Rossby Solitary Waves Generated by Wavy Bottom in Stratified Fluids

doi:10.1155/2013/289269

IOCAS-IR > 海洋环流与波动重点实验室

	Rossby Solitary Waves Generated by Wavy Bottom in Stratified Fluids
	Yang, Hongwei 1; Yin, Baoshu 2,3; Zhong, Bo 4; Dong, Huanhe 1; Yin, BS
	2013
发表期刊	ADVANCES IN MECHANICAL ENGINEERING
ISSN	1687-8132
页码	289269
文章类型	Article
摘要	Rossby solitary waves generated by a wavy bottom are studied in stratified fluids. From the quasigeostrophic vorticity equation including a wavy bottom and dissipation, by employing perturbation expansions and stretching transforms of time and space, a forced KdV-ILW-Burgers equation is derived through a new scale analysis, modelling the evolution of Rossby solitary waves. By analysis and calculation, based on the conservation relations of the KdV-ILW-Burgers equation, the conservation laws of Rossby solitary waves are obtained. Finally, the numerical solutions of the forced KdV-ILW-Burgers equation are given by using the pseudospectral method, and the evolutional feature of solitary waves generated by a wavy bottom is discussed. The results show that, besides the solitary waves, an additional harmonic wave appears in the wavy bottom forcing region, and they propagate independently and do not interfere with each other. Furthermore, the wavy bottom forcing can prevent wave breaking to some extent. Meanwhile, the effect of dissipation and detuning parameter on Rossby solitary waves is also studied. Research on the wavy bottom effect on the Rossby solitary waves dynamics is of interest in analytical geophysical fluid dynamics.; Rossby solitary waves generated by a wavy bottom are studied in stratified fluids. From the quasigeostrophic vorticity equation including a wavy bottom and dissipation, by employing perturbation expansions and stretching transforms of time and space, a forced KdV-ILW-Burgers equation is derived through a new scale analysis, modelling the evolution of Rossby solitary waves. By analysis and calculation, based on the conservation relations of the KdV-ILW-Burgers equation, the conservation laws of Rossby solitary waves are obtained. Finally, the numerical solutions of the forced KdV-ILW-Burgers equation are given by using the pseudospectral method, and the evolutional feature of solitary waves generated by a wavy bottom is discussed. The results show that, besides the solitary waves, an additional harmonic wave appears in the wavy bottom forcing region, and they propagate independently and do not interfere with each other. Furthermore, the wavy bottom forcing can prevent wave breaking to some extent. Meanwhile, the effect of dissipation and detuning parameter on Rossby solitary waves is also studied. Research on the wavy bottom effect on the Rossby solitary waves dynamics is of interest in analytical geophysical fluid dynamics.
学科领域	Thermodynamics ; Engineering
DOI	10.1155/2013/289269
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Thermodynamics ; Engineering
WOS类目	Thermodynamics ; Engineering, Mechanical
WOS记录号	WOS:000314414100001
WOS关键词	UNSTABLE TOPOGRAPHY ; SURFACE-WAVE ; FLOWS ; BLOCKING ; EQUATION
WOS标题词	Science & Technology ; Physical Sciences ; Technology
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/16432
专题	海洋环流与波动重点实验室
通讯作者	Yin, BS
作者单位	1.Shandong Univ Sci & Technol, Coll Informat Sci & Engn, Qingdao 266590, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 3.Chinese Acad Sci, Key Lab Ocean Circulat & Wave, Qingdao 266071, Shandong, Peoples R China 4.Beijing Jiaotong Univ, Fac Sci, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hongwei,Yin, Baoshu,Zhong, Bo,et al. Rossby Solitary Waves Generated by Wavy Bottom in Stratified Fluids[J]. ADVANCES IN MECHANICAL ENGINEERING,2013:289269.
APA	Yang, Hongwei,Yin, Baoshu,Zhong, Bo,Dong, Huanhe,&Yin, BS.(2013).Rossby Solitary Waves Generated by Wavy Bottom in Stratified Fluids.ADVANCES IN MECHANICAL ENGINEERING,289269.
MLA	Yang, Hongwei,et al."Rossby Solitary Waves Generated by Wavy Bottom in Stratified Fluids".ADVANCES IN MECHANICAL ENGINEERING (2013):289269.

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