A model study of tidal barrage sluices for minimum energy loss

Autor:	R. H. J. Sellin, C. I. Robertson
Rok vydání:	1985
Předmět:	Flow visualization Tidal barrage Sluice Flow (psychology) Vertical plane Diffuser (thermodynamics) symbols.namesake Venturi effect Froude number symbols Environmental science Geotechnical engineering Water Science and Technology Civil and Structural Engineering Marine engineering
Zdroj:	Journal of Hydraulic Research. 23:453-466
ISSN:	1814-2079 0022-1686
DOI:	10.1080/00221688509499338
Popis:	As part of the pre-feasibility study for the Severn Barrage, hydraulic tests were carried out on half models of three sluice passageway designs based on a vertical gated Venturi passage. Froude law scaling relationships were used throughout and the models were tested over a range of water levels corresponding to the expected sea level variation at the preferred barrage site. The sluices were tested under simulated in-service conditions, the flow being in one direction only, i.e. from the open sea. The quantitative results are presented as diffuser efficiency values. Flow visualisation identified regions of flow separation and measurements were also made of the downstream velocity distribution in a vertical plane. The three models tested here represent progressive modification and improvement to the original design and their performance, as represented by diffuser efficiency, was improved from 0.55 to 0.75 and finally to 0.85.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::66373d8da9d449be1e40c8ce94c246d1 https://doi.org/10.1080/00221688509499338 Zobrazit plný text záznamu