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Symmetry
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Liquid-Solid Interfacial Phenomena on Complex Surfaces
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Liquid-Solid Interfacial Phenomena on Complex Surfaces

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Computer".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 15893

Special Issue Editors

Prof. Dr. António Luis N. Moreira

E-Mail Website
Guest Editor
Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
Interests: multi-scale transport phenomena at solid-liquid interfaces, thermodynamics, combustion and IC engines
Special Issues, Collections and Topics in MDPI journals
Dr. Ana Moita

E-Mail Website
Guest Editor
1. CINAMIL—Centro de Investigação Desenvolvimento e Inovação da Academia Militar, Academia Militar, Instituto Universitário Militar, Rua Gomes Freire, 1169-203 Lisboa, Portugal
2. IN+—Center for Innovation, Technology and Policy Research, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
Interests: energy; solar pannels; cooling; nanofluids; microfluidics; biofluids
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Liquid–solid interfacial phenomena play a paramount role in numerous applications within various fields, from industrial cooling to biomedical applications. Liquid cooling processes, particularly those relying on liquid phase change, strongly depend on the surface properties. Within this scope, great effort has been put toward the development of complex surfaces with custom-made topographic and wetting characteristics to enhance heat and mass transfer. Major applications address pool and flow boiling heat transfer enhancement at both the macro and micro scale, as well as biomedical applications in so-called labs-on-chips. While significant advances in micro-and nano-fabrication techniques have allowed the development of numerous strategies for the manufacturing of complex surfaces with custom-made wetting properties, the accurate description of the governing transport phenomena and of the appropriate wetting models has not yet been achieved and still requires significant numerical and experimental work.
In this context, this Special Issue mainly covers original research and studies related to the above-mentioned topics, including, but not limited to, pool and flow boiling heat transfer on complex and/or porous surfaces; droplet/wall interactions on complex surfaces; theoretical or experimental description of wetting models; and liquid-solid transport phenomena on superhydrophilic, superhydrophobic, and biphilic surfaces. Symmetric and asymmetric mechanisms can be explored. According to the journal’s aim and scope, manuscripts regarding research proposals and research ideas will be particularly welcomed. Hence, innovative ideas such as bioinspired surfaces and applications to biomedical (lab-on-chip) systems are also welcome. Papers selected for this Special Issue will be subjected to a rigorous peer review focusing on quick and wide dissemination of the work.

Prof. Dr. António Luis N. Moreira
Dr. Ana Sofia Moita
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. 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 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

  • complex surfaces
  • porous surfaces
  • pool boiling
  • flow boiling
  • macro-to-micro scale
  • nanoscale
  • heat transfer enhancement
  • interfacial phenomena
  • symmetric asymmetric wetting processes

Published Papers (5 papers)

