Results 11 to 20 of about 107,840 (189)

A Multiple-Grid Lattice Boltzmann Method for Natural Convection under Low and High Prandtl Numbers

open access: yesFluids, 2021
A multi-distribution lattice Boltzmann Bhatnagar–Gross–Krook (BGK) model with a multiple-grid lattice Boltzmann (MGLB) model is proposed to efficiently simulate natural convection over a wide range of Prandtl numbers. In this method, different grid sizes
Seyed Amin Nabavizadeh   +3 more
doaj   +1 more source

Low Dissipative Entropic Lattice Boltzmann Method

open access: yesMathematics, 2022
In the entropic lattice Boltzmann approach, the stability properties are governed by the parameter α, which in turn affects the viscosity of a flow. The variation of this parameter allows one to guarantee the fulfillment of the discrete H-theorem for all
Oleg Ilyin
doaj   +1 more source

Lattice Boltzmann model in general curvilinear coordinates applied to exactly solvable 2D flow problems

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
Numerical simulation results of basic exactly solvable fluid flows using the previously proposed by H. Chen Lattice Boltzmann Method (LBM) formulated on a general curvilinear coordinate system are presented.
Alexei Chekhlov   +3 more
doaj   +1 more source

Hybrid Lattice Boltzmann Model for Nonlinear Diffusion and Image Denoising

open access: yesMathematics, 2023
In the present paper, a novel approach for image denoising based on the numerical solution to the nonlinear diffusion equation is proposed. The Perona–Malik-type equation is solved by employing a hybrid lattice Boltzmann model with five discrete ...
Oleg Ilyin
doaj   +1 more source

Quasi-equilibrium lattice Boltzmann method [PDF]

open access: yesThe European Physical Journal B, 2007
ISSN:1434 ...
Ansumali, S   +5 more
openaire   +5 more sources

Initial and Boundary Conditions for the Lattice Boltzmann Method [PDF]

open access: yes, 1993
A new approach of implementing initial and boundary conditions for the lattice Boltzmann method is presented. The new approach is based on an extended collision operator that uses the gradients of the fluid velocity.
Skordos, P. A.
core   +1 more source

Simulation of three-dimensional homogeneous isotropic turbulence using the moment-based lattice Boltzmann method and LES-lattice Boltzmann method

open access: yesJournal of Fluid Science and Technology, 2014
Three-dimensional homogeneous isotropic turbulence simulations are conducted using moment-based lattice Boltzmann method and the large-eddy simulation based lattice Boltzmann method.
Muhammad IZHAM   +2 more
doaj   +1 more source

Modification of the lattice Boltzmann method for the computations of viscid incompressible fluid flows [PDF]

open access: yesКомпьютерные исследования и моделирование, 2014
Modification of the lattice Boltzmann method for computation of viscous incompressible fluid flows is proposed. The method is based on the splitting of differential operator in Navier-Stokes equation and on the idea of instantaneous Maxwellisation of ...
Gerasim Vladimirovich Krivovichev
doaj   +1 more source

Toward a Lattice Boltzmann Method for Solids—Application to Static Equilibrium of Isotropic Materials

open access: yesApplied Sciences, 2022
This work presents a novel method for simulating the behavior of solid objects with the Lattice Boltzmann Method (LBM). To introduce and validate our proposed framework, comparative studies are performed for computing the static equilibrium of isotropic ...
Tristan Maquart   +3 more
doaj   +1 more source

Modeling of natural convection by lattice Boltzmann in a partially heated cavity [PDF]

open access: yesE3S Web of Conferences, 2023
This study introduces the lattice Boltzmann method for modeling natural convection in a partially heated square cavity filled with air for varying Rayleigh numbers. A temperature gradient affects the vertical walls, whereas the other walls are treated as
Agoujil Fouad   +4 more
doaj   +1 more source

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