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 |
|---|---|
| Pages (from-to) | 920-927 |
| Number of pages | 8 |
| Journal | Energy Procedia |
| Volume | 12 |
| DOIs | |
| Publication status | Published - Jan 1 2011 |
| Event | 1st International Conference on Smart Grid and Clean Energy Technologies, ICSGCE 2011 - Chengdu, China Duration: Sep 27 2011 → Sep 30 2011 |
Keywords
- Curved duct
- Screw pump
- Secondary flow
ASJC Scopus subject areas
- Energy(all)
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Wu, X., Lai, S., Yamamoto, K., & Yanase, S. (2011). Vortex patterns of the flow in a curved duct. Energy Procedia, 12, 920-927. https://doi.org/10.1016/j.egypro.2011.10.121