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Research

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16 pages, 4483 KiB  
Article
Interfacial Surface Properties of Compression Moulded Hydrolysed Polyvinyl Acetate (PVAc) Using Different Release Materials
by Kathryn A. Whitehead, Mohsin Amin, Ted Deisenroth, Christopher M. Liauw and Joanna Verran
Symmetry 2022, 14(10), 2063; https://0-doi-org.brum.beds.ac.uk/10.3390/sym14102063 - 03 Oct 2022
Viewed by 1011
Abstract
Understanding the effect surface production has on polymer properties is important in the design of advanced materials. The aim of this study was to determine how the moulding process affected the rate of hydrolysis and the topography, chemistry and physicochemistry of PVAc moulded, [...] Read more.
Understanding the effect surface production has on polymer properties is important in the design of advanced materials. The aim of this study was to determine how the moulding process affected the rate of hydrolysis and the topography, chemistry and physicochemistry of PVAc moulded, hydrolysed surfaces. Three different mould surface materials were used to produce compression moulded PVAc sheets which were treated with aqueous NaOH at a range of concentrations. The Textile moulded sheet demonstrated the best hydrolysis results. The topography of the moulded sheets was transferred to the surfaces and the Kapton release sheet was visually smooth at lower magnification and demonstrated some pitting at higher magnification. The Teflon surface had features transferred from the coated stainless steel at lower magnifications and linear features at higher magnifications and the textile surface had a wrinkled appearance and irregularly spaced peaks. The release sheet used to mould the PVAc surfaces, affected the physicochemical parameters. The Kapton moulded surface demonstrated the most polar attributes and the Teflon surface the most dispersive. It was clear that the selection of the mould material had an influence on surface properties and hydrolysis of moulded PVAc. Such information is important for engineering design in industrial processes. Full article
(This article belongs to the Special Issue Liquid-Solid Interfacial Phenomena on Complex Surfaces)
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19 pages, 6335 KiB  
Article
Mixed Convection of Silica–Molybdenum Disulphide/Water Hybrid Nanoliquid over a Rough Sphere
by Prabhugouda M. Patil, Hadapad F. Shankar and Mikhail A. Sheremet
Symmetry 2021, 13(2), 236; https://0-doi-org.brum.beds.ac.uk/10.3390/sym13020236 - 31 Jan 2021
Cited by 47 | Viewed by 2185
Abstract
A steady combined convective motion over a rough sphere with hybrid nanoparticles is analyzed. We have considered silica (SiO2) and molybdenum disulphide (MoS2) nanoadditives which are added in H2O to form MoS2–SiO2/H2 [...] Read more.
A steady combined convective motion over a rough sphere with hybrid nanoparticles is analyzed. We have considered silica (SiO2) and molybdenum disulphide (MoS2) nanoadditives which are added in H2O to form MoS2–SiO2/H2O hybrid nanoliquid. The partial differential equations describing the boundary layer flow characteristics are reduced into non-dimensional form with appropriate non-similar reduction. It should be noted that the governing equations have been written using the conservation laws of mass, momentum and energy. These considered equations allow simulating the analyzed phenomenon using numerical techniques. Implicit finite difference approximation and technique of Quasilinearization are utilized to work out the dimensionless control equations. The influence of various physical characteristics included in this challenge, such as the velocity fields and temperature patterns, is investigated. The study of border gradients is performed, which deals with the skin friction and energy transport strength. The plots of computational outcomes are considered, which ascertain that velocity distribution reduces, whilst coefficient of friction at the surface, energy transport strength and temperature distribution augment for enhancing values of hybrid nanofluid. For enhancing magnitude of combined convection parameter, dimensionless velocity distribution, surface drag coefficient and energy transport strength enhance, while temperature distribution diminishes. High impact of hybrid nanofluid on energy transport strength and the surface friction compared to the host liquid and mono nanofluid in presence/absence of surface roughness is shown. Velocity distribution enhances for rising values of velocity ratio parameter. Enhancing values of frequency parameter rise the friction at the surface and energy transport strength. It is also examined that the hybrid nanofluid has a maximum temperature for the blade-shaped nanoparticles and has a low temperature for the spherical-shaped nanoparticles. Full article
(This article belongs to the Special Issue Liquid-Solid Interfacial Phenomena on Complex Surfaces)
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24 pages, 1669 KiB  
Article
Simulation of Boiling Heat Transfer at Different Reduced Temperatures with an Improved Pseudopotential Lattice Boltzmann Method
by Matheus dos Santos Guzella, Luiz Eduardo Czelusniak, Vinícius Pessoa Mapelli, Pablo Fariñas Alvariño, Gherhardt Ribatski and Luben Cabezas-Gómez
Symmetry 2020, 12(8), 1358; https://0-doi-org.brum.beds.ac.uk/10.3390/sym12081358 - 14 Aug 2020
Cited by 6 | Viewed by 2420
Abstract
The pseudopotential Lattice Boltzmann Method has attracted much attention in the recent years for the simulation of boiling heat transfer. Many studies have been published recently for the simulation of the bubble cycle (nucleation, growth and departure from a heated surface). This paper [...] Read more.
The pseudopotential Lattice Boltzmann Method has attracted much attention in the recent years for the simulation of boiling heat transfer. Many studies have been published recently for the simulation of the bubble cycle (nucleation, growth and departure from a heated surface). This paper puts forward two-dimensional simulations of bubble nucleation, growth and departure using an improved pseudopotential Lattice Boltzmann Model from the literature at different reduced temperatures, Tr=0.76 and Tr=0.86. Two different models using the Bhatnagar–Gross–Krook (BGK) and the Multiple-Relaxation-Time (MRT) collision operators with appropriate forcing schemes are used. The results for pool boiling show that the bubbles exhibit axial symmetry during growth and departure. Numerical results of departure diameter and release period for pool boiling are compared against empirical correlations from the literature by varying the gravitational acceleration. Reasonable agreement is observed. Nucleate boiling trends with heat flux are also captured by the simulations. Numerical results of flow boiling simulations are compared by varying the Reynolds number for both reduced temperatures with the MRT model. It was found that the departure diamenter and release period decreases with the increase of the Reynolds number. These results are a direct effect of the drag force. Proper conclusions are commented at the end of the paper. Full article
(This article belongs to the Special Issue Liquid-Solid Interfacial Phenomena on Complex Surfaces)
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12 pages, 1941 KiB  
Article
Hybrid Chemical Enhanced Oil Recovery Techniques: A Simulation Study
by Haiyan Zhou and Afshin Davarpanah
Symmetry 2020, 12(7), 1086; https://0-doi-org.brum.beds.ac.uk/10.3390/sym12071086 - 01 Jul 2020
Cited by 20 | Viewed by 2546
Abstract
Simultaneous utilization of surfactant and preformed particle gel (henceforth; PPG) flooding on the oil recovery enhancement has been widely investigated as a preferable enhanced oil recovery technique after the polymer flooding. In this paper, a numerical model is developed to simulate the profound [...] Read more.
Simultaneous utilization of surfactant and preformed particle gel (henceforth; PPG) flooding on the oil recovery enhancement has been widely investigated as a preferable enhanced oil recovery technique after the polymer flooding. In this paper, a numerical model is developed to simulate the profound impact of hybrid chemical enhanced oil recovery methods (PPG/polymer/surfactant) in sandstone reservoirs. Moreover, the gel particle conformance control is considered in the developed model after polymer flooding performances on the oil recovery enhancement. To validate the developed model, two sets of experimental field data from Daqing oil field (PPG conformance control after polymer flooding) and Shengli oil field (PPG-surfactant flooding after polymer flooding) are used to check the reliability of the model. Combination of preformed gel particles, polymers and surfactants due to the deformation, swelling, and physicochemical properties of gel particles can mobilize the trapped oil through the porous media to enhance oil recovery factor by blocking the high permeable channels. As a result, PPG conformance control plays an essential role in oil recovery enhancement. Furthermore, experimental data of PPG/polymer/surfactant flooding in the Shengli field and its comparison with the proposed model indicated that the model and experimental field data are in a good agreement. Consequently, the coupled model of surfactant and PPG flooding after polymer flooding performances has led to more recovery factor rather than the basic chemical recovery techniques. Full article
(This article belongs to the Special Issue Liquid-Solid Interfacial Phenomena on Complex Surfaces)
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Review

