Interfacial Phenomena of Magnetic Fluid with Permanent Magnet in a Longitudinally Excited Container
- Department of Machine Intelligence and Systems Engineering, Akita Prefectural University, Yurihonjyo 015-0055 (Japan)
This paper describes the magnetic fluid sloshing in a longitudinally excited container. Liquid responses of magnetic fluid with a permanent magnet in a circular cylindrical container subject to vertical vibration are investigated. Experiments are performed on a vibration- testing system which provided longitudinal excitation. A cylindrical container made with the acrylic plastic is used in the experiment. A permanent magnet is in the state of floating in a magnetic fluid. The disk-shaped and ring-shaped magnets are examined. The different interfacial phenomena from the usual longitudinal liquid sloshing are observed. It is found that the wave motion frequency of magnetic fluid with a disk-shaped magnet in the container subject to vertical vibration is exactly same that of the excitation. In the case of ring-shaped magnet, the first symmetrical mode of one-half subharmonic response is dominant at lower excitation frequencies. The magnetic fluid disintegration of the free surface was also observed by a high-speed video camera system.
- OSTI ID:
- 21055400
- Journal Information:
- AIP Conference Proceedings, Vol. 982, Issue 1; Conference: 5. international workshop on complex systems, Sendai (Japan), 25-28 Sep 2007; Other Information: DOI: 10.1063/1.2897865; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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