diameter, or accelerating the bubble collapse rate can enhance displacement by up to tenfold. This work elucidates the intrinsic relationship among geometric structure, bubble dynamics, and motion performance, providing a theoretical foundation for the optimized design of micromotors tailored to specific applications.

Key words: micromotor shape bubble generation position motion behavior

发布日期: 2026-04-16

ZTFLH:

TH138.51

基金资助: 国家自然科学基金青年基金(52106212)

通讯作者: *陈刚,博士,副教授,主要从事微纳马达的驱动机理及其应用研究。gchen@zzuli.edu.cn

引用本文:

陈刚, 张冰洋, 王智彬, 刘云龙, 张芳芳. 气泡驱动微马达形状与气泡位置影响其运动特性的数值模拟[J]. 材料导报, 2026, 40(7): 25020188-7.
CHEN Gang, ZHANG Bingyang, WANG Zhibin, LIU Yunlong, ZHANG Fangfang. Numerical Simulation Study on the Influence of Bubble-driven Micromotor Shape and Bubble Generation Position on Its Motion Behavior. Materials Reports, 2026, 40(7): 25020188-7.

链接本文:

https://www.mater-rep.com/CN/10.11896/cldb.25020188 或 https://www.mater-rep.com/CN/Y2026/V40/I7/25020188

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