Advances in Fluid Dynamics and Energy Systems: Applications of Symmetry and Asymmetry

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

Deadline for manuscript submissions: 30 April 2026 | Viewed by 610

Special Issue Editors


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Guest Editor
Facultad de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juarez S/N, California, Mexicali 21280, Mexico
Interests: numerical modeling; CFD; heat transfer; fluid mechanics; optimization

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Guest Editor
Department of Chemical Engineering, University of Guanajuato, Guanajuato 36050, Mexico
Interests: fluid dynamics; heat transfer; entropy; fuel cells; CFD simulation
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Guest Editor Assistant
Division of Life Sciences, University of Guanajuato, El Copal km 9, Guanajuato, Mexico
Interests: fluid dynamics; heat transfer; gas turbines; finite volume method; fluid mechanics; applied thermodynamics; turbomachinery; heat exchangers; CFD simulation; combustion analysis

Special Issue Information

Dear Colleagues,

Fluid dynamics, thermal sciences, and energy systems are key areas of research that continuously push the boundaries of science and engineering. Advances in computational techniques, particularly computational fluid dynamics (CFD), have provided researchers with powerful tools to analyze, simulate, and optimize complex systems across various applications, including fluid mechanics, heat transfer, and renewable energy.

This Special Issue, “Advances in Fluid Dynamics and Energy Systems: Applications of Symmetry and Asymmetry”, aims to gather cutting-edge studies that leverage numerical modeling, simulation, and experimental techniques to deepen our understanding of these fields. While symmetry and asymmetry can serve as valuable analytical perspectives—such as in geometric configurations, boundary conditions, or flow patterns—this issue welcomes research from a broad spectrum of topics and methodologies.

Topics of interest include, but are not limited to, the application of CFD in fluid mechanics, heat transfer, thermodynamics, and renewable energy systems. Contributions that explore the interplay between experimental data and numerical simulations are particularly encouraged as they bridge the gap between theory and real-world applications.

By fostering interdisciplinary contributions, this Special Issue seeks to advance the design, analysis, and optimization of engineering systems, providing both theoretical insights and practical solutions to modern challenges.

Dr. Oscar Alejandro López-Núñez
Dr. José de Jesús Ramírez-Minguela
Guest Editors

Dr. Jesus Alberto Crespo-Quintanilla
Guest Editor Assistant

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

  • computational fluid dynamics (CFD)
  • modeling of thermal and fluid dynamics
  • symmetry and asymmetry in thermal and fluid systems
  • heat and mass transfer
  • turbulent and laminar flows
  • multiphase flow analysis
  • numerical simulation and experimental validation
  • fluid–structure interaction
  • second law of thermodynamics and entropy generation
  • energy efficiency and optimization
  • renewable energy systems

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Published Papers (1 paper)

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Research

30 pages, 12183 KiB  
Article
Improving Hydrodynamics and Energy Efficiency of Bioreactor by Developed Dimpled Turbine Blade Geometry
by Anton Ruzhanskyi, Sergii Kostyk, Igor Korobiichuk and Vladislav Shybetskyi
Symmetry 2025, 17(5), 693; https://doi.org/10.3390/sym17050693 - 30 Apr 2025
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Abstract
The hydrodynamic efficiency of bioreactors is contingent upon the design of the impeller, particularly the blade geometry, which influences flow symmetry. This study evaluates the impact of dimpled surfaces on the blades of a turbine impeller on mixing processes. Investigations were conducted using [...] Read more.
The hydrodynamic efficiency of bioreactors is contingent upon the design of the impeller, particularly the blade geometry, which influences flow symmetry. This study evaluates the impact of dimpled surfaces on the blades of a turbine impeller on mixing processes. Investigations were conducted using simulations in ANSYS (2021R2) with the k-ε turbulence model and experiments measuring vortex funnel depth and power consumption at 247 rpm in an 11-L cylindrical vessel. Results indicate that dimples disrupt the rotational symmetry of the blades, increasing the volume-averaged flow velocity from 0.312 m/s to 0.321 m/s (a 2.9% increase); the maximum shear strain rate from 161 s−1 to 1442 s−1; and the turbulent vortex frequency from 183 s−1 to 290 s−1 (a 58% increase). The volume-averaged shear strain rate rose from 44 s−1 to 63 s−1 (a 43% improvement), and the vortex funnel depth increased from 44 mm to 50 mm (a 14% increase), indicating enhanced homogenization. This facilitates efficient processing of sensitive biological organisms, such as mycoplasmas, and more robust structures, including fungi and mycelium. However, power consumption increased by 4.5% (from 4.9 W to 5.1 W). Thus, disrupting symmetry with dimples intensifies hydrodynamic processes, enhancing mixing efficiency, but requires optimization to reduce energy costs, offering prospects for advancing biotechnological systems. Full article
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