Experimental Study on Suspended Sediment Concentration and Its Vertical Distribution under Spilling Breaking Wave Action

Experimental Study on Suspended Sediment Concentration and Its Vertical Distribution under Spilling Breaking Wave Action

时间:2012-07-18 交通运输论文
Abstract:In this paper,flume experiments are focused on sediment transport inside and outside the surf zone.According to the energy dissipation balance principle of sediment-laden flow and the similarity between energy dissipation of spilling breaking wave and hydraulic jump,formulas are proposed to predict time averaged suspended sediment concentration under both non-breaking and breaking waves.Assuming that the sediment diffusion coefficient,which is related with energy dissipation,is proportional to water depth,formulas are proposed to predict close-to-bed suspended sediment concentration and vertical distribution of suspended sediment under spilling breaking waves,and the prediction shows a good agreement with the measurement. 作者: Author: XIA Yun-feng[1]  XU Hua[1]  CHEN Zhong[2]  WU Dao-wen[1]  ZHANG Shi-zhao[1] 作者单位: Nanjing Hydraulic Research Institute Nanjing 210029, China;The State Key Laboratory of Hydrology-Water Resources & Hydraulic Engineering, Nanjing 210029, China;Waterway and Sediment Engineering of MC, Nanjing 210029, ChinaShanghai Waterway Engineering Design and Consulting Co., Ltd, Shanghai 200120, China 期 刊: 中国海洋工程(英文版)   ISTICEISCI Journal: China Ocean Engineering 年,卷(期): 2011, 25(4) 分类号: U656.24 Keywords: silty sand    breaking wave    energy dissipation    suspended sediment concentration    vertical distribution    机标分类号: P7 TV1 机标关键词: Breaking Wave    Vertical Distribution    Sediment Concentration    suspended sediment    energy dissipation    sediment concentration    breaking waves    vertical distribution    diffusion coefficient    sediment transport    hydraulic jump    water depth    agreement    related    paper    time    flow 基金项目: the Ministry of Communications,Nanjing Hydraulic Research Institute Experimental Study on Suspended Sediment Concentration and Its Vertical Distribution under Spilling Breaking Wave Actions in Silty Coast[期刊论文]  中国海洋工程(英文版) --2011, 25(4)In this paper,flume experiments are focused on sediment transport inside and outside the surf zone.According to the energy dissipation balance principle of sediment-laden flow and the similarity betwee...