LBM study of aggregation of monosized spherical particles in homogeneous isotropic turbulence

Wang, Guichao; Wan, Dongdong; Peng, Cheng; Liu, Ke; Wang, Lian‐Ping

doi:10.1016/j.ces.2019.03.004

Cited by 22 publications

(6 citation statements)

References 44 publications

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“…It may not hold for particles that are considerably larger than the Kolmogorov scale. In the latter case, particle-resolved simulations would be needed to precisely calculate the flow around and forces on particles (Ernst, Dietzel & Sommerfeld 2013; Liu & Wu 2019; Peng, Ayala & Wang 2019; Wang et al 2019).…”

Section: Resultsmentioning

confidence: 99%

Collision-induced breakage of agglomerates in homogenous isotropic turbulence laden with adhesive particles

Chen

2020

J. Fluid Mech.

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Section: Resultsmentioning

confidence: 99%

Collision-induced breakage of agglomerates in homogenous isotropic turbulence laden with adhesive particles

Chen

2020

J. Fluid Mech.

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“…The LBM is a multi-scale method, and its advantage is that the convection term is linear. Therefore, the LBM is applied to numerical calculation of various fluids, such as microscale flow, [6,7] turbulence, [8,9] multiphase flows, [10,11] blood flow, [12] and heat transfer. [13,14] The research object of this paper is compressible fluid.…”

Section: Introductionmentioning

confidence: 99%

Application of shifted lattice model to 3D compressible lattice Boltzmann method

Hao-Yu

Jin

et al. 2023

Chinese Phys. B

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In this paper, an additional potential energy distribution function is introduced on the basis of previous D3Q25 model, and the equilibrium distribution function of D3Q25 is obtained by spherical function. A novel 3D shifted lattice model is proposed, based on this finding, the shifted lattice model is introduced to D3Q25. Under the finite volume scheme, several typical compressible calculation examples are used to verify whether the numerical stability of the D3Q25 model can be improved by adding the shifted lattice model. The simulation results show that the numerical stability is improved by adding the shifted lattice model.

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“…There are more complex mechanical behaviors in the cluster during the settlement process (Guazzelli and Pouliquen 2018;Lobry, Lemaire et al, 2019;Papadopoulou, Gillissen et al, 2020), which are generally considered to be caused by two aspects. On one hand, it is affected by external effects such as inertia force and viscous force; on the other hand, it is affected by internal flow field and interaction, contact, and collision of particles (Zenit and Feng 2018;Wang, Wan et al, 2019). To facilitate the analysis of the internal mechanical behavior of clusters during the settlement process, it is assumed that the particles are nonviscous materials.…”

Section: Introductionmentioning

confidence: 99%

Study on particle cluster dynamics behavior in settling and the influence by fiber barrier

Bai

et al. 2022

Front. Mater.

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The dispersion of particle clusters is relevant to a high concentration carrying fluid such as fracturing and drilling fluid, and the fiber-containing fluid could improve the carrying performance of particles. In the present study, the settling dynamics behavior of clusters is investigated using the CFD-DEM method. The numerical simulation method employed was able to accurately predict the deformation and velocity change rules, which express the cluster settling dynamics behavior. The velocity variation of particles is affected by hindrance and contact inside the cluster, and the velocity contrast leads to particle leakage and cluster deformation. The cluster will have regular shape changes and break up in the settlement process under gravity and fluid drag force. According to the sensitivity parameter analysis, the deformation of clusters is mainly affected by the fluid rheological properties. Different from glycerol, the settling cluster in viscoelastic HPG has a more complex dynamic behavior and a better fiber barrier effect. The fiber barrier between particles in the cluster can be regarded as a weakly constrained fiber grid structure. Due to the contact force, fiber grid structure formed in the cluster could effectively restrain the shape change and break up trend in the settlement process. The design also considers the influence of fiber and HPG concentration, and we analyze the settling velocity of the mixed-fiber cluster. Overall, the research on the cluster settling dynamics behavior is helpful in analyzing the effect of fiber-containing fluid in the carrying performance of particles.

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LBM study of aggregation of monosized spherical particles in homogeneous isotropic turbulence

Cited by 22 publications

References 44 publications

Collision-induced breakage of agglomerates in homogenous isotropic turbulence laden with adhesive particles

Collision-induced breakage of agglomerates in homogenous isotropic turbulence laden with adhesive particles

Application of shifted lattice model to 3D compressible lattice Boltzmann method

Study on particle cluster dynamics behavior in settling and the influence by fiber barrier

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