Short and long waves over a muddy seabed

doi:10.1017/S0022112009991923

IMECH-IR > 水动力学与海洋工程重点实验室(2009-2011)

	Short and long waves over a muddy seabed
	Mei CC; Krotov M; Huang ZH; 呼和敖德
发表期刊	Journal of Fluid Mechanics
	2010
卷号	643 页码:33-58
ISSN	0022-1120
摘要	The available experimental results have shown that in time-periodic motion the rheology of fluid mud displays complex viscoelastic behaviour. Based on the measured rheology of fluid mud from two field sites, we study the interaction of water waves and fluid mud by a two-layered model in which the water above is assumed to be inviscid and the mud below is viscoelastic. As the fluid-mud layer in shallow seas is usually much thinner than the water layer above, the sharp contrast of scales enables an approximate analytical theory for the interaction between fluid mud and small-amplitude waves with a narrow frequency band. It is shown that at the leading order and within a short distance of a few wavelengths, wave pressure from above forces mud motion below. Over a Much longer distance, waves are modified by the accumulative dissipation in mud. At the next order, infragravity waves owing to convective inertia (or radiation stresses) are affected indirectly by mud motion through the slow modulation of the short waves. Quantitative predictions are made for mud samples of several concentrations and from two different field sites.
DOI	10.1017/S0022112009991923
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000274540900002
关键词[WOS]	WATER-WAVES ; MODEL ; FLUID ; LAYER ; TRANSPORT ; BED
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
项目资助者	US Office of Naval Research as a part of the Multidisciplinary University Research Initiative (MURI) [N00014-06-1-0718]
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/43611
专题	水动力学与海洋工程重点实验室(2009-2011)
通讯作者	Mei CC
推荐引用方式 GB/T 7714	Mei CC,Krotov M,Huang ZH,et al. Short and long waves over a muddy seabed[J]. Journal of Fluid Mechanics,2010,643:33-58.
APA	Mei CC,Krotov M,Huang ZH,&呼和敖德.(2010).Short and long waves over a muddy seabed.Journal of Fluid Mechanics,643,33-58.
MLA	Mei CC,et al."Short and long waves over a muddy seabed".Journal of Fluid Mechanics 643(2010):33-58.

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