Title : ( The effect of increasing the number of cycles on the performance of labyrinth side weir )
Authors: Hamed Zahedi khameneh , Saeed Reza Khodashenas , Kazem Esmaili ,
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Abstract
Side weir is one of the most common hydraulic structures,which is used as adeviatory structure in rivers,irrigation and drainage channels and also in urban sewage collection systems.One of the ways to improve the efficiency of the performance of the side weir is changing the geometry of the weir. The effect of deformation and cycle number increase on the hydraulics of the flow was investigated in the side weir,through conducting 360 experiments on thelabyrinthweirinthreecycles2,1and4and the dischargecoefficient wasobtainedfordifferentmodes.Theresultsshowedthatcyclenumber increase leadstothereductionof flawssuchasEddy flows,decreaseofweirinputandsudden flow increase alongtheweiranditalsoreducestheprojectionlengthoftheweir.Theresultsindicatedthat the weirswithcycles1and2havehigher Cm. Also,uponcomparisonwithrectangularweirs,labyrinth weirs increase Cm 1.5to3timesand30%incomparisonwithmodified obliquesideweirs(inallcycles).
Keywords
, Labyrinth side weir, Discharge coefficient, Water surface profile, Experimental test, Number of cycle
@article{paperid:1043107,
author = {Zahedi Khameneh, Hamed and Khodashenas, Saeed Reza and Esmaili, Kazem},
title = {The effect of increasing the number of cycles on the performance of labyrinth side weir},
journal = {Flow Measurement and Instrumentation},
year = {2014},
volume = {39},
number = {39},
month = {October},
issn = {0955-5986},
pages = {35--45},
numpages = {10},
keywords = {Labyrinth side weir; Discharge coefficient; Water surface profile; Experimental test; Number of cycle},
}
%0 Journal Article
%T The effect of increasing the number of cycles on the performance of labyrinth side weir
%A Zahedi Khameneh, Hamed
%A Khodashenas, Saeed Reza
%A Esmaili, Kazem
%J Flow Measurement and Instrumentation
%@ 0955-5986
%D 2014
