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Processes
Special Issues
Multi-Phase Flow and Heat and Mass Transfer Engineering
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Multi-Phase Flow and Heat and Mass Transfer Engineering

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1443

Special Issue Editors

Dr. Bin Ding

E-Mail Website
Guest Editor
College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
Interests: two-phase flow; heat transfer; phase change; liquid–liquid phase separation; thermal management
Dr. Xiao Cheng

E-Mail Website
Guest Editor
Liangjiang International College, Chongqing University of Technology, Chongqing 401135, China
Interests: two-phase flow and heat transfer in microchannels; electronic device cooling; microchannel heat exchanger; electrowetting
Dr. Mingfei Mu

E-Mail Website
Guest Editor
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qindao 266590, China
Interests: two-phase flow; heat transfer; particulate filter; thermal management

Special Issue Information

Dear Colleagues,

Multi-phase flow and heat and mass transfer play critical roles in various fields, including fossil energy extraction, nuclear energy, aerospace, and microelectronics. For example, the performance of microelectronic systems is constrained by the cooling efficiency of fluids in microchannels. Researchers have made significant progress in understanding multiphase flow behaviors and heat transfer characteristics. However, considerable challenges remain in controlling multiphase flow behaviors and enhancing heat transfer.

This Special Issue aims to gather and present novel technologies and advancements in ‘Multi-Phase Flow and Heat and Mass Transfer Engineering’. Topics include, but are not limited to:

  • Boiling heat transfer in microchannels;
  • Phase change heat transfer enhancement of two-phase flow;
  • Non-Newtonian multiphase flows;
  • Condensation and evaporation;
  • Droplet dynamic behaviors;
  • Melting/solidification behaviors of phase change materials (PCMs);
  • Experimental methods for multiphase flow and heat transfer;
  • Computational techniques for multiphase flow and heat transfer.

Dr. Bin Ding
Dr. Xiao Cheng
Dr. Mingfei Mu
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. Processes 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 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

  • multiphase flow
  • phase change
  • heat transfer enhancement
  • droplets
  • microchannel
  • emerging thermo-fluid
  • thermal management

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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

