Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid
Because of extraordinary heat transfer capability, nanofluids have become a potential interest in engineering sectors. Despite being a multiphase fluid, nanofluids were treated as single phase fluids in many previous studies and comparison between single and two phase models was drawn. Ex...
Saved in:
Main Authors: | , |
---|---|
Format: | Article |
Language: | English English |
Published: |
Semarak Ilmu Publishing
2021
|
Subjects: | |
Online Access: | http://irep.iium.edu.my/94339/1/94339_Multiphase%20CFD%20investigation%20on%20convective.pdf http://irep.iium.edu.my/94339/6/94339_Multiphase%20CFD%20investigation%20on%20convective_SCOPUS.pdf http://irep.iium.edu.my/94339/ https://semarakilmu.com.my/journals/index.php/CFD_Letters/index https://doi.org/10.37934/cfdl.13.10.1124 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.iium.irep.94339 |
---|---|
record_format |
dspace |
spelling |
my.iium.irep.943392022-03-07T06:52:17Z http://irep.iium.edu.my/94339/ Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid Al Mahmud, Suaib Ismail, Ahmad Faris TA329 Engineering mathematics. Engineering analysis Because of extraordinary heat transfer capability, nanofluids have become a potential interest in engineering sectors. Despite being a multiphase fluid, nanofluids were treated as single phase fluids in many previous studies and comparison between single and two phase models was drawn. Examining nanofluids capability to augment heat transfer is one of the keys to utilize them properly in the field of thermofluids. However, theoptimal multiphase model to simulate nanofluids heat transfer enhancement is yet to be found out. In this study, the method of computational fluid dynamics has been used to simulate flow of water-Al2O3 nanofluid in a circular pipe in the purpose of identifying the best multiphase model to simulate heat transfer enhancement of nanofluids. Two multiphase models have been taken into account: Volume of Fluid and Mixture model. Three different volume fractions of nanoparticles in nanofluid have been tested for each of these models such as 1%,4% and 6% for highly turbulent flows where Reynolds number was ranged between 20000 to 80000. The standard k-ɛturbulence model has been employed to model the flow of nanofluid with the mentioned multiphase models in the present study. The results have been carried out in forms of correlation between Re and Nu and have been compared with existing experimental results. The results showed that the heat transfer enhancement of nanofluid is mostly dominated by concentration of nanoparticles present in the fluid and suggested that Mixture model is suitable for predicting convective heat transfer enhancement of nanofluid for cases with high particle concentration though the necessity of further experimental study in some scopes has been detected. Semarak Ilmu Publishing 2021-10-31 Article PeerReviewed application/pdf en http://irep.iium.edu.my/94339/1/94339_Multiphase%20CFD%20investigation%20on%20convective.pdf application/pdf en http://irep.iium.edu.my/94339/6/94339_Multiphase%20CFD%20investigation%20on%20convective_SCOPUS.pdf Al Mahmud, Suaib and Ismail, Ahmad Faris (2021) Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid. CFD Letters, 13 (10). pp. 11-24. ISSN 2180-1363 https://semarakilmu.com.my/journals/index.php/CFD_Letters/index https://doi.org/10.37934/cfdl.13.10.1124 |
institution |
Universiti Islam Antarabangsa Malaysia |
building |
IIUM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
International Islamic University Malaysia |
content_source |
IIUM Repository (IREP) |
url_provider |
http://irep.iium.edu.my/ |
language |
English English |
topic |
TA329 Engineering mathematics. Engineering analysis |
spellingShingle |
TA329 Engineering mathematics. Engineering analysis Al Mahmud, Suaib Ismail, Ahmad Faris Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid |
description |
Because of extraordinary heat transfer capability, nanofluids have become a potential interest in engineering sectors. Despite being a multiphase fluid, nanofluids were treated as single phase fluids in many previous studies and comparison between single and two phase models was drawn. Examining nanofluids capability to augment heat transfer is one of the keys to utilize them properly in the field of thermofluids. However, theoptimal multiphase model to simulate nanofluids heat transfer enhancement is yet to be found out. In this study, the method of computational fluid dynamics has been used to simulate flow of water-Al2O3 nanofluid in a circular pipe in the purpose of identifying the best multiphase model to simulate heat transfer enhancement of nanofluids. Two multiphase models have been taken into account: Volume of Fluid and Mixture model. Three different volume fractions of nanoparticles in nanofluid have been tested for each of these models such as 1%,4% and 6% for highly turbulent flows where Reynolds number was ranged between 20000 to 80000. The standard k-ɛturbulence model has been employed to model the flow of nanofluid with the mentioned multiphase models in the present study. The results have been carried out in forms of correlation between Re and Nu and have been compared with existing experimental results. The results showed that the heat transfer enhancement of nanofluid is mostly dominated by concentration of nanoparticles present in the fluid and suggested that Mixture model is suitable for predicting convective heat transfer enhancement of nanofluid for cases with high particle concentration though the necessity of further experimental study in some scopes has been detected. |
format |
Article |
author |
Al Mahmud, Suaib Ismail, Ahmad Faris |
author_facet |
Al Mahmud, Suaib Ismail, Ahmad Faris |
author_sort |
Al Mahmud, Suaib |
title |
Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid |
title_short |
Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid |
title_full |
Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid |
title_fullStr |
Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid |
title_full_unstemmed |
Multiphase CFD investigation on convective heat transfer enhancement for turbulent flow of water-Al2O3Nanofluid |
title_sort |
multiphase cfd investigation on convective heat transfer enhancement for turbulent flow of water-al2o3nanofluid |
publisher |
Semarak Ilmu Publishing |
publishDate |
2021 |
url |
http://irep.iium.edu.my/94339/1/94339_Multiphase%20CFD%20investigation%20on%20convective.pdf http://irep.iium.edu.my/94339/6/94339_Multiphase%20CFD%20investigation%20on%20convective_SCOPUS.pdf http://irep.iium.edu.my/94339/ https://semarakilmu.com.my/journals/index.php/CFD_Letters/index https://doi.org/10.37934/cfdl.13.10.1124 |
_version_ |
1726791265034436608 |
score |
13.15806 |