Updated regime equations for alluvial Egyptian canals

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• 作者：Fahmy Salah Abdelhaleem^a ; ^{Fahmyhri@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; ^{fahmy.hri@bhit.bu.edu.eg" class="auth_mail" title="E-mail the corresponding author} ; Ahmed Mostafa Amin^b ; ¹ ; ^{a.amin@hri-egypt.org" class="auth_mail" title="E-mail the corresponding author} ; Mohammad Mahmoud Ibraheem^c ; ² ; ^{drmebraheem@yahoo.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Alluvial channels ; Regime theory ; Channel design ; Fluvial hydraulics ; Egypt
• 刊名：Alexandria Engineering Journal
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：55
• 期：1
• 页码：505-512
• 全文大小：777 K

文摘

Real accuracy of several regime relationships for designing stable alluvial channels in Egypt was determined. Extensive field measurements had been carried out on 26 Egyptian stable canals, which cover various categories of irrigation canals starting from distributary, branch to carrier canals in Egypt. Analysis of 1484 velocity profiles for 371 cross sections was employed in order to formulate new regime equations characterizing Egyptian canals. The functional formulations to include the flow depth, cross section area, hydraulic radius and mean velocity were achieved. This research compared the deduced formulas from the measured data with the equations derived by other researchers for stable channel design. It was found that the derived formulas are reliable and could help in the design of Egyptian canals to convey a discharge ranging from 0.11 to 287.5 m³/s (0.0095–24.84 millions m³/day).