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26 pages, 2979 KiB  
Review
Nanofluids for the Next Generation Thermal Management of Electronics: A Review
by Ana Moita, António Moreira and José Pereira
Symmetry 2021, 13(8), 1362; https://0-doi-org.brum.beds.ac.uk/10.3390/sym13081362 - 27 Jul 2021
Cited by 28 | Viewed by 6744
Abstract
Nowadays, the thermal management of electronic components, devices and systems is one of the most important challenges of this technological field. The ever-increasing miniaturization also entails the pressing need for the dissipation of higher power energy under the form of heat per unit [...] Read more.
Nowadays, the thermal management of electronic components, devices and systems is one of the most important challenges of this technological field. The ever-increasing miniaturization also entails the pressing need for the dissipation of higher power energy under the form of heat per unit of surface area by the cooling systems. The current work briefly describes the use on those cooling systems of the novel heat transfer fluids named nanofluids. Although not intensively applied in our daily use of electronic devices and appliances, the nanofluids have merited an in-depth research and investigative focus, with several recently published papers on the subject. The development of this cooling approach should give a sustained foothold to go on to further studies and developments on continuous miniaturization, together with more energy-efficient cooling systems and devices. Indeed, the superior thermophysical properties of the nanofluids, which are highlighted in this review, make those innovative fluids very promising for the aforementioned purpose. Moreover, the present work intends to contribute to the knowledge of the nanofluids and its most prominent results from the typical nanoparticles/base fluid mixtures used and combined in technical and functional solutions, based on fluid-surface interfacial flows. Full article
(This article belongs to the Special Issue Liquid-Solid Interfacial Phenomena on Complex Surfaces)
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