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Accession number:  20121214874372

  Title:  Advances in research on velocity distribution and bed-load transport in unsteady open-channel flow
  Authors:  Ma, Ai-Xing1 ; Lu, Yan1; Lu, Yong-Jun1 ; Cao, Min-Xiong1  
  Author affiliation:  1 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China  
  Corresponding author:  Lu, Y.-J. (yjlu@nhri.cn)  
  Source title:  Shuikexue Jinzhan/Advances in Water Science
  Abbreviated source title:  Shuikexue Jinzhan
  Volume:  23
  Issue:  1
  Issue date:  January 2012
  Publication year:  2012
  Pages:  134-142
  Language:  Chinese
  ISSN:  10016791  
  CODEN:  SHUJE6  
  Document type:  Journal article (JA)
  Publisher:  China Water Power Press, no. 1 Xikang Road, Nanjing, 210024, China
  Abstract:  The vertical velocity profile and bed-load transport in unsteady open-channel flow are major concerns of hydraulics and mechanics of sediment transport. In recent years, many researchers have come to do some serious explorations into the nature of the problems. Progresses on the subject are achieved and challenges for future research are pointed out. In this article we provide an overview of related research achievements including the experimental methodology, the vertical velocity profile and the bed shear stress in unsteady open-channel flow, the flow-sediment hysteresis effect and its reasoning, and the bed-load transport formula. Major deficiencies in current work are pointed out and future research suggestions of topics for focus issues are provided, which includes the study of the law of non-uniform sediment transport in unsteady flow with the advanced instruments.
  Number of references:  47
  Main heading:  Research  
  Controlled terms:  Anoxic sediments  -  Open channel flow  -  Sediment transport  -  Shear stress  
  Uncontrolled terms:  Bed shear stresss  -  Bed-load transport  -  Experimental methodology  -  Hysteresis effect  -  Unsteadiness parameter  -  Vertical velocity distribution  -  Vertical velocity profiles  
  Classification code:  421 Strength of Building Materials; Mechanical Properties -  483 Soil Mechanics and Foundations -  483.1 Soils and Soil Mechanics -  631.1 Fluid Flow, General -  631.3 Flow of Fluid-Like Materials -  901.3 Engineering Research
  DOI:  CNKI:32.1309.P.20120104.2014.013
  Database:  Compendex
   Compilation and indexing terms, © 2012 Elsevier Inc.

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