FAYOUM WEIRS PDF

Fayoum standard weirs have been modified by adding number of bottom openings to convey much water to downstream direction. This study aims to investigate the effects of using different configurations of Fayoum weirs with rectangular bottom openings on flow characteristics under different dimensions and number of openings. Each of groups A, B and C has 15 configurations, while group D has one configuration. Configurations of each group differ in the number, arrangement, width and height of bottom openings.

Author:Kazralrajas Dogami
Country:Saudi Arabia
Language:English (Spanish)
Genre:Technology
Published (Last):25 September 2005
Pages:224
PDF File Size:9.5 Mb
ePub File Size:12.40 Mb
ISBN:464-5-74003-520-6
Downloads:18517
Price:Free* [*Free Regsitration Required]
Uploader:Kajigar



Fayoum standard weirs have been modified by adding number of bottom openings to convey much water to downstream direction. This study aims to investigate the effects of using different configurations of Fayoum weirs with rectangular bottom openings on flow characteristics under different dimensions and number of openings. Each of groups A, B and C has 15 configurations, while group D has one configuration. Configurations of each group differ in the number, arrangement, width and height of bottom openings.

In this study, the applied discharges were varied between Two hundred and thirty one test runs were carried out to investigate the effects of using bottom opening on hydraulic characteristics of flow passing through and over Fayoum weir with bottom openings. A comparison between the weir with and without bottom openings was carried out as to discharge conveyance and discharge coefficients.

The general equation for rectangular weir and the dimensional analysis Buckingham Pi-Theorem method were used to estimate the discharge passing through and over the weir. The results showed that for same head of water over the crest of weir, the applied unit discharge increases by increasing the width, height and number of bottom openings. The results also showed that there is a clear convergence between the discharge coefficient values for both analysis methods. On the Fayoum Weir with Orifices.

J Eng Appl Sci. J Hydraul Res. Damascus Univ. Journal of Engineering Sciences, Assiut University. El-Belasy Ahmed M. Journal of Babylon University: Engineering Sciences. Fundamentals of Fluid Mechanics. New York: John Wiley and Sons; ISBN: Journal of Water Resource Engineering and Management.

Open Journal Systems. Journal Help. Subscription Login to verify subscription. User Username Password Remember me.

Notifications View Subscribe. Font Size. Abstract Fayoum standard weirs have been modified by adding number of bottom openings to convey much water to downstream direction.

Full Text: PDF. References FAO. Small Hydraulic Structures. Irrigation and Drainage Paper, Second Printing. Remember me.

JIM KNIPPENBERG PDF

Unknown error

Abstract Weirs may be used to control the discharge, decrease the water slope in canals and to distribute water between canals for irrigation, etc. The objective of this research was to investigate the influence of using one opening or more in weirs on discharge coefficient Cd , the hydraulic jump characteristics and velocity distribution downstream of these structures. This study is based on an experimental program. Three cases of openings arrangements were included, one, two and three openings. Different diameters of openings D and different heights from the bed Z were tested. Moreover, Comparing weirs with different openings numbers but have the same openings area leads to that, weirs with one opening have a bigger Cd than weirs with two or three openings but the maximum velocity near the bed of the weir with three openings is less than that with one opening.

DO MORE GREAT WORK BY MICHAEL BUNGAY STANIER PDF

Influence of Using Floor Jets on the Local Scour Downstream Fayoum Type Weir

The Infona portal uses cookies, i. The portal can access those files and use them to remember the user's data, such as their chosen settings screen view, interface language, etc. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.

Related Articles