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Application of the Lattice Boltzmann Method for Particulate Flows

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Statistical Physics".

Deadline for manuscript submissions: closed (15 December 2022) | Viewed by 1697

Special Issue Editors

School of Engineering, Newcastle University, Newcastle NE1 7RU, UK
Interests: hybrid LES/RANS; turbulence; CFD; wall-modelled LES; multiphase flows; Lattice Boltzmann method
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Guest Editor
Departamento de Física and Instituto de Computación Científica Avanzada (ICCAEx), Universidad de Extremadura, E-06006 Badajoz, Spain
Interests: kinetic theory; nonequilibrium statistical mechanics; granular fluids; gas-solid flows

Special Issue Information

Dear Colleagues,

Particulate flows are present in a wide range of natural processes and industrial applications. In order to better understand the underlying physics of these phenomena, various aspects such as fluid flow, particle translation and rotation, and fluid–particle interactions should be considered. Among several approaches, the lattice Boltzmann method (LBM) has emerged as a reliable mesoscopic technique to handle these aspects. Its advantages over classical macroscopic methods (based on the Navier–Stokes equations) have sparked enormous attention in the simulation of multiphase flows in recent years.

The application of LBM to particle-laden flows, however, can be traced back to three decades ago. This Special Issue will be an ideal opportunity to review and gather the latest progress in this fascinating interdisciplinary topic. Numerical studies on the following and other subjects related to LBM simulation of particulate flows are therefore warmly encouraged:

  • Isothermal and non-isothermal simulations;
  • Laminar and turbulent flows;
  • Isotropic and anisotropic particles;
  • Industrial simulations;
  • Entropic LB methods;
  • DNS, LES, and RAS;
  • Comparison with classical CFD;
  • Improvement of fluid–particle interaction modeling approaches;
  • Numerical stability, accuracy, and speed;
  • Immersed boundary and bounce-back methods;
  • Curved boundary treatment;
  • Optimization and machine learning techniques.

Dr. Amir E. Fard
Prof. Dr. Vicente Garzó
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Entropy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • lattice Boltzmann method
  • particulate flows
  • particle–fluid interactions
  • anisotropic particles
  • numerical simulations

Published Papers (1 paper)

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Research

16 pages, 8302 KiB  
Article
Swimming Mode of Two Interacting Squirmers under Gravity in a Narrow Vertical Channel
by Geng Guan, Jianzhong Lin and Deming Nie
Entropy 2022, 24(11), 1564; https://doi.org/10.3390/e24111564 - 30 Oct 2022
Cited by 5 | Viewed by 1225
Abstract
The swimming mode of two interacting squirmers under gravity in a narrow vertical channel is simulated numerically using the lattice Boltzmann method (LBM) in the range of self-propelling strength 0.1 ≤ α ≤ 1.1 and swimming type −5 ≤ β ≤ 5. The [...] Read more.
The swimming mode of two interacting squirmers under gravity in a narrow vertical channel is simulated numerically using the lattice Boltzmann method (LBM) in the range of self-propelling strength 0.1 ≤ α ≤ 1.1 and swimming type −5 ≤ β ≤ 5. The results showed that there exist five typical swimming patterns for individual squirmers, i.e., steady upward rising (SUR), oscillation across the channel (OAC), oscillation near the wall (ONW), steady upward rising with small-amplitude oscillation (SURO), and vertical motion along the sidewall (VMS). The parametric space (α, β) illustrated the interactions on each pattern. In particular, the range of oscillation angle for ONW is from 19.8° to 32.4° as α varies from 0.3 to 0.7. Moreover, the swimming modes of two interacting squirmers combine the two squirmers’ independent swimming patterns. On the other hand, the pullers (β < 0) attract with each other at the initial stage, resulting in a low-pressure region between them and making the two pullers gradually move closer and finally make contact, while the result for the pushers (β > 0) is the opposite. After the squirmers’ interaction, the squirmer orientation and pressure distribution determine subsequent squirmer swimming patterns. Two pushers separate quickly, while there will be a more extended interaction period before the two pullers are entirely separated. Full article
(This article belongs to the Special Issue Application of the Lattice Boltzmann Method for Particulate Flows)
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