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The Hydraulic Analysis of Side‐Channel Spillways as Reservoir Outlets
Author(s) -
Etheridge M. J.
Publication year - 1996
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1996.tb00042.x
Subject(s) - weir , spillway , hydraulics , discharge coefficient , channel (broadcasting) , hydrology (agriculture) , flow (mathematics) , water discharge , environmental science , open channel flow , geotechnical engineering , geology , engineering , mechanics , geography , mechanical engineering , physics , cartography , electrical engineering , aerospace engineering , nozzle
This paper presents a simple computer‐based methodology for analyzing the hydraulics of side‐channel spillways, and concentrates on the performance of the spillway when the overflow weir is subject to heavy submergence ‐ as may be the case when passing extreme floods as stipulated by the Reservoirs Act 1975. Published data, which define the relationship between the degree of submergence of a weir and the reduction in the weir's coefficient of discharge, is used to match the water profile in the receiving channel with that of the induced distribution of flow over the weir. Results are compared with those obtained from scale physical models.