Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients

In this paper we use nonlinear simulations to show the generation of single-cell vortices, two-cell vortices and double vortices in a cylinder non-homogeneously heated from below in a rotating reference frame. For moderate rotation rates we show the transition from an axisymmetric one-cell vortex, c...

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Detalles Bibliográficos
Autores: Castaño Torrijos, Damián, Navarro Lérida, María Cruz, Herrero Sanz, Henar
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/40069
Acceso en línea:https://hdl.handle.net/10578/40069
Access Level:acceso abierto
Palabra clave:Fluid dynamics
Navier–Stokes equations
Spectral methods
Vortices
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spelling Double vortices and single-eyed vortices in a rotating cylinder under thermal gradientsCastaño Torrijos, DamiánNavarro Lérida, María CruzHerrero Sanz, HenarFluid dynamicsNavier–Stokes equationsSpectral methodsVorticesIn this paper we use nonlinear simulations to show the generation of single-cell vortices, two-cell vortices and double vortices in a cylinder non-homogeneously heated from below in a rotating reference frame. For moderate rotation rates we show the transition from an axisymmetric one-cell vortex, characterized by an updraft at the center of the cell, to an axisymmetric two-cell vortex, characterized by a central downdraft surrounded by updraft, i.e., a vortex that develops a central eye. This transition can be explained through a force balance analysis. When the thermal gradient increases beyond a certain threshold the axisymmetric single-eyed vortex loses the axisymmetry, the eye displaces from the center and tilts. For larger rotation rates the axisymmetric one-cell vortex bifurcates to a double vortex.Elsevier202520252017info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://hdl.handle.net/10578/40069reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/400692026-05-27T07:36:41Z
dc.title.none.fl_str_mv Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
title Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
spellingShingle Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
Castaño Torrijos, Damián
Fluid dynamics
Navier–Stokes equations
Spectral methods
Vortices
title_short Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
title_full Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
title_fullStr Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
title_full_unstemmed Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
title_sort Double vortices and single-eyed vortices in a rotating cylinder under thermal gradients
dc.creator.none.fl_str_mv Castaño Torrijos, Damián
Navarro Lérida, María Cruz
Herrero Sanz, Henar
author Castaño Torrijos, Damián
author_facet Castaño Torrijos, Damián
Navarro Lérida, María Cruz
Herrero Sanz, Henar
author_role author
author2 Navarro Lérida, María Cruz
Herrero Sanz, Henar
author2_role author
author
dc.subject.none.fl_str_mv Fluid dynamics
Navier–Stokes equations
Spectral methods
Vortices
topic Fluid dynamics
Navier–Stokes equations
Spectral methods
Vortices
description In this paper we use nonlinear simulations to show the generation of single-cell vortices, two-cell vortices and double vortices in a cylinder non-homogeneously heated from below in a rotating reference frame. For moderate rotation rates we show the transition from an axisymmetric one-cell vortex, characterized by an updraft at the center of the cell, to an axisymmetric two-cell vortex, characterized by a central downdraft surrounded by updraft, i.e., a vortex that develops a central eye. This transition can be explained through a force balance analysis. When the thermal gradient increases beyond a certain threshold the axisymmetric single-eyed vortex loses the axisymmetry, the eye displaces from the center and tilts. For larger rotation rates the axisymmetric one-cell vortex bifurcates to a double vortex.
publishDate 2017
dc.date.none.fl_str_mv 2017
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10578/40069
url https://hdl.handle.net/10578/40069
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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