Discrete effects on the source term for the lattice Boltzmann modelling of one-dimensional reaction–diffusion equations

G Silva - Computers & Fluids, 2023 - Elsevier
This work presents a detailed numerical analysis of one-dimensional, time-dependent
(linear) reaction–diffusion type equations modelled with the lattice Boltzmann method (LBM) …

Enhanced single-node lattice Boltzmann boundary condition for fluid flows

F Marson, Y Thorimbert, B Chopard, I Ginzburg, J Latt - Physical Review E, 2021 - APS
We propose a procedure to implement Dirichlet velocity boundary conditions for complex
shapes that use data from a single node only, in the context of the lattice Boltzmann method …

Steady-state two-relaxation-time lattice Boltzmann formulation for transport and flow, closed with the compact multi-reflection boundary and interface-conjugate …

I Ginzburg - Journal of Computational Science, 2021 - Elsevier
We introduce the steady-state two-relaxation-time (TRT) Lattice Boltzmann method. Owing to
the symmetry argument, the bulk system and the closure equations are all expressed in …

Mass-balance and locality versus accuracy with the new boundary and interface-conjugate approaches in advection-diffusion lattice Boltzmann method

I Ginzburg, G Silva - Physics of Fluids, 2021 - pubs.aip.org
We introduce two new approaches, called A-LSOB and N-MR, for boundary and interface-
conjugate conditions on flat or curved surface shapes in the advection-diffusion lattice …

Unified directional parabolic-accurate lattice Boltzmann boundary schemes for grid-rotated narrow gaps and curved walls in creeping and inertial fluid flows

I Ginzburg, G Silva, F Marson, B Chopard, J Latt - Physical Review E, 2023 - APS
The goal of this work is to advance the characteristics of existing lattice Boltzmann Dirichlet
velocity boundary schemes in terms of the accuracy, locality, stability, and mass …

Slip velocity boundary conditions for the lattice Boltzmann modeling of microchannel flows

G Silva, I Ginzburg - … Journal for Numerical Methods in Fluids, 2022 - Wiley Online Library
Slip flows in ducts are important in numerous engineering applications, most notably in
microchannel flows. Compared to the standard no‐slip Dirichlet condition, the case of slip …

Spurious interface and boundary behaviour beyond physical solutions in lattice Boltzmann schemes

I Ginzburg - Journal of Computational Physics, 2021 - Elsevier
The scalar field and the non-equilibrium solutions of the linear advection-diffusion d2Q9
Lattice Boltzmann (LBM) two-relaxation-times (TRT) scheme are constructed analytically …

Lattice-Boltzmann simulation of incompressible fluid flow past immersed bodies: models and boundary conditions

JL Krenchiglova, LOE dos Santos… - International Journal of …, 2023 - emerald.com
Purpose The main purpose of this paper was to investigate Lattice Boltzmann (LB) models
for the bulk incompressible flow past immersed bodies and to find the set of boundary …

Flow force calculation in the lattice Boltzmann method

S Kaushal, S Succi, S Ansumali - Physical Review E, 2023 - APS
We revisit force evaluation methodologies on rigid solid particles suspended in a viscous
fluid that is simulated via the lattice Boltzmann method (LBM). We point out the …

[HTML][HTML] Influence of surface properties on the dynamics of fluid flow

E Istenič, V Šajn, M Brojan - Physics of Fluids, 2022 - pubs.aip.org
In this paper, we study how the fluid flow near the surface of a monocrystalline body is
affected by the surface properties due to atom-surface scattering. We propose a toy model …