FLOW-FREE SEDIMENT HYSTERESIS IN SEDIMENT-STRATIFIED COASTAL WATERS

Rui G. Costa; Ashish J. Mehta

doi:10.9753/icce.v22.%p

No. 22 (1990), Conference Proceedings

No. 22 (1990)

FLOW-FREE SEDIMENT HYSTERESIS IN SEDIMENT-STRATIFIED COASTAL WATERS

Conference Proceedings

https://doi.org/10.9753/icce.v22.%25p

Published 1990-01-29

Rui G. Costa⁺⁻
Ashish J. Mehta⁺⁻

Rui G. Costa

Laboratorio Nacional de Engenharia Civil

Ashish J. Mehta

Department of Coastal and Oceanograpliic Engineering, University of Florida

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Keywords

sediment stratified water
stratified water
flow-fine sediment hysteresis

How to Cite

Costa, R. G., & Mehta, A. J. (1990). FLOW-FREE SEDIMENT HYSTERESIS IN SEDIMENT-STRATIFIED COASTAL WATERS. Coastal Engineering Proceedings, 1(22). https://doi.org/10.9753/icce.v22.%p

Abstract

Hysteresis in the relationship between suspended sediment concentration and the flow velocity is shown to be influenced by sediment-induced flow stratification in high energy coastal environment. A 1-D numerical approach combined with field observation from Hangzhou Bay, China is used to highlight the effects of concentration dependent settling velocity, buoyancy stabilized mass diffusion and bottom sediment fluxes on hysteresis. Typical formulations for the bottom fluxes are believed to have limited utility in high concentration environments.

https://doi.org/10.9753/icce.v22.%25p

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FLOW-FREE SEDIMENT HYSTERESIS IN SEDIMENT-STRATIFIED COASTAL WATERS

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