IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT : Fully Drawdown Experimental Investigation on Sediment Erosion through an Orifice
Fully Drawdown Experimental Investigation on Sediment Erosion through an Orifice
Author : Shuai Guo, Tuqiao Zhang and David. Z. Zhu
This study present falling head tests on sediment erosion behavior through a circular orifice. The setup is a rectangular box of 505060 cm. Two classes of uniformly screened sand (d = p 0.13, 0.25 mm) were used as the sediment material. By changing water head (h =2, 4, 6 cm) above the w sand surface, the geometry of the erosion void were measured after the discharge finishes. Experimental findings include: 1) the erosion process can be generally divided into three stages: initial stage, steady stage, and seepage stage.; 2) water head has significant influences on the erosion void geometry including the volume and width, while particle size has more influences on the sand and water discharge rates; 3) during discharge, the sand and water discharge rates are linearly related before the test end.
File Size : 339,656 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT
Date Published : 18/07/2016
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