Numerical Simulations for Thermal Engineering and Thermodynamic Systems

A special issue of Thermo (ISSN 2673-7264).

Deadline for manuscript submissions: 15 September 2024 | Viewed by 838

Special Issue Editors


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Guest Editor
Laboratory of Applied Thermodynamics, School of Mechanical Engineering, National Technical University of Athens, 9 Heroon Polytechneiou, 15780 Athens, Greece
Interests: thermodynamics; stirling engines; heat transfer; thermal engines; cryogenics; energy engineering; engine modelling and simulations; renewables
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Co-Guest Editor
Applied Thermodynamics Laboratory, School of Mechanical Engineering, National Technical University of Athens, 15780 Athens, Greece
Interests: thermodynamics; cryogenics; engine modelling and simulations; statistical thermodynamics; social physics; low-temperature physics; artificial intelligence
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Guest Editors of the MDPI Thermo Special Issue “Numerical Simulations for Thermal Engineering and Thermodynamic Systems” are inviting authors to submit work for publication. This publication intends to include a wide range of heat transfer and thermodynamics papers covering both theoretical models as well as applications. Models and simulations of heat transfer are complicated procedures dealing with a lot of different phenomena. Those that this Special Issue is aiming towards can be under the scope of CFD modelling or pure thermodynamical analysis, while applications of informational statistical descriptions of such systems are also of interest.

Overall, the topics of interest for this Special Issue include, but are not limited to:

  • Numerical models of heat exchangers;
  • Modelling and simulations of 1D and 3D thermal engines and refrigeration systems;
  • Numerical solution methods for the engine and thermal designs;
  • Numerical validation/verification of CFD and heat transfer models against simulations or experimental data;
  • Descriptions of heat transfer models at extreme temperature ranges and phases of matter (plasma physics, Bose–Einstein Condensates, superfluids etc.);
  • Mathematical models for novel solutions of heat transfer or thermofluids models;
  • Combination of numerical and AI models for the description of systems (radiation, porous media, heat exchanges etc.);
  • Applications of renewable technologies relating to power production from applications, such as solar cells, under the scope of their thermal behaviour;
  • Derivations of heat transfer properties of materials;
  • Applications of thermodynamic simulations to informational systems.

In this issue, authors can also submit review papers which consider the modelling and simulations of heat transfer or closely related subjects. In terms of review papers, authors are encouraged to contact the editors to verify that the proposed review is of interest to the Issue.

You may choose our Joint Special Issue in Entropy.

Prof. Dr. Emmanouil Rogdakis
Dr. George-Rafael Domenikos
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. Thermo is an international peer-reviewed open access quarterly 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 1000 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

  • thermodynamics
  • heat transfer
  • numerical modelling
  • simulations
  • optimization
  • renewables
  • energy transfer

Published Papers (1 paper)

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Research

15 pages, 5581 KiB  
Article
Analysis of Supersonic Flows inside a Steam Ejector with Liquid–Vapor Phase Change Using CFD Simulations
by Hugues Charton, Christian Perret and Hai Trieu Phan
Thermo 2024, 4(1), 1-15; https://doi.org/10.3390/thermo4010001 - 12 Jan 2024
Viewed by 588
Abstract
In this work, different CFD models to compute flows inside a steam ejector were investigated. The results were compared to the analytical models as well as the experimental results from the literature. All the simulations gave realistic results from the hydrodynamic perspective with [...] Read more.
In this work, different CFD models to compute flows inside a steam ejector were investigated. The results were compared to the analytical models as well as the experimental results from the literature. All the simulations gave realistic results from the hydrodynamic perspective with a relative error of the entrainment ratio between 25% and 40% compared to reference experimental data. However, an analysis of the temperature profiles showed that only realistic results from the thermodynamic perspective were given by multiphase calculations. The first multiphase model tested was the so-called Wet-Steam model from ANSYS Fluent. This model gave inconsistent results for the steam ejector CFD simulation due to the physical boundaries of this model. The second model tested was the Eulerian mixture model, which gave the most realistic results in terms of the physical conditions of the liquid and vapor phases inside the ejector. It also showed that the phase change could have a significant impact on the value of the critical output pressure as a way to improve the performance of the ejector. Full article
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