Large eddy simulation of turbulent open duct flow using a lattice Boltzmann approach

Fernandino, María; Beronov, Kamen N.; Ytrehus, Tor

doi:10.1016/j.matcom.2008.07.001

Cited by 34 publications

(20 citation statements)

References 21 publications

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“…The large-eddy (LES) modification of LBM (Fernandino et al 2009) assumes that the viscosity may be expressed as a sum of a molecular and turbulent component:…”

Section: Lattice Boltzmann Based Large Eddy Simulation Algorithmmentioning

confidence: 99%

“…These modifications assume incorporation of the various turbulence closure schemes. The most promising of the modified LBM methods, by reason of low complexity and short time of computations, are the large eddy based lattice-Boltzmann (LELB) simulation methods (Mayer et al 2007, Fernandino et al 2009). This method has been also applied in the modeling of a turbulent flow through emergent vegetation (Jiménez-Hornero et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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A large eddy based lattice-Boltzmann simulation of velocity distribution in an open channel flow with rigid and flexible vegetation

Gac

2013

Acta Geophys.

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A b s t r a c tThe large eddy simulation method, based on a lattice-Boltzmann algorithm, was used to compute the vertical velocity profile in an open channel flow with submerged and emerged vegetation. The numerical method is characterized by the relatively short time of computation and low complexity. On the other hand, it allows a more realistic description of the vegetation properties relative to the methods commonly used in 1-D numerical models. For the proper conditions, the method developed in this work gives results similar to other numerical methods. These results are also in good agreement with the experimental data presented in other papers.

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“…The large-eddy (LES) modification of LBM (Fernandino et al 2009) assumes that the viscosity may be expressed as a sum of a molecular and turbulent component:…”

Section: Lattice Boltzmann Based Large Eddy Simulation Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A large eddy based lattice-Boltzmann simulation of velocity distribution in an open channel flow with rigid and flexible vegetation

Gac

2013

Acta Geophys.

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“…Due to these advantages, the use of LES model for simulating indoor air ows has markedly increased in the last decade [13][14][15]. The LES model in framework of LBM was also used to investigate turbulent ows for di erent applications [16,17]. The major di culty with using LES for simulating the indoor air ow is that resolving the problem of near-wall ows requires a very ne grid to capture large eddies, which increase the computation cost signi cantly [18].…”

Section: Introductionmentioning

confidence: 99%

Investigation of particle deposition and dispersion using Hybrid LES/RANS model based on Lattice Boltzmann method

et al. 2018

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Abstract. In this study, a new hybrid RANS/LES turbulence model within the framework of the Multi Relaxation Time (MRT) Lattice Boltzmann Method (LBM) was used to study particle dispersion and deposition in a room. For the hybrid RANS/LES method, the nearwall region was simulated by the RANS model, while the rest of the domain was analyzed using the LES model within the framework of the LBM. In the near-wall layer where RANS was used, the k " turbulence model was employed. To simulate the particle dispersion and deposition in the room, particles with diameters of 10 nm to 10 m were investigated. The simulated results for particle dispersion and deposition showed that the predictions of the present hybrid method were quite similar to those of earlier LES-LBM. In addition, the predictions of the hybrid model for the particle deposition and dispersion were closer to LES simulation results, as compared to those of the k " model.

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“…Furthermore, an investigation in the third direction made it possible to quantify 3D turbulent kinetic energy and the secondary three-dimensional effects. (Fernandino et al, 2009) investigated a large eddy simulation of turbulent open duct flow performed using the LBM in conjunction with the Smagorinsky sub-grid scale model (SGS), and found that the LBM simulation results were in good qualitative agreement with experiments. (Chen, 2009) proposed a novel and simple large eddy-based LB model to simulate two-dimensional turbulence.…”

Section: Introductionmentioning

confidence: 99%

Lattice Boltzmann Method for Natural Convection Flows in a Full Scale Cavity Heated from Below

Abouricha¹,

Alami²,

Kriraa³

et al. 2017

AJHMT

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In this work, we use the lattice Boltzmann method (LBM) to simulate High Rayleigh number natural convection flows in a cavity filled with air and heated from below. One of the vertical walls has a cold portion, while the other walls are adiabatic. This cavity simulates a living space with under-floor heating and fitted with a glass door (single glass). Computations are made in two dimensions for high values of Rayleigh number. The model uses the double populations approach to simulate hydrodynamic and thermal fields. The traditional LBM with a non-uniform grid has high grid requirements at higher Rayleigh number values. The results are presented in terms of streamlines and isotherms. Variation of the local Nusselt number on the walls is shown and discussed. Global heat transfer has been studied in terms of average Nusselt number which is correlated with Rayleigh number. Dimensionless profiles of temperature and velocity along the vertical and horizontal centerline are illustrated.

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Large eddy simulation of turbulent open duct flow using a lattice Boltzmann approach

Cited by 34 publications

References 21 publications

A large eddy based lattice-Boltzmann simulation of velocity distribution in an open channel flow with rigid and flexible vegetation

A large eddy based lattice-Boltzmann simulation of velocity distribution in an open channel flow with rigid and flexible vegetation

Investigation of particle deposition and dispersion using Hybrid LES/RANS model based on Lattice Boltzmann method

Lattice Boltzmann Method for Natural Convection Flows in a Full Scale Cavity Heated from Below

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