In recent years the lattice Boltzmann method has achieved the reputation as a true alternative to the classical Navier-Stokes approach to simulate fluid behavior. Due to this development and the multitude of different Lattice Boltzmann solvers developed at our chair for different problems, the desire for a single Lattice Boltzmann implementation grew. This paper introduces the waLBerla project,...

A model for real-time generation of deep-water waves is suggested. It is based on a lattice-Boltzmann (LB) technique. Computation of wave dynamics and (ray-traced) rendering for a lattice of size 1024 can be carried out simultaneously on a single graphics card at 25 frames per second. In addition to the computational speed, the LB technique is seen to offer a simple and physically accurate meth...

A model for real-time generation of deep-water waves is suggested. It is based on a lattice-Boltzmann (LB) technique. Computation of wave dynamics and (ray-traced) rendering for a lattice of size 1024 can be carried out simultaneously on a single graphics card at 25 frames per second. In addition to the computational speed, the LB technique is seen to offer a simple and physically accurate meth...

The lattice Boltzmann method (LBM) was used to analyze two-dimensional (2D) non-Fourier heat conduction with temperature-dependent thermal conductivity. To this end, the evolution of wave-like temperature distributions in a 2D plate was obtained. The temperature distributions along certain parts of the plate, which was subjected to heat generation and constant thermal conductivity condit...

This study is devoted to developing a color-gradient lattice Boltzmann model capable of simulating thermocapillary flows with variable properties. To achieve the purpose, some modified work conducted. The equilibrium distribution function for density in developed model. scheme multiple-relaxation-time applied deal single-phase and perturbation collision operators enhance algorithm stability, si...

In this paper, the lattice vehicular model, which is in the form the lattice Boltzmann equation is directly derived from the Boltzmann equation. It is shown that the lattice Boltzmann equation is a special discretized form of the Boltzmann equation. A 3-bit approximation, which describe uncongested traffic flow, for the discretization of the Boltzmann equation in both time and phase space is di...

In recent decades, research utilizing numerical schemes dealing with fluid and nanoparticle interaction has been relatively intensive. It is known that CuO nanofluid a volume fraction of 0.1 special thermal boundary condition heat supplied to part the wall increases average Nusselt number for different aspect ratios ranges high Rayleigh numbers. Due its simplicity, stability, accuracy, efficien...

Recently the single relaxation time Lattice Boltzmann Method (hereinafter LBM) has considerably spread in Computational Hydraulics. Such a diffusion is motivated by the fact that the corresponding numerical algorithm is much simpler than the ones derived from “classical” hydraulic models, such as e.g. the Shallow Water (hereinafter SW) equations. The main drawback of the standard LBMbased model...

In this paper we consider the application of multiple-relaxation-time (MRT) lattice Boltzmann equation (LBE) for large-eddy simulation (LES) of turbulent flows. The implementation is discussed in the context of 19-velocity (D3Q19) MRT-LBE model in conjunction with the Smagorinsky subgrid closure model. The MRT-LBE-LES is then tested in the turbulent square jet flow case. We compare MRTLBE-LES r...