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A Non-uniform Staggered Cartesian Grid approach for Lattice-Boltzmann method
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz).
2015 (English)In: Procedia Computer Science, Elsevier, 2015, no 1, 296-305 p.Conference paper (Refereed)
Abstract [en]

We propose a numerical approach based on the Lattice-Boltzmann method (LBM) for dealing with mesh refinement of Non-uniform Staggered Cartesian Grid. We explain, in detail, the strategy for mapping LBM over such geometries. The main benefit of this approach, compared to others, consists of solving all fluid units only once per time-step, and also reducing considerably the complexity of the communication and memory management between different refined levels. Also, it exhibits a better matching for parallel processors. To validate our method, we analyze several standard test scenarios, reaching satisfactory results with respect to other stateof-the-art methods. The performance evaluation proves that our approach not only exhibits a simpler and efficient scheme for dealing with mesh refinement, but also fast resolution, even in those scenarios where our approach needs to use a higher number of fluid units.

Place, publisher, year, edition, pages
Elsevier, 2015. no 1, 296-305 p.
Keyword [en]
Lattice-Boltzmann method, Mesh refinement, Multicore, Parallel algorithms, Kinetic theory, Memory management units, Mesh generation, Numerical methods, Efficient schemes, Lattice Boltzmann method, Lattice boltzmann methods (LBM), Multi core, Numerical approaches, Parallel processor, State-of-the-art methods, Computational fluid dynamics
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-176109DOI: 10.1016/j.procs.2015.05.245ScopusID: 2-s2.0-84939212648OAI: diva2:874760
International Conference on Computational Science, ICCS 2002, 21 April - 24 April 2002, Amsterdam

QC 20151127

Available from: 2015-11-27 Created: 2015-11-02 Last updated: 2015-11-27Bibliographically approved

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Jansson, Johan
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ReferencesLink to record
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