Prediction of vortex shedding from a circular cylinder using a volumetric Lattice-Boltzmann boundary approach

Li, Y.; Zhang, R.; Shock, Richard; Chen, H.

doi:10.1140/epjst/e2009-01015-9

Cited by 33 publications

(16 citation statements)

References 27 publications

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“…In our work, the bounce back model is an extension of the volumetric boundary condition proposed by Chen et al in 1998 [21][22][23][24], which has been extensively studied for arbitrary geometry. The main features of this model are:…”

Section: Modified Wall Modelsmentioning

confidence: 99%

“…In addition to the correction of surface scattering described in [22], a hybrid solid wall boundary condition for the no slip wall is proposed here in order to further reduce numerical smearing for coarse resolution simulations. The distribution function of outgoing particles f out,α i is a combination of bounced back particles and the Maxwellian equilibrium particle distribution in accordance to viscosity values.…”

Section: Modified Wall Modelsmentioning

confidence: 99%

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Studies of accurate multi-component lattice Boltzmann models on benchmark cases required for engineering applications

Otomo¹,

Fan²,

Li³

et al. 2016

Journal of Computational Science

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We present recent developments in lattice Boltzmann modeling for multi-component flows, implemented on the platform of a general purpose, arbitrary geometry solver PowerFLOW. Presented benchmark cases demonstrate the method's accuracy and robustness necessary for handling real world engineering applications at practical resolution and computational cost. The key requirements for such approach are that the relevant physical properties and flow characteristics do not strongly depend on numerics. In particular, the strength of surface tension obtained using our new approach is independent of viscosity and resolution, while the spurious currents are significantly suppressed. Using a much improved surface wetting model, undesirable numerical artifacts including thin film and artificial droplet movement on inclined wall are significantly reduced.

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Section: Modified Wall Modelsmentioning

confidence: 99%

Section: Modified Wall Modelsmentioning

confidence: 99%

Studies of accurate multi-component lattice Boltzmann models on benchmark cases required for engineering applications

Otomo¹,

Fan²,

Li³

et al. 2016

Journal of Computational Science

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show abstract

“…To better achieve noslip wall boundary condition on arbitrary geometries, an extension of the volumetric boundary condition proposed by Chen et al in 1998 [12][13][14][15] is utilized. In this method, after boundary surfaces are discretized into linear surface facets in two dimension or triangular polygons in three dimension, the incoming and outgoing particles based on those facets or polygons are calculated in a volumetric way obeying the conservation laws.…”

Section: Introductionmentioning

confidence: 99%

Multi-component lattice Boltzmann models for accurate simulation of flows with wide viscosity variation

Otomo¹,

Crouse²,

Dressler³

et al. 2018

Computers & Fluids

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Multi-component lattice Boltzmann models operating in a wide range of fluid viscosity values are developed and examined. The algorithm is constructed with the goal to enable engineering applications without sacrificing simplicity and computational efficiency present in the original Shan-Chen model and D3Q19 lattice scheme. Boundary conditions for modeling friction and wettability effects are developed for discrete representation of surfaces within a volumetric approach, which results in accurate flow simulation in complex geometry. Numerical validation of our models includes comparison to previous studies and analytical solutions. The results are shown to be robust and accurate up to an extremely small kinematic viscosity value of 0.0017 lattice units and the extremely high ratio of components' kinematic viscosities of hundreds and up to a thousand. This improvement is significant compared to previous studies with Shan-Chen model [1,23,24], in which reasonable accuracy was kept only at the viscosity ratio up to 10 in the Poiseuille flow and the fingering simulation.

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“…Detailed modeling of the wall boundaries is also more natural [2]. Second, the LBM involves only cubic volume lattices that do not adapt to solid boundaries, so that the volume meshing can be made simple and automatic [3][4][5][6]. Third, the LBM generally has highly parallel computational performance since most of operations are performed locally.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, we utilize the volumetric boundary condition for arbitrary geometry proposed originally by Chen et al in 1998 [3][4][5][6]. In brief, the curved solid surface is discretized into piece-wise linear surface facets in two dimensions and triangular polygons in three dimensions.…”

Section: Introductionmentioning

confidence: 99%

Simulation of residual oil displacement in a sinusoidal channel with the lattice Boltzmann method

Otomo¹,

Fan²,

Hazlett³

et al. 2015

Comptes Rendus. Mécanique

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We simulate oil slug displacement in a sinusoidal channel in order to validate computational models and algorithms for multi-component flow. This case fits in the gap between fully realistic cases characterized by complicated geometry and academic cases with simplistic geometry. Our computational model is based on the lattice Boltzmann method and allows for variation of physical parameters such as wettability and viscosity. The effect of variation of model parameters is analyzed, in particular via comparison with analytical solutions. We discuss the requirements for accurate solution of the oil slug displacement problem.

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Prediction of vortex shedding from a circular cylinder using a volumetric Lattice-Boltzmann boundary approach

Cited by 33 publications

References 27 publications

Studies of accurate multi-component lattice Boltzmann models on benchmark cases required for engineering applications

Studies of accurate multi-component lattice Boltzmann models on benchmark cases required for engineering applications

Multi-component lattice Boltzmann models for accurate simulation of flows with wide viscosity variation

Simulation of residual oil displacement in a sinusoidal channel with the lattice Boltzmann method

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