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A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles

In this paper, a common and widely used micro-heat sink (H/S) was redesigned and simulated using computational fluid dynamics methods. This H/S has a large number of microchannels in which the walls are wavy (wavy microchannel heat sink: WMCHS). To improve cooling, two ([Formula: see text] and [Form...

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Detalles Bibliográficos
Autores principales: Khetib, Yacine, Abo-Dief, Hala M., Alanazi, Abdullah K., Sajadi, S. Mohammad, Sharifpur, Mohsen, Meyer, Josua P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540342/
https://www.ncbi.nlm.nih.gov/pubmed/34683243
http://dx.doi.org/10.3390/mi12101192
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author Khetib, Yacine
Abo-Dief, Hala M.
Alanazi, Abdullah K.
Sajadi, S. Mohammad
Sharifpur, Mohsen
Meyer, Josua P.
author_facet Khetib, Yacine
Abo-Dief, Hala M.
Alanazi, Abdullah K.
Sajadi, S. Mohammad
Sharifpur, Mohsen
Meyer, Josua P.
author_sort Khetib, Yacine
collection PubMed
description In this paper, a common and widely used micro-heat sink (H/S) was redesigned and simulated using computational fluid dynamics methods. This H/S has a large number of microchannels in which the walls are wavy (wavy microchannel heat sink: WMCHS). To improve cooling, two ([Formula: see text] and [Formula: see text]) water-based nanofluids (NFs) were used as cooling fluids, and their performance was compared. For this purpose, studies were carried out at three Reynolds numbers (Re) of 500, 1000, and 1500 when the volume percent (φ) of the nanoparticles (NPs) was increased to 2%. The mixture two-phase (T-P) model was utilized to simulate the NFs. Results showed that using the designed WMCHS compared to the common H/S reduces the average and maximum temperatures (T-Max) up to 2 °C. Moreover, using the [Formula: see text] NF is more suitable in terms of WMCHS temperature uniformity as well as its thermal resistance compared to the [Formula: see text] NF. Increasing the φ is desirable in terms of temperature, but it enhances the pumping power (PP). Besides, the Figure of Merit (FOM) was investigated, and it was found that the value is greater at a higher volume percentage.
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spelling pubmed-85403422021-10-24 A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles Khetib, Yacine Abo-Dief, Hala M. Alanazi, Abdullah K. Sajadi, S. Mohammad Sharifpur, Mohsen Meyer, Josua P. Micromachines (Basel) Article In this paper, a common and widely used micro-heat sink (H/S) was redesigned and simulated using computational fluid dynamics methods. This H/S has a large number of microchannels in which the walls are wavy (wavy microchannel heat sink: WMCHS). To improve cooling, two ([Formula: see text] and [Formula: see text]) water-based nanofluids (NFs) were used as cooling fluids, and their performance was compared. For this purpose, studies were carried out at three Reynolds numbers (Re) of 500, 1000, and 1500 when the volume percent (φ) of the nanoparticles (NPs) was increased to 2%. The mixture two-phase (T-P) model was utilized to simulate the NFs. Results showed that using the designed WMCHS compared to the common H/S reduces the average and maximum temperatures (T-Max) up to 2 °C. Moreover, using the [Formula: see text] NF is more suitable in terms of WMCHS temperature uniformity as well as its thermal resistance compared to the [Formula: see text] NF. Increasing the φ is desirable in terms of temperature, but it enhances the pumping power (PP). Besides, the Figure of Merit (FOM) was investigated, and it was found that the value is greater at a higher volume percentage. MDPI 2021-09-30 /pmc/articles/PMC8540342/ /pubmed/34683243 http://dx.doi.org/10.3390/mi12101192 Text en © 2021 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
Khetib, Yacine
Abo-Dief, Hala M.
Alanazi, Abdullah K.
Sajadi, S. Mohammad
Sharifpur, Mohsen
Meyer, Josua P.
A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles
title A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles
title_full A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles
title_fullStr A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles
title_full_unstemmed A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles
title_short A Computational Fluid Dynamic Study on Efficiency of a Wavy Microchannel/Heat Sink Containing Various Nanoparticles
title_sort computational fluid dynamic study on efficiency of a wavy microchannel/heat sink containing various nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540342/
https://www.ncbi.nlm.nih.gov/pubmed/34683243
http://dx.doi.org/10.3390/mi12101192
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