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

Validation of a dynamically adaptive lattice Boltzmann method for 2D thermal convection simulations
Validation of a dynamically adaptive lattice Boltzmann method for 2D thermal convection simulations
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.
199-206
Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
Feldhusen, Kai
3f323d13-2cdf-4c52-b112-5538a712d4c5
Wagner, Claus
bb61da3c-93e6-4f7d-b47d-0e52dba616c5
Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
Feldhusen, Kai
3f323d13-2cdf-4c52-b112-5538a712d4c5
Wagner, Claus
bb61da3c-93e6-4f7d-b47d-0e52dba616c5

Deiterding, Ralf, Feldhusen, Kai and Wagner, Claus (2016) Validation of a dynamically adaptive lattice Boltzmann method for 2D thermal convection simulations. 2015 Second International Conference on Mathematics and Computers in Sciences and in Industry (MCSI), Sliema, Malta. 17 Aug 2015. pp. 199-206 . (doi:10.1109/MCSI.2015.60).

Record type: Conference or Workshop Item (Paper)

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.

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More information

Published date: April 2016
Venue - Dates: 2015 Second International Conference on Mathematics and Computers in Sciences and in Industry (MCSI), Sliema, Malta, 2015-08-17 - 2015-08-17
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 391561
URI: http://eprints.soton.ac.uk/id/eprint/391561
PURE UUID: 46764546-7fb3-4957-91f1-653f78639c7a
ORCID for Ralf Deiterding: ORCID iD orcid.org/0000-0003-4776-8183

Catalogue record

Date deposited: 21 Apr 2016 14:12
Last modified: 15 Mar 2024 03:52

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Contributors

Author: Ralf Deiterding ORCID iD
Author: Kai Feldhusen
Author: Claus Wagner

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