Special Issue "Recent Advances in Conjugate Heat Transfer"

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics and Symmetry/Asymmetry".

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editors

Prof. Dr. Abderrahmane Baïri
E-Mail Website
Guest Editor
Laboratoire de Thermique Interfaces Environnement (LTIE), Université de Paris, Paris, France
Interests: applied heat transfer; natural convection; nanofluid; porous media; experimentation; fluid dynamics; numerical modeling; interfaces; renewable energy; thermal characterization
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Special Issue Information

Dear Colleagues,

Progress in different engineering fields, including electronics, power engineering, chemical engineering, and others, demands an organization of digital twin that can optimize the technological process. Moreover, a digital twin for the considered engineering system will be useful to understand the nature of the process and separate phenomena. It should be noted that heat and mass transfer is a major transport phenomenon within various engineering and natural systems. Very often, a detailed description of the energy transport requires the analysis of complex heat transfer, including convection and radiation within the fluid domain and heat conduction within the solid blocks. Such heat transfer can be considered a conjugate heat transfer. This complex heat transfer should be used for the accurate description of cooling systems in electronics, optimization of the heat exchangers, development of the crystal growth systems, optimization of the building thermal insulation, modeling of the building thermal performance, and so on. Therefore, numerical simulation of conjugate heat transfer is a very topical challenge and the obtained results can be used in practice. It should be noted that symmetry analysis can also help to obtain very interesting and useful information about the considered phenomena using conservation laws. At the same time, experimental research of such complex heat transfer can obtain the necessary data for validation of the developed mathematical models and numerical methods.

This Special Issue will focus on advances in the numerical and experimental analysis of conjugate heat transfer that can be applied for different engineering and natural systems. It is a very good opportunity to combine original manuscripts on the considered topic to present useful guidelines for future researches.

Dr. Mikhail Sheremet
Prof. Dr. Abderrahmane Baïri
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 papers will be 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. Symmetry 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

  • heat transfer enhancement
  • numerical and experimental simulation
  • electronics cooling
  • phase change materials
  • heat exchangers
  • crystal growth
  • building applications

Published Papers (2 papers)

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Research

Article
Numerical Investigation of Mixing by Induced Electrokinetic Flow in T-Micromixer with Conductive Curved Arc Plate
Symmetry 2021, 13(6), 915; https://doi.org/10.3390/sym13060915 - 21 May 2021
Cited by 1 | Viewed by 540
Abstract
Mixing is essential in microdevices. Therefore, increasing the mixing efficiency has a significant influence on these devices. Using conductive obstacles with special geometry can improve the mixing quality of the micromixers. In this paper, a numerical study on the mixing caused by an [...] Read more.
Mixing is essential in microdevices. Therefore, increasing the mixing efficiency has a significant influence on these devices. Using conductive obstacles with special geometry can improve the mixing quality of the micromixers. In this paper, a numerical study on the mixing caused by an induced-charge electrokinetic micromixer was carried out using a conductive plate with a curved arc shape instead of a conductive flat plate or other non-conductive obstacles for Newtonian fluids. This study also explored the effect of the different radius curves, span length, the number of curved arc plates in the channel, the pattern of arrangement, concavity direction, and the orientation angle against the flow on the mixing. Furthermore, the efficiency of the T-micromixer against a flow with a low diffusion coefficient was investigated. It should be noted that the considered channel is symmetric regarding to the middle horizontal plane and an addition of flat plate reflects a formation of symmetric flow structures that do not allow to improve the mixture process. While an addition of non-symmetric curved arc plates al-lows to increase the mixing by creating vortices. These vortices were created owing to the non-uniform distribution of induced zeta potential on the curved arc plate. A rise in the span length of the curved arc plate when the radius was constant improved the mixing. When three arc plates in one concavity direction were used, the mixing efficiency was 91.86%, and with a change in the concavity direction, the mixing efficiency increased to 95.44%. With a change in the orientation angle from 0 to 25, the mixing efficiency increased by 19.2%. Full article
(This article belongs to the Special Issue Recent Advances in Conjugate Heat Transfer)
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Article
Free Convection Heat Transfer and Entropy Generation in an Odd-Shaped Cavity Filled with a Cu-Al2O3 Hybrid Nanofluid
Symmetry 2021, 13(1), 122; https://doi.org/10.3390/sym13010122 - 12 Jan 2021
Viewed by 508
Abstract
The present paper aims to analyze the thermal convective heat transport and generated irreversibility of water-Cu-Al2O3 hybrid nanosuspension in an odd-shaped cavity. The side walls are adiabatic, and the internal and external borders of the enclosure are isothermally kept at [...] Read more.
The present paper aims to analyze the thermal convective heat transport and generated irreversibility of water-Cu-Al2O3 hybrid nanosuspension in an odd-shaped cavity. The side walls are adiabatic, and the internal and external borders of the enclosure are isothermally kept at high and low temperatures of Thand Tc, respectively. The control equations based on conservation laws are formulated in dimensionless form and worked out employing the Galerkin finite element technique. The outcomes are demonstrated using streamlines, isothermal lines, heatlines, isolines of Bejan number, as well as the rate of generated entropy and the Nusselt number. Impacts of the Rayleigh number, the hybrid nanoparticles concentration (ϕhnf), the volume fraction of the Cu nanoparticles to ϕhnf ratio (ϕr), width ratio (WR) have been surveyed and discussed. The results show that, for all magnitudes of Rayleigh numbers, increasing nanoparticles concentration intensifies the rate of entropy generation. Moreover, for high Rayleigh numbers, increasing WR enhances the rate of heat transport. Full article
(This article belongs to the Special Issue Recent Advances in Conjugate Heat Transfer)
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