DOI: 10.1002/2017JC013273
Scopus记录号: 2-s2.0-85044534178
论文题名: Dynamics of Gravity Currents in the Presence of Surface Waves
作者: Stancanelli L.M. ; Musumeci R.E. ; Foti E.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 3 起始页码: 2254
结束页码: 2273
语种: 英语
英文关键词: concentration profile
; density current
; front velocity
; linear wave theory
; mixing
; slumping phase
Scopus关键词: concentration (composition)
; density front
; experimental study
; gravity survey
; Lagrangian analysis
; mass transport
; mixing
; oceanic current
; oscillation
; slumping
; surface wave
; velocity profile
; wave-current interaction
英文摘要: The gravity current dynamics in the presence of regular surface waves is investigated experimentally. The aim is to determine the influence of the wave-induced velocity field on gravity current kinematic parameters and on the concentration distribution. In the presence of surface waves, the front shows a pulsating behavior while periodic oscillations are observed at the interface between lighter and denser fluids. The dynamics of such processes is related to the wave parameters. Present results confirm that the lock-exchange generated front velocity is strongly influenced by the oscillatory motion and it may be increased or decreased depending on the Lagrangian mass transport induced by the surface waves. Compared to the propagation in the absence of waves, the dynamics of the concentration field is governed by an enhancement of mixing process due to the orbital motion. © 2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114300
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil Engineering and Architecture, University of CataniaCatania, Italy
Recommended Citation:
Stancanelli L.M.,Musumeci R.E.,Foti E.. Dynamics of Gravity Currents in the Presence of Surface Waves[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(3)