Numerical investigation on the role of discrete element method in combined LBM–IBM–DEM modeling

Zhang, Hao; Tan, Yuanqiang; Shu, Shi; Niu, Xiaodong; Trias, F. X.; Yang, Dongmin; Li, Hao; Sheng, Yong

doi:10.1016/j.compfluid.2014.01.032

Cited by 84 publications

(45 citation statements)

References 47 publications

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“…The two heads do not rise vertically any longer but towards the upper corners of the cavity. This phenomenon is not observed in the simulation without heat transfer before [36,5,9,13]. It seems that the thermal buoyancy totally breaks the original rule and introduces more intensive fluid-particle interactions.…”

Section: Sedimentation Of Two-dimensional Isothermal Particles In Fluidmentioning

confidence: 85%

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Particulate Immersed Boundary Method for complex fluid–particle interaction problems with heat transfer

Zhang

Yuan

Trias

et al. 2016

Computers & Mathematics with Applications

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Sheng. PIBM: Particulate immersed boundary method for fluid-particle interaction problems. Powder Technology. 272(2015), 1-13.], a particulate immersed boundary method (PIBM) for simulating fluid-particle multiphase flow was proposed and assessed in both two-and three-dimensional applications.In this study, the PIBM was extended to solve thermal interaction problems between spherical particles and fluid. The Lattice Boltzmann Method (LBM) was adopted to solve the fluid flow and temperature fields, the PIBM was responsible for the no-slip velocity and temperature boundary conditions at the particle surface, and the kinematics and trajectory of the solid particles were evaluated by the Discrete Element Method (DEM). Four case studies were implemented to demonstrate the capability of the current coupling scheme. Firstly, numerical simulation of natural convection in a two-dimensional square cavity with an isothermal concentric annulus was carried out for verification purpose.The current results were found to have good agreements with previous references. Then, sedimentation of two-and three-dimensional isothermal particles in fluid was numerically studied, respectively. The instantaneous temperature * Corresponding author Email addresses: hao@cttc.upc.edu (Hao Zhang), cttc@cttc.upc.edu (Assensi Oliva) February 5, 2015 distribution in the cavity was captured. The effect of the thermal buoyancy on particle behaviors was discussed. Finally, sedimentation of three-dimensional thermosensitive particles in fluid was numerically investigated. Our results revealed that the LBM-PIBM-DEM is a promising scheme for the solution of complex fluid-particle interaction problems with heat transfer. Preprint submitted to Elsevier

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Section: Sedimentation Of Two-dimensional Isothermal Particles In Fluidmentioning

confidence: 85%

“…In this section, the equation systems of the D3Q15 model are presented. For the two-dimensional ones, the readers are referred to our previous study [9]. The three-dimensional spatial distribution of the fluid velocities is shown in Figure 1 which can be expressed by…”

Section: Lattice Boltzmann Model With Single-relaxation Time Collisionmentioning

confidence: 99%

Particulate Immersed Boundary Method for complex fluid–particle interaction problems with heat transfer

Zhang

Yuan

Trias

et al. 2016

Computers & Mathematics with Applications

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“…In this paper, the instantaneous distribution of the particles and pressure on the truck walls during emergency brake process was numerically studied using DEM in which the normal force and the tangential force were calculated based on the theories of Hertz and MindlinDecesiesicz, respectively. The study of Zhang et al [17,18] showed that the numerical results based on those two theories have a better agreement with the actual situation than using an artificial linear stiffness. Moreover, since the particulate materials are always exposed to the open air during the transportation, therefore, certain liquid may exist in particle system.…”

Section: Introductionmentioning

confidence: 93%

Numerical Simulation of the Emergency Brake Process in Granular Material Transportation Using DEM: Effect of the Liquid Bridge

Zhang

Yue

et al. 2015

Procedia Engineering

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A numerical simulation of the emergency brake process in granular material transportation was carried out using the Discrete Element Method (DEM). The interaction laws between the particles were based on the contact mechanics in which the normal force was calculated by the Hertz contact law and the incremental tangential force was evaluated by the Mindlin-Deresiewicz theory. Moreover, the liquid bridge force was considered in the wet particle simulation and the effect was especially discussed. Two strategies including the spatial segmentation and reconstruction of orthogonal grids were introduced to analyze the interaction force on the truck during the braking and backfilling processes. It is found that the particles concentrated in front of the truck in the brake process with a slope forming on the upper surface of the agglomerating particles. The liquid bridge force can significantly influence on the particle and force distribution trends. When the liquid bridge force was considered, the particles moved more slowly, the slope was gentler and the force on both the bottom and front wall of the truck was higher. The findings in this study reveal that the liquid bridge force plays an important role on the instantaneous distribution of the particles and pressure on the truck walls and thus cannot be ignored in the simulation.

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“…Among the most commonly used interaction laws are the 'Hard' contact law based on conservation of momentum [33], linear law [34,35] and the nonlinear law [36][37][38] as adopted in this study. The calculation of interaction force is not necessary in the 'Hard' contact models.…”

Section: Governing Equationsmentioning

confidence: 99%

A GPU-based discrete element modeling code and its application in die filling

Yue

Zhang

et al. 2015

Computers & Fluids

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Numerical investigation on the role of discrete element method in combined LBM–IBM–DEM modeling

Cited by 84 publications

References 47 publications

Particulate Immersed Boundary Method for complex fluid–particle interaction problems with heat transfer

Particulate Immersed Boundary Method for complex fluid–particle interaction problems with heat transfer

Numerical Simulation of the Emergency Brake Process in Granular Material Transportation Using DEM: Effect of the Liquid Bridge

A GPU-based discrete element modeling code and its application in die filling

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