Three-dimensional dispersion of momentum in wave-induced nearshore currents

被引：47
|
作者：
Putrevu, U
Svendsen, IA
机构：
[1] NW Res Associates Inc, Bellevue, WA 98007 USA
[2] Univ Delaware, Ctr Appl Coastal Res, Newark, DE 19716 USA
来源：
EUROPEAN JOURNAL OF MECHANICS B-FLUIDS | 1999年 / 18卷 / 03期
关键词：
D O I：
10.1016/S0997-7546(99)80038-7
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper we consider the circulation induced by waves breaking near a coast. We show that the vertical nonuniformity of the wave-averaged horizontal velocities leads to mixing-like terms for the horizontal velocity in the depth-integrated equations of momentum. The mechanism is analogous to Taylor's (1953, 1954) shear-dispersion mechanism for solutes in a shear flow. The results presented here are an extension of the results found by Svendsen & Putrevu (1994) to the general case of unsteady how over an arbitrary bottom topography. (C) Elsevier, Paris.
引用
收藏
页码：409 / 427
页数：19
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