Affiliation:
1. National Laboratory for Civil Engineering Lisbon, Portugal
Abstract
Abstract
Connecting storm-sewers located at rather different elevations may be made with vortex drop shafts in which the energy dissipation is made by the friction between the vertical shaft and the flow and downstream by the impinging jet in a dissipation chamber. Following the first model design in the 1940s, different types of vortex drop shafts have been developed. One of the most used type is the so-called spiral vortex drop shaft developed to work in supercritical flow with good performance in both energy dissipation and space constrains. In this paper, an experimental flow characterization in a spiral vortex drop shaft is conducted covering the three main components of these structures, namely the inlet channel, the vertical shaft and the dissipation chamber. The results include measurement of water depths, pressure and velocity.
Funder
Fundação para a Ciência e a Tecnologia
Subject
Water Science and Technology,Environmental Engineering
Reference15 articles.
1. Vortex drop shaft retrofitting: Case of Naples city (Italy);Journal of Hydraulic Research,2011
2. Design of a scroll vortex inlet for supercritical approach flow;Journal of Hydraulic Engineering,2010
3. Su un particolare tipo d'imbocco per pozzi di scarico;L’Energia Elettrica,1947
4. High head drop shaft structure for small and large discharges,2008
5. Head-discharge relation for vortex shaft;Journal of Hydraulic Engineering,1985
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献