The thermal capillary migration properties and controlling technique of ferrofluids-Reference-Cited by-同舟云学术

The thermal capillary migration properties and controlling technique of ferrofluids

Published:2017-03-10 Issue:11 Volume:231 Page:1441-1449
ISSN:1350-6501
Container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Author:

Dai Qingwen¹,Huang Wei¹,Wang Jingqiu¹,Wang Xiaolei¹²

Affiliation:

1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, China

2. Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing, China

Abstract

The thermal capillary migration describes a phenomenon where the thermal gradients on the surface drive a liquid to flow from warm to cold regions in the absence of external forces. In industry, it is of great importance to prevent the migration since it would lead to lubricant starvation on the moving components. In this paper, ferrofluids are employed to control the migration. The influence of external magnetic field on the migration of ferrofluids is studied. The effects of volume and saturation magnetization of ferrofluids are also investigated. Experimental results demonstrate that the external magnetic field intensities have a significant obstruction effect on the migration behavior. An effective method using electromagnet to control the migration and re-concentrate the migrated lubricant is proposed.

Publisher

SAGE Publications

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/1350650117698630

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