Influence of Wind and Grain Size on Migration of Asymmetric Sand Waves

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	Influence of Wind and Grain Size on Migration of Asymmetric Sand Waves
	Zou SM(邹舒觅); Lin M(林缅); Lin M(林缅)
会议录名称	Proceedings of the Sixteenth (2006) International Offshore and Polar Engineering Conference,2006,1:527-532
	2006-05-28
会议名称	16th International Offshore and Polar Engineering Conference (ISOPE 2006)
会议日期	MAY 28-JUN 02, 2006
会议地点	San Francisco, CA
摘要	Large parts of shallow seas are covered by regular seabed patterns and sand wave is one kind of these patterns. The instability of the sedimentary structures may hazard pipelines and the foundations of offshore structures. In the last decade or so, it's a focus for engineers to investigate the movement mechanism of sand waves. Previous theoretical studies of the subject have developed a general model to predict the growth and migration of sand waves, which is based on the two-dimensional vertical shallow water equations and the bed-form deformation equations. Although the relation between wave-current flow and sand bed deformation has been established, the topographic influence has not been considered in the model. In this paper some special patterns, which are asymmetric and close to the reality, are represent as the perturbed seabed and the evolution of sand waves is calculated. The combination of a steady flow induced by wind and a sinusoidal tidal flow is considered as the basic flow. Finally the relations of some parameters (grain size, etc.) and sand waves' growth and migration are discussed, and the growth rate and migration speeds of asymmetric sand waves are carried out.
WOS记录号	WOS:000240310900082
收录类别	CPCI-S ; EI
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/13827
专题	力学所知识产出(1956-2008)
通讯作者	Lin M(林缅)
推荐引用方式 GB/T 7714	Zou SM,Lin M,Lin M. Influence of Wind and Grain Size on Migration of Asymmetric Sand Waves[C]Proceedings of the Sixteenth (2006) International Offshore and Polar Engineering Conference,2006,1:527-532,2006.

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