NDLI: Experiments on mixing and dissipation in internal solitary waves over two triangular obstacles

Content Provider	Springer Nature Link
Author	Chen, Chen Yuan Hsu, John R. C. Cheng, Ming Hung Chen, Cheng Wu
Copyright Year	2008
Abstract	A series of laboratory experiments was undertaken in a stratified two-layer fluid to investigate the energetics of the interaction between an internal solitary wave (ISW) and triangular obstacles, as well as to determine the partitioning of ISW energy and its subsequent dynamics. The ISW energy was dissipated as a result of internal breaking and turbulent mixing induced by wave instability. Tests involving different combinations of triangular obstacles in various heights and intervals and ISW of different amplitudes were performed. The wave features resulting from the interaction of an ISW and double obstacles were found to differ from those of single obstacle. The incident energy of an ISW was either reflecting back from the obstacles, dissipated through turbulent mixing, or transmitted over the double obstacles. Reduction in wave energy increased as the intervals between obstacles reduced. For two obstacles in different heights, energy dissipation was greater in the case with a higher obstacle ahead of a lower one. However, the overall performance was dependent on the relative height of the obstacles, relative water depth of the upper and bottom layer, in addition to the intervals between the obstacles.
Starting Page	199
Ending Page	214
Page Count	16
File Format	PDF
ISSN	15677419
Journal	Environmental Fluid Mechanics
Volume Number	8
Issue Number	3
e-ISSN	15731510
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-03-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Internal solitary wave Laboratory experiments Energy dissipation Submerged obstacles Wave transmission Oceanography Meteorology/Climatology Hydrogeology Mechanics Environmental Physics
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Water Science and Technology

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