Vortices in time-periodic shear flow

G.J.F. Heijst, van

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

Vortices emerging in geophysical turbulence may experience deformations due to the non-uniform ambient flow induced by neighbouring vortices. As a first approximation this ambient flow is modelled by a linear shear flow. It is well known from previous studies that the vortex may be (partially) destructed through removal of weak vorticity at the vortex edge – a process referred to as ‘stripping’. While most previous studies considered a stationary external shear flow, we have examined the behaviour of the vortex embedded in a linear shear flow whose strength changes harmonically in time. Aspects of the vortex dynamics and the (chaotic) transport of tracers have been studied by both laboratory experiments and numerical flow simulations.
Original languageEnglish
Title of host publicationProceedings of the European Geosciences Union General Assembly (EGU 2005), 24-29 April 2005, Vienna, Austria
Place of PublicationVienna, Austria
PagesEGU05-A-06872-
Publication statusPublished - 2005
Event2005 European Geosciences Union General Assembly - Vienna, Austria
Duration: 24 Apr 200529 Apr 2005
https://meetings.copernicus.org/egu2005/

Conference

Conference2005 European Geosciences Union General Assembly
CountryAustria
CityVienna
Period24/04/0529/04/05
Internet address

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