Abstract
The vortex patterns of the secondary flow in a curved duct of square cross-section are numerically investigated. The flow is driven by the axial pressure gradient as well as the walls rotation of the duct except the outer wall around the center of curvature. When the rotation is in the same direction as the negative pressure gradient, the secondary flow shows complicated multiple patterns, which consists of two-vortex, four-vortex, eight-vortex or even non-symmetric secondary flow pattern. An analysis of linear stability on the flow is also carried out to distinguish possible flow patterns among multiple steady solutions.
| Original language | English |
|---|---|
| Title of host publication | Energy Procedia |
| Pages | 920-927 |
| Number of pages | 8 |
| Volume | 12 |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 1st International Conference on Smart Grid and Clean Energy Technologies, ICSGCE 2011 - Chengdu, China Duration: Sep 27 2011 → Sep 30 2011 |
Other
| Other | 1st International Conference on Smart Grid and Clean Energy Technologies, ICSGCE 2011 |
|---|---|
| Country | China |
| City | Chengdu |
| Period | 9/27/11 → 9/30/11 |
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Keywords
- Curved duct
- Screw pump
- Secondary flow
ASJC Scopus subject areas
- Energy(all)
Cite this
Vortex patterns of the flow in a curved duct. / Wu, Xiaoyun; Lai, Sangding; Yamamoto, Kyoji; Yanase, Shinichiro.
Energy Procedia. Vol. 12 2011. p. 920-927.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Vortex patterns of the flow in a curved duct
AU - Wu, Xiaoyun
AU - Lai, Sangding
AU - Yamamoto, Kyoji
AU - Yanase, Shinichiro
PY - 2011
Y1 - 2011
N2 - The vortex patterns of the secondary flow in a curved duct of square cross-section are numerically investigated. The flow is driven by the axial pressure gradient as well as the walls rotation of the duct except the outer wall around the center of curvature. When the rotation is in the same direction as the negative pressure gradient, the secondary flow shows complicated multiple patterns, which consists of two-vortex, four-vortex, eight-vortex or even non-symmetric secondary flow pattern. An analysis of linear stability on the flow is also carried out to distinguish possible flow patterns among multiple steady solutions.
AB - The vortex patterns of the secondary flow in a curved duct of square cross-section are numerically investigated. The flow is driven by the axial pressure gradient as well as the walls rotation of the duct except the outer wall around the center of curvature. When the rotation is in the same direction as the negative pressure gradient, the secondary flow shows complicated multiple patterns, which consists of two-vortex, four-vortex, eight-vortex or even non-symmetric secondary flow pattern. An analysis of linear stability on the flow is also carried out to distinguish possible flow patterns among multiple steady solutions.
KW - Curved duct
KW - Screw pump
KW - Secondary flow
UR - http://www.scopus.com/inward/record.url?scp=84555170249&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84555170249&partnerID=8YFLogxK
U2 - 10.1016/j.egypro.2011.10.121
DO - 10.1016/j.egypro.2011.10.121
M3 - Conference contribution
VL - 12
SP - 920
EP - 927
BT - Energy Procedia
ER -