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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT : 3D Numerical Modeling on Sand Trapping Tube with Spiral Flow
3D Numerical Modeling on Sand Trapping Tube with Spiral Flow
Author : Yan Tian, Genguang Zhang and Zipeng Qin
Sand trapping tube is usually used in head work of water diversion project with the low cost and high efficiency to remove bed sediment. Based on the closed Reynolds equation with k-e turbulence model, volume of fluid (VOF) method is adopted to track the free surface and the finite volume method is used to discretize the equations, the flow field in sand trapping tube is obtained by the commercial CFD code FLUENT. A series of numerical simulations that reproduce particular published laboratory flows are presented. Rather complete flow field information, for example, tangential flow velocity, axial velocity and radial velocity distribution in sand trapping tube are obtained. In order to identify the importance of various controlling parameters to flow field, such as water depth, open width and diameter of sand trapping tube, the sand trapping tube and channel axis angle , sand trapping tube opening length , sand trapping tube longitudinal slope are analyzed in detail. It provides a certain basis for study of bed load transport mechanism and design of sand trapping tube with spiral flow in open channel.
File Size : 737,706 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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