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Characteristics of electromagnetic induction by moving ferrofluids

Ching-Yao Chen - Sheng-Yan Wang - Chi-Ming Wu - Chung-Hao Lin - Kuo-An Huang

Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan R. O. C.

We have demonstrated the capabilities to catch the signals of induced electromotive force (EMF). The characteristics of EMF signals are analyzed systematically. Influences of volumes, sizes and travelling velocities of ferrofluids on the magnitudes and wave spans of the signals are presented. In addition, simulations of the induction fields are carried out to provide the physical insights of the induced EMF signals. The signals can be potentially applied as diagnostic characteristics in the measurements of travelling velocities or sizes of moving ferrofluid drops or slugs. Figs 12, Refs 15.

Magnetohydrodynamics 48, No. 3, 567-580, 2012 [PDF, 1.34 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X