Effect of Lateral Deflector on Outlet Cavity Lengths

Effect of Lateral Deflector on Outlet Cavity Lengths

Experimental results indicate that an additional lateral deflector built on the outlet can increase the cavity length in aerators with a sudden vertical drop and lateral enlargement. Observation shows that the cavity length is affected by both the vertical and lateral dimensions of the deflector. A...

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Veröffentlicht in:Journal of hydraulic engineering (New York, N.Y.) N.Y.), 2003-07, Vol.129 (7), p.536-540
Hauptverfasser: Nie, Meng-Xi, Wang, Xu-Shenng, Wu, Guang-Hao
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Sprache:eng
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Applied sciences
Buildings. Public works
Exact sciences and technology
Hydraulic constructions
TECHNICAL NOTES
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container_title Journal of hydraulic engineering (New York, N.Y.)
container_volume 129
creator Nie, Meng-Xi
Wang, Xu-Shenng
Wu, Guang-Hao
description Experimental results indicate that an additional lateral deflector built on the outlet can increase the cavity length in aerators with a sudden vertical drop and lateral enlargement. Observation shows that the cavity length is affected by both the vertical and lateral dimensions of the deflector. A larger deflector increases the cavity length substantially and connects the bottom cavity with the sidewall ones which results in more sufficient aeration. However, the backward flow on the bottom may reduce the length of bottom cavity and the effectiveness of aeration. Factors affecting the bottom cavity length, including the slope of the outlet, the bucket angle of sill, and the shape of lateral deflector, should be included in the estimation of the bottom cavity length. Based on test results, an equation has been proposed to predict the cavity length.
doi_str_mv 10.1061/(ASCE)0733-9429(2003)129:7(536)
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source American Society of Civil Engineers:NESLI2:Journals:2014
subjects Applied sciences
Buildings. Public works
Exact sciences and technology
Hydraulic constructions
TECHNICAL NOTES
title Effect of Lateral Deflector on Outlet Cavity Lengths
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