Bedload transport from analytical and turbulence phenomenological perspectives  

作　　者：Subhasish Dey Sk Zeeshan Ali Ellora Padhi 

机构地区：[1]Department of Civil Engineering,Indian Institute of Technology Kharagpur,West Bengal 721302,India [2]Physics and Applied Mathematics Unit,Indian Statistical Institute Kolkata,West Bengal 700108,India [3]Department of Hydraulic Engineering,State Key Laboratory of Hydro-Science and Engineering,Tsinghua University,Beijing 100084,China

出　　处：《International Journal of Sediment Research》2019年第6期509-530,共22页国际泥沙研究（英文版）

基　　金：the JC Bose Fellowship Project (JBD) for pursuing this work

摘　　要：In this paper,we present the dynamics of bedload transport from two different perspectives.They are the analytical perspective and the turbulence phenomenological perspective.In bedload transport from the analytical perspective,we highlight the systematic advances in the analytical modelling of bedload transport over the decades.These advances are principally classified into three broad foundations,namely,the deterministic foundation,that includes the bed shear stress concept,stream power concept,force balance concept and bedform concept,and the probabilistic foundation and the turbulence phenomenological foundation of bedload transport.The bedload transport from the turbulence phenomenological perspective brings into focus the bedload-induced turbulence phenomenology,including the hydrodynamics of mobile-bed and water-worked bed flows.We also discuss the recent advances in the biofilm-coated bedload transport.Finally,conclusion is drawn,highlighting the major research challenges.In this paper,we present the dynamics of bedload transport from two different perspectives.They are the analytical perspective and the turbulence phenomenological perspective.In bedload transport from the analytical perspective,we highlight the systematic advances in the analytical modelling of bedload transport over the decades.These advances are principally classified into three broad foundations,namely,the deterministic foundation,that includes the bed shear stress concept,stream power concept,force balance concept and bedform concept,and the probabilistic foundation and the turbulence phenomenological foundation of bedload transport.The bedload transport from the turbulence phenomenological perspective brings into focus the bedload-induced turbulence phenomenology,including the hydrodynamics of mobile-bed and water-worked bed flows.We also discuss the recent advances in the biofilm-coated bedload transport.Finally,conclusion is drawn,highlighting the major research challenges.

关 键 词：BEDLOAD TRANSPORT FLUVIAL hydraulics SEDIMENT TRANSPORT TURBULENT flow 

分 类 号：TV1[水利工程]