OSCILLATION SAND RIPPLES IN VISCOUS FLUIDS.

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Kaneko, Arata
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FLOW OF FLUIDS - Viscous - SAND; SILICA; -; Oscillations;
D O I
10.2208/jscej1969.1981.307_113
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摘要
The sand ripples induced under oscillatory flow and water waves have been a subject of practical interest in connection with the sand transport in a nearshore region. The main purpose of this study is to clarify the effect of the thickness of the Stokes layer delta on ripple formation by varying the fluid viscosity in a wide range of its value. The computed results are compared with the observed ones in viscous fluids. The methods of experiments and numerical analysis are described. The computed streaming patterns are presented and compared with those observed above real ripples. A grouping and length-scales of ripples are discussed.
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页码:113 / 124
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