Entrance Flows of Magnetic Fluids in a Circular Pipe

Tsuyoshi Mihayashi; Kazuyuki Shizawa; Takahiko Tanahashi; Harukazu Shimizu

doi:10.1299/kikaib.53.2027

Entrance Flows of Magnetic Fluids in a Circular Pipe

Tsuyoshi Mihayashi, Kazuyuki Shizawa, Takahiko Tanahashi, Harukazu Shimizu

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

Abstract

In the present paper, two kinds of entrance flows of magnetic fluids are analized by the finite difference method on the basis of the basic equations for magnetic fluids with internal rotation proposed by the authors. The values of magnetization are obtained not by the relaxation equation but by the constitutive equation of magnetization. Numerical solutions are obtained for parabolic and uniform profiles of axial velocity at the pipe inlet. The effects of some dimensionless parameters characterizing the magnetic fluid flow are discussed in detail. The results of this study seem to contribute to the miniaturization of magnetic fluid transmission lines by means of applied magnetic fields.

Original language	English
Pages (from-to)	2027-2036
Number of pages	10
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	53
Issue number	491
DOIs	https://doi.org/10.1299/kikaib.53.2027
Publication status	Published - 1987 Jan 1
Externally published	Yes

Keywords

Entrance Flow
Finite Difference Method
Internal Rotation
Magnetic Fluid
Order Estimation

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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title = "Entrance Flows of Magnetic Fluids in a Circular Pipe",

abstract = "In the present paper, two kinds of entrance flows of magnetic fluids are analized by the finite difference method on the basis of the basic equations for magnetic fluids with internal rotation proposed by the authors. The values of magnetization are obtained not by the relaxation equation but by the constitutive equation of magnetization. Numerical solutions are obtained for parabolic and uniform profiles of axial velocity at the pipe inlet. The effects of some dimensionless parameters characterizing the magnetic fluid flow are discussed in detail. The results of this study seem to contribute to the miniaturization of magnetic fluid transmission lines by means of applied magnetic fields.",

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author = "Tsuyoshi Mihayashi and Kazuyuki Shizawa and Takahiko Tanahashi and Harukazu Shimizu",

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T1 - Entrance Flows of Magnetic Fluids in a Circular Pipe

AU - Mihayashi, Tsuyoshi

AU - Shizawa, Kazuyuki

AU - Tanahashi, Takahiko

AU - Shimizu, Harukazu

PY - 1987/1/1

Y1 - 1987/1/1

N2 - In the present paper, two kinds of entrance flows of magnetic fluids are analized by the finite difference method on the basis of the basic equations for magnetic fluids with internal rotation proposed by the authors. The values of magnetization are obtained not by the relaxation equation but by the constitutive equation of magnetization. Numerical solutions are obtained for parabolic and uniform profiles of axial velocity at the pipe inlet. The effects of some dimensionless parameters characterizing the magnetic fluid flow are discussed in detail. The results of this study seem to contribute to the miniaturization of magnetic fluid transmission lines by means of applied magnetic fields.

AB - In the present paper, two kinds of entrance flows of magnetic fluids are analized by the finite difference method on the basis of the basic equations for magnetic fluids with internal rotation proposed by the authors. The values of magnetization are obtained not by the relaxation equation but by the constitutive equation of magnetization. Numerical solutions are obtained for parabolic and uniform profiles of axial velocity at the pipe inlet. The effects of some dimensionless parameters characterizing the magnetic fluid flow are discussed in detail. The results of this study seem to contribute to the miniaturization of magnetic fluid transmission lines by means of applied magnetic fields.

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KW - Magnetic Fluid

KW - Order Estimation

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