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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 8- SPECIAL SESSIONS : FREE-SURFACE AND SEEPAGE BUBBLY FLOWS ON A GABION STEPPED SPILLWAY WEIR: EXPERIMENTAL OBSERVATIONS
FREE-SURFACE AND SEEPAGE BUBBLY FLOWS ON A GABION STEPPED SPILLWAY WEIR: EXPERIMENTAL OBSERVATIONS
Author : GANGFU ZHANG , & HUBERT CHANSON
Gabion stepped spillways are presented as a viable option for low to medium head designs. The material contributes to stability, low cost, flexibility, porosity and noise reduction. The steps also enhance energy dissipation, and reduce the requirement of a stilling basin. This paper constitutes a systematic study of the free-surface and seepage bubbly flows using a combination of phase-detection probe and high-speed video camera. The two-phase flow properties and turbulence characteristics in the free-surface flow were documented. The bubbly motion through the gabion material was analysed. The results demonstrated evidence of strong air-water mixing between the free-surface and seepage flows, and highlighted a modified cavity flow pattern as a result.
File Size : 992,604 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 8- SPECIAL SESSIONS
Date Published : 20/04/2016
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