A unified model of drag force for bubble-propelled catalytic micro/nano-motors with different geometries in low Reynolds number flows

被引：48
作者：
Li, Longqiu [1 ,2 ]
Wang, Jiyuan [1 ,2 ]
Li, Tianlong [1 ]
Song, Wenping [1 ]
Zhang, Guangyu [1 ]
机构：
[1] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China
[2] Heilongjiang Univ Sci & Technol, Coll Elect & Control Engn, Harbin 150022, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 10期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
MICROJET ENGINES; ASSISTED FABRICATION; PROPULSION MECHANISM; TUBULAR MICROENGINES; JANUS MICROMOTORS; HYDROGEN-PEROXIDE; RELEASE; MOTION;
D O I：
10.1063/1.4915114
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Motion of catalytic micro/nano-motors with various geometries is mainly determined by the drag force and the propulsion force acting on the motors as they move in low Reynolds number flows. A unified solution of drag force along with drag coefficient for all circular cross-sectional types of micro/nano-motors is derived. The effect of the geometric parameters of a micro/nano-motor, such as the semi-cone angle theta, the ratio xi of length to larger radius, on the drag coefficient is identified. Results provided in this work are useful for optimizing the design and fabrication of catalytic micro/nano-motors, which can be potentially used in biomedical and environmental engineering. (C) 2015 AIP Publishing LLC.
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页数：6
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