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5.1
2.8
Journals
Processes
Special Issues
Flow, Heat and Mass Transfer in Energy Utilization
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Flow, Heat and Mass Transfer in Energy Utilization

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (31 January 2025) | Viewed by 4858

Special Issue Editors

Dr. Bin Liu

E-Mail Website
Guest Editor
School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
Interests: finite element methods; fluid–structure interaction; heat and mass transfer; renewable energy
Prof. Dr. Zhaosheng Yu

E-Mail Website
Guest Editor
Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
Interests: fictitious domain methods; numerical methods; particle-laden flows; turbulent flows; fluid–structure interaction
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Hongjun Zhu

E-Mail Website
Guest Editor
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
Interests: flow-induced vibration; vortex-induced vibration; flow control; flow assurance; fluid–structure interaction
Special Issues, Collections and Topics in MDPI journals
Dr. Guojun Li

E-Mail Website
Guest Editor
School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710048, China
Interests: fluid–structure interaction; aeroelasticity; flow control

Special Issue Information

Dear Colleagues,

As the global demand for energy continues its upward trajectory, the imperative to develop sustainable and efficient energy utilization processes has become increasingly pressing. In this context, the understanding and optimization of transfer processes, encompassing fluid dynamics, heat transfer, and mass transport, emerge as pivotal elements of paramount importance in the pursuit of a cleaner and more sustainable energy landscape.

This Special Issue endeavors to explore new research in the realm of flow, heat, and mass transfer processes in energy utilization. Through a collection of diverse contributions, we seek to unravel the complexities existing in the strong coupling of fluid, heat, and mass transfer processes, offer insights into novel approaches, and provide a platform for discussions that will shape the future of energy utilization. By fostering collaboration and knowledge exchange, we aspire to contribute to a sustainable and resilient energy future that meets the needs of the present without compromising the needs of future generations.

Dr. Bin Liu
Prof. Dr. Zhaosheng Yu
Prof. Dr. Hongjun Zhu
Dr. Guojun Li
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. Processes 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

  • fluid–structure interaction
  • heat transfer
  • mass transfer
  • hydrodynamics instability
  • numerical methods
  • machine learning
  • renewable energy

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

Published Papers (4 papers)

