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Applied Sciences
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Advances in Multiphase Flows
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Advances in Multiphase Flows

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: closed (20 August 2022) | Viewed by 2395

Special Issue Editors

Prof. Dr. Kun Luo

E-Mail Website
Guest Editor
School of Energy Engineering, Zhejiang University, Hangzhou 310027, China
Interests: particle-laden flows; reactive multiphase flows; computational energy sciences
Prof. Dr. Lian-Ping Wang

E-Mail Website
Guest Editor
Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Interests: multiphase flows; turbulent flows; computational fluid dynamics; mesoscopic methods; high-performance computing
Prof. Dr. Zhaosheng Yu

E-Mail Website
Guest Editor
Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
Interests: fictitious domain methods; numerical methods; particle-laden flows; turbulent flows; fluid–structure interaction
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Multiphase flows are ubiquitous in nature and engineering applications, such as sediment transport in rivers, sandstorms, airborne transmission of coronaviruses, slurry transport, fluidized beds, and atomization. Despite numerous studies, the physical mechanisms and modeling of transport processes in multiphase flows remain poorly understood, due to complicated interactions between particles and the carrier fluid and the multi-scale behavior of multiphase flows.

This Special Issue welcomes original (and review) works related to analytical, numerical, or experimental studies of multiphase flows and related applications. The contributions involving new phenomena, mechanisms, computational methods, and engineering models on multiphase flows are particularly welcome.

Note: Order guest editors alphabetically according to surname

Prof. Dr. Kun Luo
Prof. Dr. Lian-Ping Wang
Prof. Dr. Zhaosheng Yu
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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2400 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

  • bubble dynamics
  • droplet dynamics
  • particle dynamics
  • particle-laden flows
  • multiphase flows
  • computational method
  • particle–turbulence interactions
  • direct numerical simulation

Published Papers (1 paper)

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Research

12 pages, 1166 KiB  
Article
Lubrication Force Saturation Matters for the Critical Separation Size of the Non-Colloidal Spherical Particle in the Deterministic Lateral Displacement Device
by Zhaosheng Yu, Yutian Yang and Jianzhong Lin
Appl. Sci. 2022, 12(5), 2733; https://doi.org/10.3390/app12052733 - 07 Mar 2022
Cited by 2 | Viewed by 1443
Abstract
Deterministic lateral displacement (DLD) is a popular technique for separating micro-scale and nano-scale particles continuously. In this paper, an efficient three-dimensional fictitious domain method is developed for the direct numerical simulation of the motion of a non-colloidal spherical particle in the DLD device [...] Read more.
Deterministic lateral displacement (DLD) is a popular technique for separating micro-scale and nano-scale particles continuously. In this paper, an efficient three-dimensional fictitious domain method is developed for the direct numerical simulation of the motion of a non-colloidal spherical particle in the DLD device (i.e., cylinder array), based on substantial modification of our previous FD method. A combination of the fast Fourier transformation (FFT) and a tri-diagonal solver is developed to efficiently solve the pressure Poisson equation for a DLD unit with a shifted periodic boundary condition in the streamwise direction. The lubrication force correction is adopted in the fictitious domain method to correct the unresolved hydrodynamic force when the particle is close to the cylinder with the gap distance below one mesh, and the lubrication force is assumed to saturate at a smaller critical gap distance as a result of the surface roughness effect. The proposed method is then employed to investigate the effect of the critical gap distance of the lubrication force saturation on the motion mode (i.e., separation size) of the particle in the DLD device. Our results indicate that the lubrication force saturation is important to the particle critical separation size, and a smaller saturation distance generally makes the particle more prone to the zigzag mode. Full article
(This article belongs to the Special Issue Advances in Multiphase Flows)
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