### Abstract

The flow through a rectangular curved duct is investigated numerically with emphasis on the secondary flow patterns. The non-dimensional curvature of the duct is taken to be 0.02 and the aspect ratios of the duct cross-section are considered to be 0.5, 2, 3 and 4. The calculation covers a wide range of the Dean number. The steady solutions are first calculated and then the linear stability of the solutions is examined. The multiple solutions and the bifurcation of the solutions are obtained. The critical Dean numbers at which the transition of the secondary flow patterns occurs are also obtained.

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

Pages (from-to) | 2822-2829 |

Number of pages | 8 |

Journal | Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |

Volume | 70 |

Issue number | 699 |

Publication status | Published - Nov 2004 |

Externally published | Yes |

### Fingerprint

### Keywords

- Curved Duct Flow
- Dean Number
- Linear Stability
- Rectangular Cross-Section
- Secondary Flow

### ASJC Scopus subject areas

- Mechanical Engineering

### Cite this

*Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B*,

*70*(699), 2822-2829.

**Pattern variation of the secondary flow in rectangular curved ducts.** / Yamamoto, Kyoji; Kadowaki, Ken; Yanase, Shinichiro; Kaga, Yoshito.

Research output: Contribution to journal › Article

*Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B*, vol. 70, no. 699, pp. 2822-2829.

}

TY - JOUR

T1 - Pattern variation of the secondary flow in rectangular curved ducts

AU - Yamamoto, Kyoji

AU - Kadowaki, Ken

AU - Yanase, Shinichiro

AU - Kaga, Yoshito

PY - 2004/11

Y1 - 2004/11

N2 - The flow through a rectangular curved duct is investigated numerically with emphasis on the secondary flow patterns. The non-dimensional curvature of the duct is taken to be 0.02 and the aspect ratios of the duct cross-section are considered to be 0.5, 2, 3 and 4. The calculation covers a wide range of the Dean number. The steady solutions are first calculated and then the linear stability of the solutions is examined. The multiple solutions and the bifurcation of the solutions are obtained. The critical Dean numbers at which the transition of the secondary flow patterns occurs are also obtained.

AB - The flow through a rectangular curved duct is investigated numerically with emphasis on the secondary flow patterns. The non-dimensional curvature of the duct is taken to be 0.02 and the aspect ratios of the duct cross-section are considered to be 0.5, 2, 3 and 4. The calculation covers a wide range of the Dean number. The steady solutions are first calculated and then the linear stability of the solutions is examined. The multiple solutions and the bifurcation of the solutions are obtained. The critical Dean numbers at which the transition of the secondary flow patterns occurs are also obtained.

KW - Curved Duct Flow

KW - Dean Number

KW - Linear Stability

KW - Rectangular Cross-Section

KW - Secondary Flow

UR - http://www.scopus.com/inward/record.url?scp=12744268073&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=12744268073&partnerID=8YFLogxK

M3 - Article

VL - 70

SP - 2822

EP - 2829

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 - 699

ER -