Energy Transfer in Liquids

A special issue of Liquids (ISSN 2673-8015).

Deadline for manuscript submissions: 31 December 2024 | Viewed by 1874

Special Issue Editor


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Department of Chemistry, Concordia College, Moorhead, MN 56562, USA
Interests: physical chemistry; spectroscopy; liquids; physical neuroscience; physical chemistry
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Special Issue Information

Dear Colleagues, 

The aim of this Special Issue is to bring together a diverse range of experimental, theoretical, and computational studies encompassing various aspects of energy transfer in liquids. The scope spans molecular liquids, ionic liquids, and liquid mixtures, thus offering a wide range of themes. The energy transfer processes explored in this issue span a wide spectrum of timescales, ranging from ultrafast to slow. Theoretical and experimental techniques include quantum mechanical, statistical mechanics, thermodynamic, and fluid mechanics approaches. Applications extend to various disciplines such as physics, chemistry, biology, engineering, and geology. In addition to original research articles, we welcome reviews and educational papers that contribute to the understanding of this subject.

Prof. Dr. Darin J. Ulness
Guest Editor

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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. Liquids is an international peer-reviewed open access quarterly journal published by MDPI.

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Keywords

  • energy transfer
  • molecular liquids
  • ionic liquids
  • liquid mixtures
  • energy dissipation
  • molecular dynamics
  • non-equilibrium processes
  • thermalization
  • excitation energy transfer
  • vibrational energy transfer
  • relaxation dynamics
  • thermal diffusion
  • conductivity
  • convection

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Published Papers (2 papers)

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Research

12 pages, 1349 KiB  
Article
Interactions of Laser-Induced Thermal Plume with Liquid–Air Interfaces in Straight-Chain Alcohols
by Reese W. Anderson, Allison I. Anderson, Mark W. Gealy and Darin J. Ulness
Liquids 2024, 4(4), 732-743; https://doi.org/10.3390/liquids4040041 - 22 Nov 2024
Viewed by 396
Abstract
This study investigates the dynamics of thermal plumes interacting with the liquid–air interface in straight-chain alcohols and their mixtures using a photothermal imaging technique based on thermal lensing. This method enables the indirect measurement of temperature gradients via changes in refractive index caused [...] Read more.
This study investigates the dynamics of thermal plumes interacting with the liquid–air interface in straight-chain alcohols and their mixtures using a photothermal imaging technique based on thermal lensing. This method enables the indirect measurement of temperature gradients via changes in refractive index caused by localized laser heating. Employing a collimated laser beam, the results show the formation and evolution of cylindrical heated zones and their interactions with the liquid–air interface. The study reveals that, while some alcohols exhibit stable surface behaviors, others demonstrate complex dynamical behaviors, including strong stable steady-state oscillations. The findings contribute to understanding fluid dynamics in molecular liquids near their liquid–air interfaces. Full article
(This article belongs to the Special Issue Energy Transfer in Liquids)
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20 pages, 11389 KiB  
Article
Frustrated-Laser-Induced Thermal Starting Plumes in Fresh and Salt Water
by Johnathan Biebighauser, Johan Dominguez Lopez, Krys Strand, Mark W. Gealy and Darin J. Ulness
Liquids 2024, 4(2), 332-351; https://doi.org/10.3390/liquids4020017 - 8 Apr 2024
Cited by 1 | Viewed by 963
Abstract
The results of a photothermal spectroscopy technique that effectively images convective and conductive heat flow in liquids via a thermal lensing effect are described. Pure water; sodium chloride solutions at salinities of approximately 5, 15, 25, and 35 g/kg; and an artificial seawater [...] Read more.
The results of a photothermal spectroscopy technique that effectively images convective and conductive heat flow in liquids via a thermal lensing effect are described. Pure water; sodium chloride solutions at salinities of approximately 5, 15, 25, and 35 g/kg; and an artificial seawater of 35 g/kg were studied across a range of temperatures. This system was studied because of the importance of thermal pluming in seawater. ‘Frustrated’ thermal starting plumes were observed near the temperature of maximum density. The physical characteristics of these thermal starting plumes are reported. Full article
(This article belongs to the Special Issue Energy Transfer in Liquids)
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