### Abstract

The investigation of two-dimensional magnetic fluid flow is necessary and important in order to examine the fundamental characteristics of a magnetic fluid. In the present paper, the flow in a square cavity, filled with a magnetic fluid, to which a magnetic field is applied parallel to the moving wall, is numerically analyzed by the finite element method on the basis of governing equations for magnetic fluids with internal rotation. The effects of a magnetic field and some dimensionless parameters characterizing magnetic fluid flow are discussed in detail. The results obtained here are as follows : (1) The GSMAC method has been developed for magnetic fluid algorithm in a homogeneous magnetic field. (2) The flow remarkably expresses a non-Newtonian property due to the micropolar effect when the magnetic field is not applied. (3) When a moderate magnetic field is applied, the flow of the magnetic fluid is similar to that of a Newtonian fluid.

Original language | English |
---|---|

Pages (from-to) | 2433-2440 |

Number of pages | 8 |

Journal | Transactions of the Japan Society of Mechanical Engineers Series B |

Volume | 53 |

Issue number | 492 |

DOIs | |

Publication status | Published - 1987 |

Externally published | Yes |

### Fingerprint

### Keywords

- Body Fitted Grid
- Circular Cylinder
- Numerical Analysis
- Splitter Plate
- Unsteady Flow
- Wake

### ASJC Scopus subject areas

- Condensed Matter Physics
- Mechanical Engineering

### Cite this

*Transactions of the Japan Society of Mechanical Engineers Series B*,

*53*(492), 2433-2440. https://doi.org/10.1299/kikaib.53.2433

**A numerical study of separated flow on a suitable grid for bluff bodies. The application to the unsteady flow around a circular cylinder.** / Okanaga, Hiroo; Shizawa, Kazuyuki; Yashima, Noboru; Tanahashi, Takahiko.

Research output: Contribution to journal › Article

*Transactions of the Japan Society of Mechanical Engineers Series B*, vol. 53, no. 492, pp. 2433-2440. https://doi.org/10.1299/kikaib.53.2433

}

TY - JOUR

T1 - A numerical study of separated flow on a suitable grid for bluff bodies. The application to the unsteady flow around a circular cylinder

AU - Okanaga, Hiroo

AU - Shizawa, Kazuyuki

AU - Yashima, Noboru

AU - Tanahashi, Takahiko

PY - 1987

Y1 - 1987

N2 - The investigation of two-dimensional magnetic fluid flow is necessary and important in order to examine the fundamental characteristics of a magnetic fluid. In the present paper, the flow in a square cavity, filled with a magnetic fluid, to which a magnetic field is applied parallel to the moving wall, is numerically analyzed by the finite element method on the basis of governing equations for magnetic fluids with internal rotation. The effects of a magnetic field and some dimensionless parameters characterizing magnetic fluid flow are discussed in detail. The results obtained here are as follows : (1) The GSMAC method has been developed for magnetic fluid algorithm in a homogeneous magnetic field. (2) The flow remarkably expresses a non-Newtonian property due to the micropolar effect when the magnetic field is not applied. (3) When a moderate magnetic field is applied, the flow of the magnetic fluid is similar to that of a Newtonian fluid.

AB - The investigation of two-dimensional magnetic fluid flow is necessary and important in order to examine the fundamental characteristics of a magnetic fluid. In the present paper, the flow in a square cavity, filled with a magnetic fluid, to which a magnetic field is applied parallel to the moving wall, is numerically analyzed by the finite element method on the basis of governing equations for magnetic fluids with internal rotation. The effects of a magnetic field and some dimensionless parameters characterizing magnetic fluid flow are discussed in detail. The results obtained here are as follows : (1) The GSMAC method has been developed for magnetic fluid algorithm in a homogeneous magnetic field. (2) The flow remarkably expresses a non-Newtonian property due to the micropolar effect when the magnetic field is not applied. (3) When a moderate magnetic field is applied, the flow of the magnetic fluid is similar to that of a Newtonian fluid.

KW - Body Fitted Grid

KW - Circular Cylinder

KW - Numerical Analysis

KW - Splitter Plate

KW - Unsteady Flow

KW - Wake

UR - http://www.scopus.com/inward/record.url?scp=0023397986&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023397986&partnerID=8YFLogxK

U2 - 10.1299/kikaib.53.2433

DO - 10.1299/kikaib.53.2433

M3 - Article

VL - 53

SP - 2433

EP - 2440

JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

SN - 0387-5016

IS - 492

ER -