21 pages, 11950 KiB  
Article
Hot-Wire Investigation of Turbulent Flow over Vibrating Low-Pressure Turbine Blade Cascade
by Vitalii Yanovych, Hryhorii Kaletnik, Volodymyr Tsymbalyuk, Daniel Duda and Václav Uruba
Processes 2025, 13(4), 926; https://doi.org/10.3390/pr13040926 - 21 Mar 2025
Viewed by 302
Abstract
This paper presents experimental results on unsteady turbulent flow in a low-pressure turbine blade cascade, specifically exploring the effects of blade vibrations on wake topology and turbulence structure. The study focused on comparing the flow patterns of a stationary blade to those observed [...] Read more.
This paper presents experimental results on unsteady turbulent flow in a low-pressure turbine blade cascade, specifically exploring the effects of blade vibrations on wake topology and turbulence structure. The study focused on comparing the flow patterns of a stationary blade to those observed during its bending and torsion vibrations. Hot-wire anemometry was used for the experimental analysis. The flow velocity was characterized by a chord-based Reynolds number of approximately Rec≈2.3×105, with the excitation frequency set at f=72.8Hz. The findings reveal a strong effect of the bending mode on the wake topology, resulting in a 5% reduction in the streamwise velocity deficit compared to the stationary and torsional modes. Additionally, the bending mode encourages the active formation of large vortices in the wake region, which leads to a fivefold increase in the integral length scale. In contrast, the Kolmogorov microscale remains consistent across all scenarios, exhibiting a minimum in the wake region and a maximum in the inter-blade space. The paper also discusses the impact of blade oscillations on the energy dissipation rate. Various calculation methods yield consistent results, indicating that the lowest dissipation rate occurs during the bending mode. Furthermore, the paper emphasizes the spectral analysis of turbulent flow and provides a comprehensive assessment of the Taylor microscale under different experimental censorious. Full article
(This article belongs to the Special Issue Multi-Phase Flow and Heat and Mass Transfer Engineering)
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17 pages, 12837 KiB  
Article
The Geometric Effect on the Two-Fluid Mixing in Planetary Centrifugal Mixer During Spin-Up: A Numerical Study
by Liang Qin, Huan Han, Xiaoxia Lu, Lei Li, Jianghai Liu, Xiaofang Yan and Yinze Zhang
Processes 2025, 13(3), 874; https://doi.org/10.3390/pr13030874 - 16 Mar 2025
Viewed by 279
Abstract
In this paper, the geometric effect on flow structure and mixing performance of two miscible fluids (deionized water and glycerol) in a planetary centrifugal mixer (PCM) during the spin-up is numerically evaluated, using the OpenFOAM interMixingFoam solver. Six different aspect ratios, specifically 0.5, [...] Read more.
In this paper, the geometric effect on flow structure and mixing performance of two miscible fluids (deionized water and glycerol) in a planetary centrifugal mixer (PCM) during the spin-up is numerically evaluated, using the OpenFOAM interMixingFoam solver. Six different aspect ratios, specifically 0.5, 1, 1.25, 1.5, 2, and 2.5, are considered. The flow structure in each geometric configuration is illustrated by the liquid interface and vorticity isosurface represented by the Q criterion, while the mixing performance is evaluated in terms of a mixing index MI. As the aspect ratio increases from small to large, MI first increases and then decreases. The peak MI at the end of spin-up reaches 0.196 for the aspect ratio of 1.25, rather than the other five aspect ratios in our study. The mechanism analysis shows that under an aspect ratio of 1.25, the vortex structure is most violently dissipated, the interface collapse degree is the largest, and the low-velocity region volume is the smallest, which enhances the chaotic convection mixing. Full article
(This article belongs to the Special Issue Multi-Phase Flow and Heat and Mass Transfer Engineering)
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16 pages, 4369 KiB  
Article
Numerical Investigation of Heat Transfer Characteristics Between Thermochemical Heat Storage Materials and Compressed Natural Gas in a Moving Bed
by Liang Wang, Yun Jia, Yu Tan and Bin Ding
Processes 2025, 13(1), 8; https://doi.org/10.3390/pr13010008 - 24 Dec 2024
Viewed by 477
Abstract
To promote energy conservation and a low-carbon approach in natural gas storage, efficient methods for utilizing waste heat during gas injection and maintaining adequate cooling rates are crucial. This study developed a three-dimensional model integrating the desorption process of hydrated salts to analyze [...] Read more.
To promote energy conservation and a low-carbon approach in natural gas storage, efficient methods for utilizing waste heat during gas injection and maintaining adequate cooling rates are crucial. This study developed a three-dimensional model integrating the desorption process of hydrated salts to analyze temperature and flow fields within a moving bed during heat exchange. This study systematically evaluated the effects of operating parameters on key outcomes, including the outlet temperatures of hydrated salts and natural gas, as well as the waste heat recovery ratio. Results indicated that the outlet temperatures of natural gas and particles varied synchronously, while the waste heat recovery ratio exhibited an inverse relationship with the natural gas outlet temperature. Remarkably, incorporating a composite material comprising hydrated calcium chloride and hydrated magnesium sulfate into the moving bed reduced the natural gas outlet temperature from 60 °C to 47.5 °C. Concurrently, the waste heat recovery ratio improved substantially, rising from 66% to 90%. Furthermore, the proposed moving bed heat exchange system requires less than one-third of the volume of conventional natural gas air-cooled heat exchangers. These findings provide theoretical insights and robust data support for enhancing cross-seasonal waste heat utilization in natural gas storage facilities. Full article
(This article belongs to the Special Issue Multi-Phase Flow and Heat and Mass Transfer Engineering)
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