Short and long waves over a muddy seabed

CORC > 力学研究所 > 中国科学院力学研究所 > 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
刊名	Journal of Fluid Mechanics
	2010
通讯作者邮箱	ccmei@mit.edu
卷号	643 页码:33-58
ISSN号	0022-1120
通讯作者	Mei CC
合作状况	国内
中文摘要	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.
类目[WOS]	Mechanics ; Physics, Fluids & Plasmas
研究领域[WOS]	Mechanics ; Physics
关键词[WOS]	WATER-WAVES ; MODEL ; FLUID ; LAYER ; TRANSPORT ; BED
收录类别	SCI
资助信息	US Office of Naval Research as a part of the Multidisciplinary University Research Initiative (MURI) [N00014-06-1-0718]
原文出处	http://dx.doi.org/10.1017/S0022112009991923
语种	英语
WOS记录号	WOS:000274540900002
公开日期	2011-03-01 ; 2011-03-30
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/43611]
专题	力学研究所_水动力学与海洋工程重点实验室(2009-2011)
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.