"Explosively growing" vortices of unstably stratified atmosphere

Abstract

©2016. American Geophysical Union.A new type of "explosively growing" vortex structure is investigated theoretically in the framework of ideal fluid hydrodynamics. It is shown that vortex structures may arise in convectively unstable atmospheric layers containing background vorticity. From an exact analytical vortex solution the vertical vorticity structure and toroidal speed are derived and analyzed. The assumption that vorticity is constant with height leads to a solution that grows explosively when the flow is inviscid. The results shown are in agreement with observations and laboratory experiments

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Item Type:	Article
Authors/Creators:	Onishchenko, O.G. Horton, W. Pokhotelov, O.A. Fedun, V. https://orcid.org/0000-0002-0893-7346
Copyright, Publisher and Additional Information:	©2016. The Authors.This is an open access article under theterms of the Creative CommonsAttribution-NonCommercial License,which permits use, distribution andreproduction in any medium, p rovidedthe original work is properly cited andis not used for commercial purposes
Dates:	Published: 25 October 2016 Published (online): 23 September 2016 Accepted: 19 September 2016
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Automatic Control and Systems Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	03 Nov 2016 15:50
Last Modified:	03 Nov 2016 15:50
Published Version:	https://doi.org/10.1002/2016JD025961
Status:	Published
Publisher:	American Geophysical Union
Refereed:	Yes
Identification Number:	10.1002/2016JD025961
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:106905

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"Explosively growing" vortices of unstably stratified atmosphere

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