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 |
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Keywords
- Curved Duct Flow
- Dean Number
- Linear Stability
- Rectangular Cross-Section
- Secondary Flow
ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Pattern variation of the secondary flow in rectangular curved ducts. / Yamamoto, Kyoji; Kadowaki, Ken; Yanase, Shinichiro; Kaga, Yoshito.
In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 70, No. 699, 11.2004, p. 2822-2829.Research output: Contribution to journal › Article
}
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 -