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viscous-wave-interaction
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Viscous wave interaction due to motion of a surface wave over a sediment bed
, Article Journal of Offshore Mechanics and Arctic Engineering ; Volume 128, Issue 4 , 2006 , Pages 276-279 ; 08927219 (ISSN) ; Lawrence, G. A ; Sharif University of Technology
2006
Abstract
The results of a flume experiment and a theoretical study of surface wave motion over a fluidized bed are presented. It is shown that a resonant wave interaction between a surface wave and two interfacial waves at the interface of the fresh water and the fluidized bed is a strong mechanism for instability of the interface and the subsequent mixing of the layers. The interfacial waves are subharmonic to the surface wave and form a standing wave at the interface. The interaction is investigated theoretically using a viscous interaction analysis. It is shown that surface wave height and viscous effects are the determining factors in the instability mechanism. The results indicate that the net...