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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT : A Quasi-Two-Dimensional Method for Reservoir Sedimentation
A Quasi-Two-Dimensional Method for Reservoir Sedimentation
Author : Seonmin Lee and Sung-Uk Choi
This study presents a quasi-two-dimensional numerical model that is capable of simulating sedimentation and flushing in reservoir. The lateral distribution method is used to distribute the discharge over the width of the cross section, based on the channel geometry and momentum balance. The quasi-steady assumption of steady flow but time-dependent morphological change, is made. For validation, the proposed method is applied to a case of sedimentation in Xiaolangdi Dam, China during the period of May, 2003 ? Oct., 2006. The computational reach is 120 km long, consisting of downstream reservoir regime with the backwater effect and upstream river regime. Computed results include the longitudinal profile of the thalweg and the lateral profiles of the channel cross section and depth-averaged velocity. The simulated results are compared with measured data and with predictions by GSTARS4.
File Size : 324,150 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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