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Advances in Particle and Powder Technology: Theory, Methods, and Applications
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Advances in Particle and Powder Technology: Theory, Methods, and Applications

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

Deadline for manuscript submissions: 20 June 2026 | Viewed by 3333

Special Issue Editor

Dr. Dmitry Portnikov

E-Mail Website
Guest Editor
Department of Civil Engineering, Sami Shamoon College of Engineering, Beersheba, Israel
Interests: particle mechanics; pneumatic conveying; granular material behavior; energy storage in phase change materials

Special Issue Information

Dear Colleagues,

We are pleased to invite researchers to submit their work to this Special Issue, "Advances in Particle and Powder Technology: Theory, Methods, and Applications", which aims to highlight recent developments in particle and powder technology. This Special Issue will focus on theoretical, numerical, and experimental advancements related to the behavior, handling, and processing of granular and powdered materials.

Research areas of interest include, but are not limited to, the following:

  1. Experimental techniques for characterizing particle mechanical and physical properties—advancing measurement and testing methodologies for granular materials.
  2. Innovations for conveying, handling, and storing bulk solids—developing and improving systems for efficient material transport and storage.
  3. Comminution and attrition processes—investigating particle breakage mechanisms under both controlled and uncontrolled conditions. This includes milling techniques as well as unintentional breakage occurring in various bulk material handling processes.
  4. Compaction and tabletization processes—studying the compression behavior of bulk solids and the formation of tablets in powder-based applications.
  5. Fluid–particle interactions in industrial and natural systems—studying the coupled behavior of particles and fluids in various applications.
  6. Numerical modeling and simulation of particulate systems—utilizing computational tools to analyze and predict particle behavior.
  7. Applications across industries—including pharmaceuticals, food processing, mining, and materials engineering.

We look forward to receiving your contributions.

Dr. Dmitry Portnikov
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 250 words) can be sent to the Editorial Office for assessment.

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

  • particle technology
  • powder technology
  • granular materials
  • fluid–particle interactions
  • bulk solid handling
  • multiphase flows
  • numerical modeling of particulate systems
  • experimental characterization
  • industrial applications of powders

