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Vortex Identification in Rotating Turbulent RAYLEIGH–BÉNARD Convection of Water

Horn, Susanne and Shishkina, Olga and Wagner, Claus (2013) Vortex Identification in Rotating Turbulent RAYLEIGH–BÉNARD Convection of Water. 14TH EUROPEAN TURBULENCE CONFERENCE, 01. - 04. Sept. 2013, Lyon, France.

Full text not available from this repository.

Official URL: http://etc14.ens-lyon.fr/

Abstract

We perform Direct Numerical Simulations of rotating turbulent Rayleigh–Bénard convection in water, assuming that the material properties are either constant (Oberbeck–Boussinesq conditions) or vary with temperature (non-Oberbeck–Boussinesq conditions). One of the most remarkable features of rotating Rayleigh–Bénard convection in is the generation of columnar vortex structures and their size is known to depend on the viscosity and diffusivity. We use various criteria to identify these vortices and analyse, in which way their extracted number, size and shape depends on the temperature-dependence of the material properties, the Rossby number and also the used identification criterion.

Item URL in elib:https://elib.dlr.de/87210/
Document Type:Conference or Workshop Item (Speech)
Title:Vortex Identification in Rotating Turbulent RAYLEIGH–BÉNARD Convection of Water
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Horn, SusanneSusanne.Horn (at) dlr.deUNSPECIFIED
Shishkina, OlgaOlga.Shishkina (at) dlr.deUNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Date:2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-2
Series Name:Conference Proceedings on USB-Stick
Status:Published
Keywords:Rayleigh–Bénard convection, non-Oberbeck–Boussinesq effects, DNS
Event Title:14TH EUROPEAN TURBULENCE CONFERENCE
Event Location:Lyon, France
Event Type:international Conference
Event Dates:01. - 04. Sept. 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Project Next Generation Train II (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Micknaus, Ilka
Deposited On:08 Jan 2014 10:10
Last Modified:08 May 2014 23:20

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