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Non-Oberbeck-Boussinesq effects in Rayleigh-Benard convection of liquids

Horn, Susanne and Shishkina, Olga and Wagner, Claus (2014) Non-Oberbeck-Boussinesq effects in Rayleigh-Benard convection of liquids. In: Turbulence and Interactions Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 125. Springer Verlag, Berlin Heidelberg. pp. 99-105. ISBN 978-3-662-43488-8. ISSN 1612-2909

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Official URL: http://link.springer.com/chapter/10.1007/978-3-662-43489-5_12


The influence of temperature-dependent material properties on Rayleigh–Bénard convection is investigated in three different liquids, ranging from a very small Prandtl number for mercury with Pr = 0.0232, over a moderate one for water with Pr = 4.38, to a very large one for glycerol with Pr  = 2548. For this purpose, three-dimensional direct numerical simulations were performed in a cylindrical cell with a unity aspect ratio. Local quantities such as the viscous and thermal boundary layer thicknesses, the centre temperature and the wind velocity show a breakdown of the top-bottom symmetry. The intensity of this asymmetry strongly depends on the respective fluid.

Item URL in elib:https://elib.dlr.de/89953/
Document Type:Contribution to a Collection
Additional Information:DOI: 10.1007/978-3-662-43489-5_12, Online ISBN: 978-3-662-43489-5, Proceedings of the TI 2012 Conference
Title:Non-Oberbeck-Boussinesq effects in Rayleigh-Benard convection of liquids
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Horn, SusanneSusanne.Horn (at) ds.mpg.deUNSPECIFIED
Shishkina, OlgaOlga.Shishkina (at) ds.mpg.deUNSPECIFIED
Wagner, ClausClaus.Wagner (at) dlr.deUNSPECIFIED
Journal or Publication Title:Turbulence and Interactions
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 99-105
Deville, Michel O.Ecole Polytechnique Fédérale de Lausanne, Switzerland
Lê, Thien-HiepONERA Chatillon, France
Estivalezes, Jean-LucONERA Toulouse, France
Terracol, MarcONERA Chatillon, France
Gleize, VincentONERA Chatillon, France
Vincent, StéphaneENSCBP Pessac, France
Publisher:Springer Verlag, Berlin Heidelberg
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Keywords:Direct Numerical Simulation, Thermal Convection
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 - Next Generation Train III (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Micknaus, Ilka
Deposited On:18 Sep 2014 16:01
Last Modified:18 Sep 2014 16:01

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