Interfacial Phenomena of Magnetic Fluid with Permanent Magnet in a Longitudinally Excited Container

Journal Article · Thu Feb 21 04:00:00 EST 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2897865· OSTI ID:21055400

Sudo, Seiichi; Wakuda, Hirofumi; Yano, Tetsuya ^[1]

---

1. 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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 982; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLOIDS
CONTAINERS
CYLINDRICAL CONFIGURATION
EXCITATION
LIQUIDS
PERMANENT MAGNETS
PLASTICS
SURFACES
TELEVISION CAMERAS
TESTING
VELOCITY
WAVE PROPAGATION