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Highly Resolved Simulations of Turbulent Mixed Convection in a Vertical Plane Channel

Kath, Christian and Wagner, Claus (2016) Highly Resolved Simulations of Turbulent Mixed Convection in a Vertical Plane Channel. In: New Results in Numerical and Experimental Fluid Mechanics X Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 132. Springer International Publishing Switzerland 2016. pp. 515-524. doi: 10.1007/978-3-319-27279-5_45. ISBN 978-3-319-27278-8. ISSN 1612-2909.

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Official URL: http://link.springer.com/book/10.1007/978-3-319-27279-5/page/2


Direct Numerical Simulations (DNS) and Large Eddy Simulations (LES) of turbulent mixed convection in a vertical plane channel have been performed with the open source finite volume code OpenFOAM. Since the agreement of the results of LES obtained with second order accurate central differences in space, implicit time Integration and the PISO method for the pressure-velocity coupling to data in the literature was rather poor, additional DNS were performed to identify sources of discretization errors in OpenFOAM. The comparison revealed errors associated not only with the used eddy viscosity an diffusivity subgrid scale turbulence models used for LES but also with the provided default discretization settings. Changing the latter, it turned out that applying an explicit Leapfrog time integration scheme together with a projection method for the velocity-pressure coulping and a fourth order accurate discretization considerably improved the DNS results. Thus, this combination is also recommended for future LES studies.

Item URL in elib:https://elib.dlr.de/92715/
Document Type:Contribution to a Collection
Additional Information:Online ISBN: 978-3-319-27279-5
Title:Highly Resolved Simulations of Turbulent Mixed Convection in a Vertical Plane Channel
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Date:January 2016
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics X
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 515-524
EditorsEmailEditor's ORCID iD
Dillmann, AndreasDLR GöttingenUNSPECIFIED
Heller, GerdAirbus Deutschland, Bremen, GermanyUNSPECIFIED
Krämer, EwaldUNI StuttgartUNSPECIFIED
Wagner, ClausDLR GöttingenUNSPECIFIED
Breitsamter, ChristianTU MünchenUNSPECIFIED
Publisher:Springer International Publishing Switzerland 2016
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Keywords:DNS, LES, Turbulent mixed convection, Leapfrog time step, Projection method mixed convection, vertical plane channel, Leapfrog, projection method
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: Bachmann, Barbara
Deposited On:11 Jul 2016 09:24
Last Modified:27 Jan 2021 11:48

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