TURBIDITY - SEDIMENTATION IN CLOSED-END CHANNELS
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Keywords

turbidity
sedimentation
closed-end channel
channel

How to Cite

Lin, C.-P., Lott, J. W., & Mehta, A. J. (1986). TURBIDITY - SEDIMENTATION IN CLOSED-END CHANNELS. Coastal Engineering Proceedings, 1(20), 98. https://doi.org/10.9753/icce.v20.98

Abstract

In order to investigate the mechanism by which turbidity currents cause sedimentation in closed-end channels such as pier slips or residential canals, a laboratory investigation using fine-grained sediments was carried out. Two similar flume systems were used, each consisting of a main channel carrying sediment-laden flow and an orthogonally placed closed-end channel with a gate at the entrance. Characteristics of the turbidity current and sediment deposition in the closed-end channel were investigated following gate opening. Behavioral similarities between turbidity current and non-settling gravity currents were observed. Several properties, e.g. suspension concentration, showed exponential-type decay with distance. The ratio of sediment settling velocity to the densimetric velocity was found to be a useful parameter for comparing different test results. A relationship for estimating the sediment influx through the entrance is presented.
https://doi.org/10.9753/icce.v20.98
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