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Validation of a dynamically adaptive lattice Boltzmann method for 2D thermal convection simulations

Feldhusen, Kai and Deitderding, Ralf and Wagner, Claus (2015) Validation of a dynamically adaptive lattice Boltzmann method for 2D thermal convection simulations. 2nd International Conference of Mathematics and Computers in Sciences And Industry - MCSI 15, 17. - 19. Aug. 2015, Sliema, Malta.

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Official URL: http://mcsi-conf.org/

Abstract

Utilizing the Boussinesq approximation, a double-population thermal lattice Boltzmann method (LBM) for forced and natural convection in two space dimensions is developed and validated. A block-structured dynamic adaptive mesh refinement procedure tailored for LBM is applied to enable computationally efficient simulations of high Rayleigh number configurations which are characterized by a large scale disparity in boundary layers and free stream flow. As test cases, the analytically accessible problem of a two-dimensional (2D) forced convection flow through two porous plates and the non-Cartesian configuration of a heated rotating cylinder are considered. The effectiveness of the overall approach is demonstrated for the 2D natural convection benchmark of a cavity with differentially heated walls at Rayleigh numbers from 10^3 up to 10^8.

Item URL in elib:https://elib.dlr.de/98008/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Proceedings will be published by IEEE Computer Society's Conference Publishing Services (CPS), 5907011
Title:Validation of a dynamically adaptive lattice Boltzmann method for 2D thermal convection simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Feldhusen, Kaikai.feldhusen (at) dlr.deUNSPECIFIED
Deitderding, Ralfralf.deiterding (at) dlr.deUNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:Conference Proceedings
Status:Published
Keywords:Lattice Boltzmann Method, Adaptive mesh refinement, thermal convective fluid flow
Event Title:2nd International Conference of Mathematics and Computers in Sciences And Industry - MCSI 15
Event Location:Sliema, Malta
Event Type:international Conference
Event Dates:17. - 19. Aug. 2015
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:07 Dec 2015 16:23
Last Modified:07 Dec 2015 16:23

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