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Research

25 pages, 8275 KiB  
Article
Numerical Analysis of Magnetohydrodynamic Convection in an Inclined Cavity with Three Fins and a Ternary Composition of Nanoparticles
by Huda Alfannakh
Processes 2024, 12(12), 2889; https://doi.org/10.3390/pr12122889 - 17 Dec 2024
Viewed by 807
Abstract
The natural convection heat transfer of a trihybrid nanofluid comprising Fe2O3, MoS2, and CuO nanoparticles dispersed in water (Fe2O3 + MoS2 + CuO/H2O) has been investigated within a cavity exposed to [...] Read more.
The natural convection heat transfer of a trihybrid nanofluid comprising Fe2O3, MoS2, and CuO nanoparticles dispersed in water (Fe2O3 + MoS2 + CuO/H2O) has been investigated within a cavity exposed to a uniform magnetic field. Three cold fins were strategically positioned on the top, right, and left walls of the enclosure. The study employs numerical simulations conducted using a custom-developed FORTRAN code. The computational approach integrates the finite volume method and full multigrid acceleration to solve the coupled governing equations for continuity, momentum, energy, and entropy generation, along with the associated boundary conditions. Prior to obtaining the results, a meticulous parameterization process was undertaken to accurately capture the fluid dynamics and thermal behavior characteristic of this geometric configuration. The findings underscored the key parameters’ significant impact on the flow structure and thermal performance. The results revealed that natural convection is more dominant at high Rayleigh and low Hartmann numbers, leading to higher Nusselt numbers and stronger dependence on the tilt angle α. Moreover, the optimal heat transfer conditions were obtained for the following parameters: Ha = 25, α = 45°, ϕ = 6%, and Ra = 106 with a rate of 4.985. This study offers valuable insights into achieving a balance between these competing factors by determining the optimal conditions for maximizing heat transfer while minimizing entropy generation. The findings contribute to enhancing the design of thermal systems that utilize magnetic nanofluids for efficient heat dissipation, making the research particularly relevant to advanced cooling technologies and compact thermal management solutions. Full article
(This article belongs to the Special Issue Flow, Heat and Mass Transfer in Energy Utilization)
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16 pages, 6852 KiB  
Article
Numerical Simulation of the Melting of Solid Particles in Thermal Convection with a Modified Immersed Boundary Method
by Yang Shi, Xueming Shao, Jian Xu and Zhaosheng Yu
Processes 2024, 12(11), 2533; https://doi.org/10.3390/pr12112533 - 13 Nov 2024
Viewed by 764
Abstract
A new immersed boundary method is proposed for the numerical simulation of the melting of solid particles in its own liquid at a high temperature. The main feature of the new method is the use of the modified direct-forcing immersed boundary method for [...] Read more.
A new immersed boundary method is proposed for the numerical simulation of the melting of solid particles in its own liquid at a high temperature. The main feature of the new method is the use of the modified direct-forcing immersed boundary method for the solution of the flow field and the sharp-interface immersed boundary method for the temperature field. The accuracy of the proposed method is validated via three problems: the sedimentation of a non-melting particle, the melting of a fixed particle under mixed thermal convection, and the sedimentation of a melting particle. The method is then applied to the investigation of the effects of various parameters, the particle interactions and the particle shape on the particle melting time. A correlation for the melting time of a circular particle in forced thermal convection is established as a function of the Reynolds, Prandtl, and Stefan numbers. The melting time of a particle in mixed thermal convection first increases and then decreases, as the Grashof number increases. The effects of the particle interactions on the melting time are complicated due to the natural convection between two particles. The sufficiently strong natural convection can even render the downstream particle melt faster than the single particle. For the same particle area, the elliptic particle with the aspect ratio being around 1.4 melts most slowly. Full article
(This article belongs to the Special Issue Flow, Heat and Mass Transfer in Energy Utilization)
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17 pages, 3288 KiB  
Article
Simulation and Experimental Verification of Pipeline Particle Deposition Based on Ellipsoidal Assumption
by Chenchen Niu, Zhen Zhou, Jia Qi and Xu Yang
Processes 2024, 12(8), 1610; https://doi.org/10.3390/pr12081610 - 31 Jul 2024
Viewed by 1162
Abstract
The problem of particle clogging in a conveying pipeline in thin-phase pneumatic transportation is essentially the effect of the particle-deposition mechanism in gas–solid two-phase flow. This paper presents a particle-deposition model of gas–solid two-phase flow based on the ellipsoid hypothesis, and a fast-calculation [...] Read more.
The problem of particle clogging in a conveying pipeline in thin-phase pneumatic transportation is essentially the effect of the particle-deposition mechanism in gas–solid two-phase flow. This paper presents a particle-deposition model of gas–solid two-phase flow based on the ellipsoid hypothesis, and a fast-calculation method of material particle-deposition efficiency in industry based on the tabular-assigned drag-correction coefficient of the particle ellipsoid-shape parameter Ar and incoming flow angle ϕ. A simulation comparison of spherical particles under the same pneumatic transport conditions and experimental verification based on the self-built particle deposition system are given. The validity of the model and the accuracy of the algorithm are verified. This provides a feasible simulation and experimental scheme for the research of pneumatic-conveying technology in the industrial field. Full article
(This article belongs to the Special Issue Flow, Heat and Mass Transfer in Energy Utilization)
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20 pages, 8656 KiB  
Article
Performance Evaluation of a Double-Helical-Type-Channel Reinforced Heat Sink Based on Energy and Entropy-Generation Analysis
by Liyi He, Xue Hu, Lixin Zhang, Feng Chen and Xinwang Zhang
Processes 2024, 12(3), 598; https://doi.org/10.3390/pr12030598 - 17 Mar 2024
Cited by 1 | Viewed by 1201
Abstract
Heat-transfer enhancement and entropy generation were investigated for a double-helical-type-channel heat sink with different rib structures set on the upper wall. Based on available experimental data, a series of simulations with various turbulence models were conducted to find the best numerical model. Five [...] Read more.
Heat-transfer enhancement and entropy generation were investigated for a double-helical-type-channel heat sink with different rib structures set on the upper wall. Based on available experimental data, a series of simulations with various turbulence models were conducted to find the best numerical model. Five different rib structures were considered, which were diamond (FC-DR), rectangular (FC-RR), drop-shaped (FC-DSR), elliptic (FC-ER) and frustum (FC-FR). The research was carried out under turbulent flow circumstances with a Reynolds number range of 10,000–60,000 and a constant heat-flow density. The numerical results show that the thermal performance of the flow channel set with a rib structure is better than that of the smooth channel. FC-ER offers the lowest average temperature and the highest temperature uniformity, with a Nusselt number improvement percentage ranging from 15.80% to 30.77%. Overall, FC-ER shows the most excellent performance evaluation criteria and lowest augmentation entropy-generation number compared with the other reinforced flow channels. Full article
(This article belongs to the Special Issue Flow, Heat and Mass Transfer in Energy Utilization)
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