Laboratory experiments on a near-bed turbid layer

Hydraulics Research Wallingford, - (1987) Laboratory experiments on a near-bed turbid layer. Technical Report. Hydraulics Research Wallingford.

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Abstract

A few years ago a study was carried out to determine the optimum layout of a major port enlargement and redevelopment project. It was, however, acknowledged that the range and combination of wave and tidal conditions under which the turbid layer could form has not been fully explored. It was also appreciated that although existing equipment could measure the in-situ density of muddy deposits, no instrumentation had yet been developed to confirm the formation and record the movement of a fluid mud layer in nature. A series of flume tests were conducted on four muds of different origin under the separate and combined action of mono-frequency waves and uni-directional currents. The object of the tests was to establish the conditions needed for the creation of a highly turbid, near-bed layer capable of being transported by weak currents with minimal mixing with the water above.

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