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http://dx.doi.org/10.12652/Ksce.2011.31.1B.057

An Experimental Study to Estimate the Energy Change by Side Weir  

Cho, Hong Je (울산대학교 건설환경공학부)
Yoon, Yeong Bae (울산대학교 건설환경공학부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.1B, 2011 , pp. 57-62 More about this Journal
Abstract
The river disaster caused by installation of hydraulic structures on the river gives varieties to flowing water stream, tractive force and so on. In this study, the changes of tractive force and energy from the side weir installation for the purpose of flood control was analyzed through laboratory experiment. The experiments of the pre and after-installation have been performed under conditions that waterway is trapezoidal shape, waterway slope ranges are from 0.1 to 1.0 percentage, and flow rates are 25 l/sec. As results, the specific energy ratio increases in the higher slope and at a certain point, larger specific energy ratio showed than 1 in the 1.0% slope. The tractive force ratio decreases in higher slope and the sections that tractive force ratio appeared higher than 1 are more widespread in the direction of downstream. And calculated tractive force is about 1.3.
Keywords
energy change; side weir; specific energy; tractive force;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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