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http://dx.doi.org/10.4283/JKMS.2013.23.1.026

Thermal-flow Characteristics of Magnetic Fluid for Concentric Annuli Under Fixing Magnetic Field Using Visualization Technique  

Kim, Hyung-Jin (Graduate School of Mechanical Engineering, Dong-A University)
Seo, Jae-Hyeong (Graduate School of Mechanical Engineering, Dong-A University)
Kim, Dae-Wan (Graduate School of Mechanical Engineering, Dong-A University)
Lee, Moo-Yeon (Department of Mechanical Engineering, Dong-A University)
Seo, Lee-Soo (Department of Mechanical Engineering, Dong-A University)
Abstract
This article is experimentally to investigate thermal-flow characteristics of the magnetic fluid for concentric annuli under externally fixed magnetic fields using visualization technique. Temperatures of the inner tube and outer tube in the tested concentric annuli were constantly maintained at both $30^{\circ}C$ and $25^{\circ}C$ and the middle tube was filled with the magnetic fluid. Magnetic field was uniformly applied using 4 permanent magnets at 4 directions of the concentric annuli. As a result, the thermal-flow characteristics of the magnetic fluid for concentric annuli could be controlled by directions of the external magnetic fields.
Keywords
fixed magnetic field; visualization technique; concentric annuli; thermal-flow; magnetic fluid;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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