Journal of Hydrodynamics

, Volume 18, Issue 1, pp 294–299 | Cite as

Critical Shear Stress for Deposition of Cohesive Sediments in Mai Po

  • W. Y. Chan
  • Onyx W. H. Wai
  • Y. S. Li
Session A5

Abstract

A series of tests was conducted to investigate the deposition behaviors of the cohesive sediments collected from Mai Po (Hong Kong) in wet seasons when the salinity was low. The sediment suspended by high shear stress in water with zero salinity was allowed to deposit by lowering the shear stress level. The results show that the sediment has a unique transport characteristic. The sediment began to deposit steadily once it undergoes a weaker shear stress. The underlying reasons of this phenomenon and the application to a sediment transport model are discussed in this paper.

Keywords

critical shear stress deposition cohesive sediments flocculation multiple class sediment Mai Po 

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Copyright information

© China Ship Scientific Research Center 2006

Authors and Affiliations

  • W. Y. Chan
    • 1
  • Onyx W. H. Wai
    • 1
  • Y. S. Li
    • 1
  1. 1.The Hong Kong Polytechnic UniversityHong Kong SARChina

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