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Energy dissipation and geometry effects over stepped spillways

Jahad, Udai A., Al-Ameri, Riyadh and Das, Subrat 2016, Energy dissipation and geometry effects over stepped spillways, International journal of civil engineering and technology, vol. 7, no. 4, Article number : IJCIET_07_04_015, pp. 188-198.

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Title Energy dissipation and geometry effects over stepped spillways
Author(s) Jahad, Udai A.
Al-Ameri, RiyadhORCID iD for Al-Ameri, Riyadh orcid.org/0000-0003-1881-1787
Das, Subrat
Journal name International journal of civil engineering and technology
Volume number 7
Issue number 4
Season Article number : IJCIET_07_04_015
Start page 188
End page 198
Total pages 11
Publisher IAEME
Place of publication Tamilnadu, India
Publication date 2016-08
ISSN 0976-6308
0976-6316
Keyword(s) energy dissipation
discharge
weir
stepped
step height
step number
Summary The energy dissipation process is the major significant point in the designof hydraulic structure. The dissipation of high energy on stepped weirsprevents any damage in the weir itself and channels the energy ownstream to reduce the stilling basin size. In this study, four physical models are used to evaluate the impact of adding end sills that have a quarter circle shape at step edges. The amount of energy loss on weirs under different flow regimes is investigated by experimental work. Stepped weirs have a suitable number of steps and two different ratios of the width to height (2.22, and 2.40). The scale of the physical models is 20:1. The outcomes of the dimensional analyses refer to the critical depth for flow in weirs to the height of step yc/h, the end sill radius, and the number of steps N are more effective parameters than others inthe energy loss process. Moreover, for small values of yc/h, the energydissipation is the greatest. Any increase in yc/h leads to a decrease in theenergy dissipation, while the energy dissipation increases with the number of steps (N).
Language eng
Field of Research 090506 Structural Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, IAEME Publication
Free to Read? Yes
Use Rights Creative Commons Attribution non-commercial licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30085583

Document type: Journal Article
Collections: School of Engineering
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.