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Fluids
Special Issues
CFD-DEM Modelling of Multiphase Flow
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CFD-DEM Modelling of Multiphase Flow

A special issue of Fluids (ISSN 2311-5521). This special issue belongs to the section "Mathematical and Computational Fluid Mechanics".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 1520

Special Issue Editor

Dr. Saidul Islam

E-Mail Website
Guest Editor
School of Mechanical and Mechatronic Engineering, University of Technology Sydney (UTS), 15 Broadway, Ultimo, NSW 2007, Australia
Interests: heat wave; bush fire and air-quality; particle transport, and deposition; human lung modelling; microfluidics; CFD; heat and mass transfer
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleague,

Fluid flow and particle transport have attracted the attention of the researchers due to its widespread applications in engineering systems as well as in other applications. There are many possible applications for gas–liquid, liquid–liquid, gas–solid, and liquid–solid flow regimes. Slug flow, particle-laden flow, slurry flow, fluidized beds, and sedimentation are a few examples of multiphase flow. Many real-life applications, including spray drying, inertial separation, particle transport in the lung, cyclone separatord, liquid fuel, and aerosol dispersion, are classic examples of multiphase flow. A precise understanding of multiphase flow modelling is important for engineering systems and device optimization. This Special Issue is open to any subject area related to fluid flow and particle transport modelling.

Dr. Saidul Islam
Guest Editor

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. Fluids 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 1800 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

  • fluid flow
  • particle transport
  • human lung modelling
  • particle flow and heat transfer
  • two-phase heat transfer
  • boiling
  • evaporation
  • microfluidics
  • nanofluidics
  • phase change
  • condensation
  • multiphase flow
  • CFD
  • DEM
  • particle-laden flow
  • machine learning and particle flow
  • fluidized bed
  • microfluidic cell separation
  • porous media
  • heat transfer
  • granular flow
  • other flows
  • particle dispersion and segregation
  • particle technology

Published Papers (1 paper)

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Research

23 pages, 8270 KiB  
Article
Numerical Analysis of Multi-Particulate Flow Behaviour in CFB Riser Coupled with a Kinetic Theory
by Fardausur Rahaman, Abd Alhamid Rafea Sarhan and Jamal Naser
Fluids 2023, 8(9), 257; https://doi.org/10.3390/fluids8090257 - 21 Sep 2023
Viewed by 989
Abstract
In this work, a three-dimensional CFD model for the gas–solid flow of two different particle sizes in a CFB riser coupled with a kinetic theory (KT) has been developed. The properties of the solid phases are calculated using the proposed multi-particle kinetic theory. [...] Read more.
In this work, a three-dimensional CFD model for the gas–solid flow of two different particle sizes in a CFB riser coupled with a kinetic theory (KT) has been developed. The properties of the solid phases are calculated using the proposed multi-particle kinetic theory. The CFD model is implemented in the commercial CFD software CFX4.4. In the current model, one gas phase and two solid phases are used. However, the model is generalised for one carrier phase and N number of solid phases to enable a realistic particle size distribution in the system. The momentum, volume fraction and granular temperature equations are solved for each individual solid phase and implemented into the CFD model through user-defined functions (UDFs). The k-ε turbulence model is used in simulating the circulating fluidised bed model. For verification, simulation results obtained with the new KT model were compared with experimental data, and then the model was used for further analysis. It was found that the proposed multi-particle model can be used to calculate the properties of gas–solid systems with particles of different sizes and/or densities, removing the assumptions of previous models that required all the particles to be of an equal mass, size and density. Full article
(This article belongs to the Special Issue CFD-DEM Modelling of Multiphase Flow)
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