Experimental Investigation of the Effect of Consolidation Time on Erosion Rate of cohesive sediment

Document Type : Research Paper

Authors

1 Ph.D. Student, Water and Science Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad.

2 Associate Professor of Water and Science Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad.

3 Associate Professor, of Water Engineering Department, Faculty of Agriculture, Shahrekord University.

4 Professor of Water and Science Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad.

Abstract

The erosion of the deposited cohesive sediments by flow is a complex phenomenon. In general, hydraulic transmission of fine-grained sediments include depositional processes, consolidation and erosion. Cohesive sediments caused by physical-chemical effects on particle surfaces due to their strong ionic surfaces tend to form masses of low density or flocs. Depending on the conditions of the flow and resistance of the sedimentary masses, the erosion of sediments can occur in three different forms of floc, superficial and massive states (Mehta, 1991; Winterwerp and van Kestern, 2004). This study focuses on the effect of consolidation time on erosion rate of the deposited cohesive sediment in an annular experiment flume. 

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References

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Irrigation Sciences and Engineering
Volume 43, Issue 2
July 2020
Pages 171-186

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History

  • Receive Date: 10 May 2018
  • Revise Date: 06 November 2018
  • Accept Date: 11 November 2018
  • Publish Date: 21 June 2020

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