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Advanced CFD Modeling and Numerical Simulation of Two-Phase and Multiphase...
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Advanced CFD Modeling and Numerical Simulation of Two-Phase and Multiphase Flows

A Special Issue of Fluids (ISSN 2311-5521) belonging to the section "Flow of Multi-Phase Fluids and Granular Materials".

Deadline for manuscript submissions: 31 January 2027 | Viewed by 1199

Editor

Dr. Xiaole Chen

E-Mail Website
Guest Editor
School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210046, China
Interests: computational fluid dynamics (CFD); discrete element method (DEM); in vitro experiments for inhalation dosimetry; inhaler design innovation; occupational exposure risk assessment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Multiphase and two-phase flow phenomena play a critical role in a wide range of engineering, environmental, and biomedical systems, where transport efficiency, resource utilization, and system performance are governed by complex interactions between phases across multiple spatial and temporal scales. With the rapid advancement of computational power and numerical algorithms, high-fidelity multiphase flow simulations have become an indispensable tool for revealing underlying transport mechanisms that are difficult to capture through experiments alone.

This Special Issue aims to provide a focused platform for recent progress in numerical modeling, simulation methodologies, and mechanistic analysis of two-phase and multiphase flows, with particular emphasis on improving efficiency, controllability, and utilization of materials or energy in practical systems. Contributions may cover, but are not limited to, Eulerian–Lagrangian and Eulerian–Eulerian frameworks, interface-capturing and interface-tracking methods, particle–fluid interaction models, turbulence–multiphase coupling, and multi-scale or multi-physics simulations.

We welcome original research articles and comprehensive reviews that demonstrate how advanced numerical approaches can be used to understand transport, dispersion, deposition, phase change, or reaction processes in complex flow environments. Studies that link numerical predictions with experimental validation, parametric optimization, or system-level performance assessment are particularly encouraged. By integrating modeling innovation with application-oriented analysis, this Special Issue seeks to highlight the growing role of multiphase flow simulation as a unifying methodology for addressing efficiency and resource-related challenges across diverse scientific and engineering domains.

Dr. Xiaole Chen
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-anonymized 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

  • multiphase flow
  • two-phase flow
  • numerical simulation
  • CFD
  • particle–fluid interaction
  • transport and deposition

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Published Papers (2 papers)

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Research

15 pages, 4333 KB  
Article
Investigating the Effect of UV Light on Marangoni Flow and Drainage of Aqueous Photoswitchable Microscale Foams
by Nastaran Rezaee, John Aunna and Jamal Naser
Fluids 2026, 11(8), 206; https://doi.org/10.3390/fluids11080206 - 21 Aug 2026
Viewed by 257
Abstract
Exposing foams stabilized by photoswitchable surfactants to UV light induces changes in surface surfactant concentration, leading to significant alterations in foam behaviour such as the generation of Marangoni flow and change in foam drainage patterns. The occurrence of Marangoni flow can be observed [...] Read more.
Exposing foams stabilized by photoswitchable surfactants to UV light induces changes in surface surfactant concentration, leading to significant alterations in foam behaviour such as the generation of Marangoni flow and change in foam drainage patterns. The occurrence of Marangoni flow can be observed when either all elements of the foam or only their films are exposed to UV light. Conversely, changes in foam drainage occur when a macroscale portion of a foam column is exposed to UV light. To explore these phenomena, numerical models are developed and validated using experimental data. These models simulate the scale and profile of Marangoni flow from foam networks to films, as well as the drainage flow within the foam network. Microscale findings demonstrate that Marangoni flow can be controlled by adjusting the intensity and duration of UV light exposure. Macroscopically, the drainage profile in exposed foam regions undergoes significant changes with varying UV intensity. Furthermore, beyond a certain threshold, the foam drainage reverses direction, contrary to gravity. The effect of foam interfacial mobility on the reversed drainage of both interior and exterior foams is analyzed. The findings provide a potential tool to control foam drainage behaviour without the need to modify other variables. Full article
(This article belongs to the Special Issue Advanced CFD Modeling and Numerical Simulation of Two-Phase and Multiphase Flows)
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16 pages, 4598 KB  
Article
Comparing Methods of Deforming and Overlapping Meshes to Simulate the Motion of Bodies on a Free Surface
by Andrey Kozelkov, Andrey Kurkin, Kseniya Plygunova, Vadim Kurulin and Vitaliy Gerasimov
Fluids 2026, 11(6), 138; https://doi.org/10.3390/fluids11060138 - 31 May 2026
Viewed by 564
Abstract
Two methods of accounting for the motion of the bodies—the deforming mesh method and the method of overlapping meshes (or overset mesh method)—are compared using problems with floating bodies, which are typical for the shipbuilding industry. Three problems are considered: oscillation of the [...] Read more.
Two methods of accounting for the motion of the bodies—the deforming mesh method and the method of overlapping meshes (or overset mesh method)—are compared using problems with floating bodies, which are typical for the shipbuilding industry. Three problems are considered: oscillation of the cylinder on the water surface, movement of the box under the influence of waves, and heaving and pitching of the ship model in head waves. Numerical computations are carried out in the LOGOS software package, the simulation methodology used is based on the solution of a system of Reynolds-averaged Navier-Stokes equations, and the Volume of fluid (VOF) method to take into account the free surface. In all problems, the characteristics of the movement of bodies are evaluated; the resistance force of the ship model is also determined in the third problem; control values obtained using two methods of accounting for moving bodies are compared with the available experimental data. The results of numerical simulation have shown that both methods predict body movement parameters well; the accuracy in determining the resistance force in the task of streamlining the ship’s hull is also comparable: the difference between the maximum deviations of the resistance coefficient in the computations with deformation and overlapping computation meshes is 0.5%. In the case of computations of the three-dimensional problem, the time spent when using the mesh-deformation method turned out to be 10% more; therefore, the method of overlapping meshes can be considered more optimal when solving such shipbuilding tasks as self-propelled tests and streamlining the ship’s hull with and without wind and wave loads. Full article
(This article belongs to the Special Issue Advanced CFD Modeling and Numerical Simulation of Two-Phase and Multiphase Flows)
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