Experimental study of one- and two-cycle trapezoidal piano-key side weirs in a curved channel-Reference-Cited by-同舟云学术

Experimental study of one- and two-cycle trapezoidal piano-key side weirs in a curved channel

Published:2019-02-06 Issue:6 Volume:19 Page:1597-1603
ISSN:1606-9749
Container-title:Water Supply
language:en
Short-container-title:

Author:

Saghari Abolfazl¹,Saneie Mojtaba²,Hosseini Khosrow³

Affiliation:

1. Semnan University, Semnan, Iran

2. Soil Conservation and Watershed Management Research Institute, Tehran, Iran

3. Faculty of Civil Engineering, Semnan University, Semnan, Iran

Abstract

Abstract Piano-key weirs can be used instead of classic rectangular side-weirs (CRSWs) to increase the discharge capacity of side weirs. So far, no research has been done on trapezoidal piano-key side weirs (TPKSWs) in a curved channel. This study examines the effect of using one or two cycles in TPKSWs on discharge capacity, having the same total width and upstream–downstream length. Dimensional analysis has been performed to determine the dimensionless parameters affecting the discharge coefficient related to the developed length (CdL) of TPKSWs in a curved channel. An empirical equation for CdL has been proposed based on the experimental results. There is a good agreement between estimated and measured data. Results showed that the discharge coefficient related to the total width of a TPKSW is 1.7 to 5.6 times higher than that of a CRSW. Also, the CdL of a one-cycle TPKSW is 1.4 to 2 times higher than that of a two-cycle TPKSW.

Publisher

IWA Publishing

Subject

Water Science and Technology

Link

http://iwaponline.com/ws/article-pdf/19/6/1597/578582/ws019061597.pdf

Reference15 articles.

1. Side-weir flow in curved channels;Journal of Irrigation and Drainage Engineering ASCE,1998

2. Discharge coefficient of side weirs in curved channels;Proceedings of the Institution of Civil Engineers – Water Management,2012

3. Hydraulic comparison between piano key weirs and labyrinth spillways,2011

4. Flow in 180° open channel rigid boundary bends;Journal of Hydraulic Engineering ASCE,1977

5. Experimental and numerical study of the hydraulic performance of a trapezoidal piano key weir;Erpicum,2013

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