Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies

The presented study focuses on evaluating the mixing properties of structures derived from the so-called sheet-gyroid geometry and their modifications as advanced mixing elements in renewable energy technologies. Using numerical simulations based on computational fluid dynamics (CFD), the hydrodynam...

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Main Authors: Martin Beer, Radim Rybár
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Energies
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Online Access:https://www.mdpi.com/1996-1073/18/9/2265
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author Martin Beer
Radim Rybár
author_facet Martin Beer
Radim Rybár
author_sort Martin Beer
collection DOAJ
description The presented study focuses on evaluating the mixing properties of structures derived from the so-called sheet-gyroid geometry and their modifications as advanced mixing elements in renewable energy technologies. Using numerical simulations based on computational fluid dynamics (CFD), the hydrodynamic characteristics of the basic sheet-gyroid structure and five geometric modifications were analyzed under laminar flow conditions simulating the mixing of water and ethylene glycol. The evaluation was conducted using the parameters mixing index and performance index, which express the efficiency of fluid homogenization and its associated energy demands. The results show that all tested geometries significantly improve the degree of mixing compared to an empty channel. The highest concentration homogeneity and best energy efficiency were achieved by the twisted sheet-gyroid structure. This geometric modification exhibits the highest value of the performance index, confirming its ability to achieve excellent mixing with minimal pressure losses. The results of the study demonstrated that, despite similar hydraulic losses among some of the structures, their fluid mixing performance differs, which highlights the importance of targeted geometric design of sheet-gyroid structures. These findings are essential for the design of efficient mixers in technological applications where intensive mixing combined with minimal energy consumption is a critical factor.
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spelling doaj-art-9e12d68a78804e3083e8685ee42fa96e2025-08-20T01:49:11ZengMDPI AGEnergies1996-10732025-04-01189226510.3390/en18092265Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy TechnologiesMartin Beer0Radim Rybár1Institute of Earth Sources, Faculty of Mining, Ecology, Process Technologies and Geotechnology, Technical University of Košice, Letná 9, 042 00 Košice, SlovakiaInstitute of Earth Sources, Faculty of Mining, Ecology, Process Technologies and Geotechnology, Technical University of Košice, Letná 9, 042 00 Košice, SlovakiaThe presented study focuses on evaluating the mixing properties of structures derived from the so-called sheet-gyroid geometry and their modifications as advanced mixing elements in renewable energy technologies. Using numerical simulations based on computational fluid dynamics (CFD), the hydrodynamic characteristics of the basic sheet-gyroid structure and five geometric modifications were analyzed under laminar flow conditions simulating the mixing of water and ethylene glycol. The evaluation was conducted using the parameters mixing index and performance index, which express the efficiency of fluid homogenization and its associated energy demands. The results show that all tested geometries significantly improve the degree of mixing compared to an empty channel. The highest concentration homogeneity and best energy efficiency were achieved by the twisted sheet-gyroid structure. This geometric modification exhibits the highest value of the performance index, confirming its ability to achieve excellent mixing with minimal pressure losses. The results of the study demonstrated that, despite similar hydraulic losses among some of the structures, their fluid mixing performance differs, which highlights the importance of targeted geometric design of sheet-gyroid structures. These findings are essential for the design of efficient mixers in technological applications where intensive mixing combined with minimal energy consumption is a critical factor.https://www.mdpi.com/1996-1073/18/9/2265sheet-gyroidfluids mixingmixing indexCFD analysis
spellingShingle Martin Beer
Radim Rybár
Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies
Energies
sheet-gyroid
fluids mixing
mixing index
CFD analysis
title Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies
title_full Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies
title_fullStr Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies
title_full_unstemmed Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies
title_short Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies
title_sort numerical investigation of sheet gyroid structure modifications for mixing application in renewable energy technologies
topic sheet-gyroid
fluids mixing
mixing index
CFD analysis
url https://www.mdpi.com/1996-1073/18/9/2265
work_keys_str_mv AT martinbeer numericalinvestigationofsheetgyroidstructuremodificationsformixingapplicationinrenewableenergytechnologies
AT radimrybar numericalinvestigationofsheetgyroidstructuremodificationsformixingapplicationinrenewableenergytechnologies