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Advances in Multiphase Flow Science and Technology, 2nd Edition
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Advances in Multiphase Flow Science and Technology, 2nd Edition

A special issue of Fluids (ISSN 2311-5521). This special issue belongs to the section "Heat and Mass Transfer".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 3502

Special Issue Editors

Prof. Dr. Tomoaki Kunugi

E-Mail Website
Guest Editor
Institute of Process Equipment, College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
Interests: multiphase flow science and technology; boiling; thermal engineering; computational fluid dynamics; nuclear engineering; fusion engineering
Special Issues, Collections and Topics in MDPI journals
Dr. Yukihiro Yonemoto

E-Mail Website
Guest Editor
Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
Interests: multiphase flow; interfacial phenomena
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

During this decade, two technologies have become highly advanced—high-speed cameras and lighting and high-speed computing. These technologies are enhancing our understanding of the fundamental physics of multiphase flows and have been widely applied to multiphase problems in many engineering fields. Especially, they have helped to improve our understanding of the dynamics of bubbles and droplets, which are extremely important in both science and engineering fields. Based on this basic knowledge, further new technology and engineering can be developed.

This Special Issue will aim to provide researchers with the opportunity to present and discuss their original work while also identifying future needs in this critical area of research. Papers related to multiphase fluid flow, heat, and mass transfers are highly welcome which not only address fundamental science, but also engineering applications.

Suggested topics include, but are not limited to:

  • Fundamentals:
    • Fundamentals of bubble/droplet formation;
    • Fundamentals of bubble/droplet dynamics;
    • Pool boiling: Bubble dynamics and heat transfer;
    • Flow boiling: Bubble dynamics and heat transfer;
    • Condensation: bubble, droplet and meniscus;
    • Evaporation: bubble, droplet and meniscus;
    • Modeling on boiling and condensation phenomena;
    • Effect of wettability;
  • Applications:
    • Enhancement of critical heat flux;
    • Boiling in heat exchangers;
    • Enhanced condensation;
    • Enhanced evaporation;
    • Spray cooling;
    • Falling film evaporation and condensation;
    • Two-phase heat transfer devices;
  • Methodologies:
    • Novel two-phase measurement and visualization techniques;
    • Numerical simulation and modeling of multiphase flows.

Prof. Dr. Tomoaki Kunugi
Dr. Yukihiro Yonemoto
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. 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

  • bubble dynamics
  • droplet dynamics
  • wettability
  • boiling heat transfer
  • evaporation and condensation
  • numerical simulation of boiling/condensing flow

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

Published Papers (2 papers)

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Research

14 pages, 11770 KiB  
Article
Liquid-Solid Interaction to Evaluate Thermal Aging Effects on Carbon Fiber-Reinforced Composites
by Poom Narongdej, Jack Hanson, Ehsan Barjasteh and Sara Moghtadernejad
Fluids 2024, 9(5), 100; https://doi.org/10.3390/fluids9050100 - 23 Apr 2024
Cited by 1 | Viewed by 1096
Abstract
This study investigated the thermally induced aging effects on a carbon fiber-reinforced composite (CFRP) comprising benzoxazine (BZ) and cycloaliphatic epoxy resin (CER). Herein, we employed various testing methodologies to assess the aging behavior of CFRP samples with differing CER and BZ ratios. Traditional [...] Read more.
This study investigated the thermally induced aging effects on a carbon fiber-reinforced composite (CFRP) comprising benzoxazine (BZ) and cycloaliphatic epoxy resin (CER). Herein, we employed various testing methodologies to assess the aging behavior of CFRP samples with differing CER and BZ ratios. Traditional techniques, including weight change quantification and qualitative analysis of surface morphology, reveal that higher CER content correlates with increased aging. Additionally, wettability analysis demonstrates that both BZ and BZ-CER composites exhibit heightened hydrophilicity with thermal aging, potentially exacerbating concerns such as icing and surface erosion. Notably, the BZ-CER composite displays greater hydrophilicity compared to the BZ composite, consistent with weight change trends. These findings underscore the utility of surface wettability analysis as a valuable tool for monitoring thermo-oxidative aging in polymers and their surface behavior in response to fluid interactions, particularly within high glass transition temperature (Tg) BZ-CER systems utilized in structural composite applications. Full article
(This article belongs to the Special Issue Advances in Multiphase Flow Science and Technology, 2nd Edition)
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25 pages, 5348 KiB  
Article
The Emptying of a Perforated Bottle: Influence of Perforation Size on Emptying Time and the Physical Nature of the Process
by Callen Schwefler, Peyton Nienaber and Hans C. Mayer
Fluids 2023, 8(8), 225; https://doi.org/10.3390/fluids8080225 - 4 Aug 2023
Cited by 2 | Viewed by 1352
Abstract
An inverted bottle empties in a time Te,0 through a process called “glugging”, whereby gas and liquid compete at the neck (of diameter DN). In contrast, an open-top container empties in a much shorter time Te through [...] Read more.
An inverted bottle empties in a time Te,0 through a process called “glugging”, whereby gas and liquid compete at the neck (of diameter DN). In contrast, an open-top container empties in a much shorter time Te through “jetting” due to the lack of gas–liquid competition. Experiments and theory demonstrate that, by introducing a perforation (diameter dp), a bottle empties through glugging, jetting, or a combination of the two. For a certain range of dp/DN, the perforation increases the emptying time, and a particular value of dp/DN is associated with a maximum emptying time Te,max. We show that the transition from jetting to glugging is initiated by the jet velocity reaching a low threshold, thereby allowing a slug of air entry into the neck that stops jetting and starts the glugging. Once initiated, the glugging proceeds as though there is no perforation. Experimental results covered a range of Eötvös numbers from Eo∼ 20–200 (equivalent to a range of DN/Lc∼ 4–15, where Lc is the capillary length). The phenomenon of bottle emptying with a perforation adds to the body of bottle literature, which has already considered the influence of shape, inclination, liquid properties, etc. Full article
(This article belongs to the Special Issue Advances in Multiphase Flow Science and Technology, 2nd Edition)
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