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.
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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/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
Title: | Vortex Identification in Rotating Turbulent RAYLEIGH–BÉNARD Convection of Water | ||||||||||||
Authors: |
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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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