Oscillation of a magnetically levitated diamagnetic droplet under a vertical magnetic disturbance

Jianqiang Mai; Takuyo Okada; Shuzo Oshima; Ryuichiro Yamane

doi:10.1299/jsmeb.44.14

Oscillation of a magnetically levitated diamagnetic droplet under a vertical magnetic disturbance

Jianqiang Mai, Takuyo Okada, Shuzo Oshima, Ryuichiro Yamane

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

The oscillation of a magnetically levitated liquid droplet in a magnetic fluid is studied theoretically and experimentally. In the theoretical analysis, a small amplitude nonviscous linear theory is adopted. Two models are employed according to the difference in both the magnetic and capillary pressures acting on the interface. Resonance angular frequencies of the levitated liquid droplet are obtained. The responses of the droplet to magnetic field disturbances are discussed. A pair of cylindrical permanent magnetic like poles was set face to face to form a static magnetic field that was used to levitate a diamagnetic liquid or water droplet in a diluted oil-base magnetic fluid, and a pair of electromagnets was used to produce the magnetic disturbances in experiments.

Original language	English
Pages (from-to)	14-23
Number of pages	10
Journal	JSME International Journal - Series B: Fluids and Thermal Engineering
Volume	44
Issue number	1
DOIs	https://doi.org/10.1299/jsmeb.44.14
Publication status	Published - Feb 2001

Keywords

Ferrohydrodynamics
Levitation
Magnetic fluid
Oscillatory flow
Stability

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10.1299/jsmeb.44.14

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abstract = "The oscillation of a magnetically levitated liquid droplet in a magnetic fluid is studied theoretically and experimentally. In the theoretical analysis, a small amplitude nonviscous linear theory is adopted. Two models are employed according to the difference in both the magnetic and capillary pressures acting on the interface. Resonance angular frequencies of the levitated liquid droplet are obtained. The responses of the droplet to magnetic field disturbances are discussed. A pair of cylindrical permanent magnetic like poles was set face to face to form a static magnetic field that was used to levitate a diamagnetic liquid or water droplet in a diluted oil-base magnetic fluid, and a pair of electromagnets was used to produce the magnetic disturbances in experiments.",

keywords = "Ferrohydrodynamics, Levitation, Magnetic fluid, Oscillatory flow, Stability",

author = "Jianqiang Mai and Takuyo Okada and Shuzo Oshima and Ryuichiro Yamane",

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AU - Mai, Jianqiang

AU - Okada, Takuyo

AU - Oshima, Shuzo

AU - Yamane, Ryuichiro

PY - 2001/2

Y1 - 2001/2

N2 - The oscillation of a magnetically levitated liquid droplet in a magnetic fluid is studied theoretically and experimentally. In the theoretical analysis, a small amplitude nonviscous linear theory is adopted. Two models are employed according to the difference in both the magnetic and capillary pressures acting on the interface. Resonance angular frequencies of the levitated liquid droplet are obtained. The responses of the droplet to magnetic field disturbances are discussed. A pair of cylindrical permanent magnetic like poles was set face to face to form a static magnetic field that was used to levitate a diamagnetic liquid or water droplet in a diluted oil-base magnetic fluid, and a pair of electromagnets was used to produce the magnetic disturbances in experiments.

AB - The oscillation of a magnetically levitated liquid droplet in a magnetic fluid is studied theoretically and experimentally. In the theoretical analysis, a small amplitude nonviscous linear theory is adopted. Two models are employed according to the difference in both the magnetic and capillary pressures acting on the interface. Resonance angular frequencies of the levitated liquid droplet are obtained. The responses of the droplet to magnetic field disturbances are discussed. A pair of cylindrical permanent magnetic like poles was set face to face to form a static magnetic field that was used to levitate a diamagnetic liquid or water droplet in a diluted oil-base magnetic fluid, and a pair of electromagnets was used to produce the magnetic disturbances in experiments.

KW - Ferrohydrodynamics

KW - Levitation

KW - Magnetic fluid

KW - Oscillatory flow

KW - Stability

U2 - 10.1299/jsmeb.44.14

DO - 10.1299/jsmeb.44.14

M3 - Article

SN - 1340-8054

VL - 44

SP - 14

EP - 23

JO - JSME International Journal - Series B: Fluids and Thermal Engineering

JF - JSME International Journal - Series B: Fluids and Thermal Engineering

IS - 1

ER -

Oscillation of a magnetically levitated diamagnetic droplet under a vertical magnetic disturbance

Abstract

Keywords

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