{"title":"Discharge Coefficients for Radial-Gated Ogee Spillways by Laboratory Data and by Design of Small Dams","authors":"T. Haktanir, Mohammed A. Khalaf","doi":"10.18400/tekderg.540640","DOIUrl":null,"url":null,"abstract":"Using the measured data on 15 laboratory models in USA, six models and one prototype in Turkey, the discharge coefficients ( C ’s) of radial-gated ogee spillways for various gate opennings and lake water surface elevations are computed. Comparison of these C ’s for 22 spillways with the ones given by Figure 9-31 of Design of Small Dams does not show close agreements. It is determined that C depends on both the angle Ɵ and the ratio d/H 1 , rather than Ɵ only where d and H 1 are the gate opening and the upstream head, and statistically significant regression equations are computed individually for each dam.","PeriodicalId":49442,"journal":{"name":"Teknik Dergi","volume":" ","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Teknik Dergi","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.18400/tekderg.540640","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
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Abstract
Using the measured data on 15 laboratory models in USA, six models and one prototype in Turkey, the discharge coefficients ( C ’s) of radial-gated ogee spillways for various gate opennings and lake water surface elevations are computed. Comparison of these C ’s for 22 spillways with the ones given by Figure 9-31 of Design of Small Dams does not show close agreements. It is determined that C depends on both the angle Ɵ and the ratio d/H 1 , rather than Ɵ only where d and H 1 are the gate opening and the upstream head, and statistically significant regression equations are computed individually for each dam.
期刊介绍：
The scope of Teknik Dergi is naturally confined with the subjects falling in the area of civil engineering. However, the area of civil engineering has recently been significantly enlarged, even the definition of civil engineering has somewhat changed.
Half a century ago, engineering was simply defined as “the art of using and converting the natural resources for the benefit of the mankind”. Today, the same objective is expected to be realised (i) by complying with the desire and expectations of the people concerned and (ii) without wasting the resources and within the sustainability principles. This change has required an interaction between engineering and social and administrative sciences. Some subjects at the borderline between civil engineering and social and administrative sciences have consequently been included in the area of civil engineering.
Teknik Dergi defines its scope in line with this understanding. However, it requires the papers falling in the borderline to have a significant component of civil engineering.
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