Particle trajectories under interactions between solitary waves and a linear shear current

doi:10.1016/j.taml.2020.01.011

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Particle trajectories under interactions between solitary waves and a linear shear current
	Guan X(关昕)
刊名	Theoretical and Applied Mechanics Letters ; 2
	2020-01
卷号	10 页码:125-131
关键词	Direct numerical simulation Linear shear current Particle trajectories Solitary waves
DOI	10.1016/j.taml.2020.01.011
英文摘要	This paper is concerned with particle trajectories beneath solitary waves when a linear shear current exists. The fluid is assumed to be incompressible and inviscid, lying on a flat bed. Classical asymptotic expansion is used to obtain a Korteweg-de Vries (KdV) equation, then a forth-order Runge-Kutta method is applied to get the approximate particle trajectories. On the other hand, our particular attention is paid to the direct numerical simulation (DNS) to the original Euler equations. A conformal map is used to solve the nonlinear boundary value problem. Highaccuracy numerical solutions are then obtained through the fast Fourier transform (FFT) and compared with the asymptotic solutions, which shows a good agreement when wave amplitude is small. Further, it also yields that there are different types of particle trajectories. Most surprisingly, periodic motion of particles could exist under solitary waves, which is due to the wave-current interaction.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86650]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China 2.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China
推荐引用方式 GB/T 7714	Guan X. Particle trajectories under interactions between solitary waves and a linear shear current[J]. Theoretical and Applied Mechanics Letters, 2,2020,10:125-131.
APA	关昕.(2020).Particle trajectories under interactions between solitary waves and a linear shear current.Theoretical and Applied Mechanics Letters,10,125-131.
MLA	关昕."Particle trajectories under interactions between solitary waves and a linear shear current".Theoretical and Applied Mechanics Letters 10(2020):125-131.