Comparison between isothermal collision-streaming and finite-difference lattice Boltzmann models

G. Negro, S. Busuioc (), V. E. Ambruş (), G. Gonnella (), A. Lamura () and V. Sofonea ()
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G. Negro: Dipartimento di Fisica, Università degli Studi di Bari and INFN, Sezione di Bari, via Amendola 173, Bari I-70126, Italy
S. Busuioc: Department of Physics, West University of Timişoara, Bd. Vasile Pârvan 4, 300223 Timişoara, Romania
V. E. Ambruş: Department of Physics, West University of Timişoara, Bd. Vasile Pârvan 4, 300223 Timişoara, Romania
G. Gonnella: Dipartimento di Fisica, Università degli Studi di Bari and INFN, Sezione di Bari, via Amendola 173, Bari I-70126, Italy
A. Lamura: Istituto Applicazioni Calcolo, CNR, Via Amendola 122/D, I-70126 Bari, Italy
V. Sofonea: Center for Fundamental and Advanced Technical Research, Romanian Academy Bd. Mihai Viteazul 24, 300223 Timişoara, Romania

International Journal of Modern Physics C (IJMPC), 2019, vol. 30, issue 10, 1-14

Abstract: We present here a comparison between collision-streaming and finite-difference lattice Boltzmann (LB) models. This study provides a derivation of useful formulae which help one to properly compare the simulation results obtained with both LB models. We consider three physical problems: the shock wave propagation, the damping of shear waves, and the decay of Taylor–Green vortices, often used as benchmark tests. Despite the different mathematical and computational complexity of the two methods, we show how the physical results can be related to obtain relevant quantities.

Keywords: Lattice Boltzmann models; finite-difference; collision-streaming; viscosity (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (1)

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DOI: 10.1142/S0129183119410055

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