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

22 pages, 6228 KB  
Article
Development of an Experimental 3D Model of the Gas Flow in a Spiral Jet Mill and Validation of Abramovich’s Nozzle Jet Model
by Lisa Marie Radeke, Mathias Ulbricht and Heyko Jürgen Schultz
Appl. Sci. 2025, 15(24), 13010; https://doi.org/10.3390/app152413010 - 10 Dec 2025
Viewed by 644
Abstract
The processes occurring inside a spiral jet mill are significantly influenced by the flow conditions within the grinding chamber. As part of this work, an experimental 3D model of the grinding gas flow is successfully developed for the first time based on the [...] Read more.
The processes occurring inside a spiral jet mill are significantly influenced by the flow conditions within the grinding chamber. As part of this work, an experimental 3D model of the grinding gas flow is successfully developed for the first time based on the results of PIV measurements. This model demonstrates the typical spiral vortex flow superimposed by the nozzle jets, as well as the characteristic comminution and classifying zones. In addition, the three-dimensional analysis of the nozzle jet enables the first experimental validation of the theoretical assumption proposed in the literature that the flow dynamics in this region can be described by Abramovich’s nozzle jet model. The vortex pair located on the back of the nozzle jet essentially contributes to the formation of the kidney-shaped flow cross-section of the nozzle jet. The two vortices are verified both by the flow dynamics based on the unloaded grinding gas flow and by observing the abrasion on the inner wall of the grinding chamber caused by the particle-loaded flow. Consequently, the experimental findings can be utilized to create a model of the deflected and deformed nozzle jet, thereby providing a profound understanding of the flow processes within a spiral jet mill, particularly in the region of the nozzle jets. Full article
(This article belongs to the Special Issue Advances in Particle and Powder Technology: Theory, Methods, and Applications)
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38 pages, 9567 KB  
Article
A Phase Map for Vertical Upflow of Slightly Cohesive Geldart A Powders Focused on High Solids Mass Flux
by Prabu Balasubramanian, Andrew Cowell and Don McGlinchey
Appl. Sci. 2025, 15(23), 12503; https://doi.org/10.3390/app152312503 - 25 Nov 2025
Viewed by 598
Abstract
Flow regimes of vertical upflow for slightly cohesive Geldart A powders at high solids mass flux (Gs≳ 500 kg/m2s) are not fully resolved. In particular, Dense Suspension Upflow (DSU) as a distinct flow regime and its transition boundaries [...] Read more.
Flow regimes of vertical upflow for slightly cohesive Geldart A powders at high solids mass flux (Gs≳ 500 kg/m2s) are not fully resolved. In particular, Dense Suspension Upflow (DSU) as a distinct flow regime and its transition boundaries are not broadly accepted. Furthermore, the locus of the pressure gradient minimum, which is the broadly accepted dense–dilute transition at low Gs, requires validation at high Gs. In our recent work, by adapting the phase map of Wirth and by Eulerian modeling, DSU was defined as a distinct flow regime with gross upflow of solids and with granular temperature at the wall greater than that in the bulk. This study has further validated the definition of DSU and its transition boundaries by extending the modeling to areas not fully explored in the earlier work. Furthermore, this study has identified (a) the possibility of a phase of DSU between fast fluidization and turbulent regime at all Gs; and (b) the need to review the suitability of the locus of the pressure gradient minimum as the dense–dilute transition at high Gs. Additionally, our work has demonstrated (a) a new provisional correlation that the upper transport velocity for Geldart A powders is significantly greater than hitherto predicted; and (b) the slip velocity in the transport regimes increases with Gs to peak within fast fluidization and falls thereafter to attain low multiples of the terminal settling velocity within DSU. Full article
(This article belongs to the Special Issue Advances in Particle and Powder Technology: Theory, Methods, and Applications)
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16 pages, 2261 KB  
Article
Test Apparatus for Determining the Particle-to-Particle Friction Coefficient
by Álvaro Ramírez-Gómez, Jørgen Nielsen, Lidia Amodio and Maurizio Pagano
Appl. Sci. 2025, 15(22), 11939; https://doi.org/10.3390/app152211939 - 10 Nov 2025
Cited by 1 | Viewed by 868
Abstract
Granular materials usually require the design of specialised equipment for their processing and transport. Nowadays, equipment design increasingly relies on modelling techniques to support decision-making during the design process. The Discrete Element Method (DEM) is a numerical technique that enables the prediction of [...] Read more.
Granular materials usually require the design of specialised equipment for their processing and transport. Nowadays, equipment design increasingly relies on modelling techniques to support decision-making during the design process. The Discrete Element Method (DEM) is a numerical technique that enables the prediction of forces and displacements acting on individual particles. The design of ship loaders, dumpers, screw conveyors, conveyor belts, moving floors, bucket elevators, truck feeders, hoppers, and silos can all benefit from DEM-based predictions of particle behaviour. To develop DEM models able to accurately predict the particle behaviour, it is essential to characterise the material by determining its physical and mechanical properties. Key parameters include particle density, elastic modulus, Poisson’s ratio, particle-to-wall friction, and particle-to-particle friction. In this research, a methodology is proposed for determining the particle-to-particle friction coefficient. For this purpose, a test apparatus was designed and constructed to perform direct measurements of sliding angles. The proposed method yielded an average particle-to-particle friction coefficient of μ = 0.62, based on twelve independent sliding-angle tests. The measurements showed an overall relative standard deviation of 3.4%, indicating good repeatability and demonstrating that the developed apparatus provides reliable and consistent friction values for granular particles. The primary aim of the study was to validate the test method. Hand-made clay samples were produced, arranging the particles in different configurations and placing them in various orientations on the apparatus. The results confirm that the proposed method is suitable for determining representative particle-scale friction parameters, offering a simple and repeatable approach that can support DEM calibration and enhance the predictive capability of granular flow simulations. Full article
(This article belongs to the Special Issue Advances in Particle and Powder Technology: Theory, Methods, and Applications)
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