Coefficient of Discharge for Free Flow Sluice Gates

This paper aims to investigate the effect of sill shape located under the sluice gate on the coefficient of discharge for free gate flow conditions. Both sill shape and sill height are studied. Shapes tested include both polygonal and non polygonal sills. Of the shapes tested, circular sill is the m...

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Main Author: Abdualaziz A. Alhamid
Format: Article
Language:English
Published: Elsevier 1999-01-01
Series:Journal of King Saud University: Engineering Sciences
Online Access:http://www.sciencedirect.com/science/article/pii/S1018363918309899
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author Abdualaziz A. Alhamid
author_facet Abdualaziz A. Alhamid
author_sort Abdualaziz A. Alhamid
collection DOAJ
description This paper aims to investigate the effect of sill shape located under the sluice gate on the coefficient of discharge for free gate flow conditions. Both sill shape and sill height are studied. Shapes tested include both polygonal and non polygonal sills. Of the shapes tested, circular sill is the most effective shape, and triangular sill is the best among the polygonal sills. Besides the shape, sill height plays an important role on the coefficient of discharge. Using dimensional analysis and non linear regression analysis, an equation is developed to predict the coefficient of discharge for both silled and non silled free gate flows. The equation includes flow parameters, gate opening, sill height, and sill shape factors. The equation developed agrees well with the experimental results as well as published data of other investigators.
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spelling doaj.art-7ed3c310eb9349c8bb70140801d52f892022-12-22T01:30:06ZengElsevierJournal of King Saud University: Engineering Sciences1018-36391999-01-011113347Coefficient of Discharge for Free Flow Sluice GatesAbdualaziz A. Alhamid0Civil Eng. Department, College of Engineering, King Saud University, P.O Box 800, Riyadh 11421, Saudi ArabiaThis paper aims to investigate the effect of sill shape located under the sluice gate on the coefficient of discharge for free gate flow conditions. Both sill shape and sill height are studied. Shapes tested include both polygonal and non polygonal sills. Of the shapes tested, circular sill is the most effective shape, and triangular sill is the best among the polygonal sills. Besides the shape, sill height plays an important role on the coefficient of discharge. Using dimensional analysis and non linear regression analysis, an equation is developed to predict the coefficient of discharge for both silled and non silled free gate flows. The equation includes flow parameters, gate opening, sill height, and sill shape factors. The equation developed agrees well with the experimental results as well as published data of other investigators.http://www.sciencedirect.com/science/article/pii/S1018363918309899
spellingShingle Abdualaziz A. Alhamid
Coefficient of Discharge for Free Flow Sluice Gates
Journal of King Saud University: Engineering Sciences
title Coefficient of Discharge for Free Flow Sluice Gates
title_full Coefficient of Discharge for Free Flow Sluice Gates
title_fullStr Coefficient of Discharge for Free Flow Sluice Gates
title_full_unstemmed Coefficient of Discharge for Free Flow Sluice Gates
title_short Coefficient of Discharge for Free Flow Sluice Gates
title_sort coefficient of discharge for free flow sluice gates
url http://www.sciencedirect.com/science/article/pii/S1018363918309899
work_keys_str_mv AT abdualazizaalhamid coefficientofdischargeforfreeflowsluicegates