The dynamic behaviour of magnetic levitating magnet-magnetic fluid element in alternating magnetic field

Issue title: Selected Papers from the 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2011)

Article type: Research Article

Authors: Sudo, Seiichi^{a; *} | Goto, Takumi^a | Shinozaki, Michihiro^a | Kainuma, Toshiya^a | Takana, Hidemasa^b | Nishiyama, Hideya^b

Affiliations: [a] Faculty of Systems Science and Technology, Akita Prefectural University, Yurihonjyo, Japan | [b] Institute of Fluid Science, Tohoku University, Sendai, Japan

Correspondence: [*] Corresponding author: Seiichi Sudo, Faculty of Systems Science and Technology, Akita Prefectural University, Ebinokuchi 84-4, Yurihonjyo 015--0055, Japan. Tel.: +81 184 27 2111; Fax: +81 184 27 2188; E-mail: [email protected]

Abstract: Experimental study on the dynamic behaviour of magnetic levitating magnet-magnetic fluid element in the external alternating magnetic field is described. Two types of element motions occur according to the magnetic field strength and frequency of the external alternating magnetic field. Seesaw motions of the element and harmonic motions of magnetic fluid surface are observed using high-speed video camera system. Transient phenomena in element response and the change of spikes pattern on the magnetic fluid surface are revealed.

Keywords: Magnetic fluids, ferrobydrodynamics, interfacial phenomena, alternating magnetic field

DOI: 10.3233/JAE-2012-1516

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 39, no. 1-4, pp. 595-601, 2012