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Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations

Pin-fins configurations have been investigated recently for different engineering applications and, in particular, for a cooling turbine. In the present study, we investigated the performance of three different pin-fins configurations: pin-fins forming a wavy mini-channel, pin-fins forming a straigh...

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Detalles Bibliográficos
Autores principales: Saghir, Mohamad Ziad, Rahman, Mohammad Mansur
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9228853/
https://www.ncbi.nlm.nih.gov/pubmed/35744569
http://dx.doi.org/10.3390/mi13060954
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author Saghir, Mohamad Ziad
Rahman, Mohammad Mansur
author_facet Saghir, Mohamad Ziad
Rahman, Mohammad Mansur
author_sort Saghir, Mohamad Ziad
collection PubMed
description Pin-fins configurations have been investigated recently for different engineering applications and, in particular, for a cooling turbine. In the present study, we investigated the performance of three different pin-fins configurations: pin-fins forming a wavy mini-channel, pin-fins forming a straight mini-channel, and a mini-channel without pin-fins considering water as the working fluid. The full Navier–Stokes equations and the energy equation are solved numerically using the finite element technique. Different flow rates are studied, represented by the Reynolds number in the laminar flow regime. The thermo-hydraulic performance of the three configurations is determined by examining the Nusselt number, the pressure drop, and the performance evaluation criterion. Results revealed that pin-fins forming a wavy mini-channel exhibited the highest Nusselt number, the lowest pressure drop, and the highest performance evaluation criterion. This finding is valid for any Reynolds number under investigation.
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spelling pubmed-92288532022-06-25 Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations Saghir, Mohamad Ziad Rahman, Mohammad Mansur Micromachines (Basel) Article Pin-fins configurations have been investigated recently for different engineering applications and, in particular, for a cooling turbine. In the present study, we investigated the performance of three different pin-fins configurations: pin-fins forming a wavy mini-channel, pin-fins forming a straight mini-channel, and a mini-channel without pin-fins considering water as the working fluid. The full Navier–Stokes equations and the energy equation are solved numerically using the finite element technique. Different flow rates are studied, represented by the Reynolds number in the laminar flow regime. The thermo-hydraulic performance of the three configurations is determined by examining the Nusselt number, the pressure drop, and the performance evaluation criterion. Results revealed that pin-fins forming a wavy mini-channel exhibited the highest Nusselt number, the lowest pressure drop, and the highest performance evaluation criterion. This finding is valid for any Reynolds number under investigation. MDPI 2022-06-16 /pmc/articles/PMC9228853/ /pubmed/35744569 http://dx.doi.org/10.3390/mi13060954 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Saghir, Mohamad Ziad
Rahman, Mohammad Mansur
Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations
title Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations
title_full Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations
title_fullStr Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations
title_full_unstemmed Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations
title_short Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations
title_sort thermo-hydraulic performance of pin-fins in wavy and straight configurations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9228853/
https://www.ncbi.nlm.nih.gov/pubmed/35744569
http://dx.doi.org/10.3390/mi13060954
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