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

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	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)
	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
通讯作者	林缅
中文摘要	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.
收录类别	CPCI-S ; EI
会议录	Proceedings of the Sixteenth (2006) International Offshore and Polar Engineering Conference,2006,1:527-532
学科主题	力学
语种	英语
ISSN号	1-880653-66-4/1098-6189
WOS记录号	WOS:000240310900082
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/13827]
专题	力学研究所_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]. 见:16th International Offshore and Polar Engineering Conference (ISOPE 2006). San Francisco, CA. MAY 28-JUN 02, 2006.