A molecular dynamics approach of the effect of thermal interfacial resistance and nanolayer on enhanced thermal conductivity of Al2O3-CO2 nanofluid

Show simple item record

dc.contributor.author Ahmed, Zeeshan
dc.contributor.author Bhargav, Atul
dc.coverage.spatial United States of America
dc.date.accessioned 2021-01-15T13:10:00Z
dc.date.available 2021-01-15T13:10:00Z
dc.date.issued 2021
dc.identifier.citation Ahmed, Zeeshan and Bhargav, Atul, “A molecular dynamics approach of the effect of thermal interfacial resistance and nanolayer on enhanced thermal conductivity of Al2O3-CO2 nanofluid”, Journal of Enhanced Heat Transfer, DOI: 10.1615/JEnhHeatTransf.2021037086, vol. 28, no. 2, pp. 41-56, 2021. en_US
dc.identifier.issn 1065-5131
dc.identifier.uri https://doi.org/10.1615/JEnhHeatTransf.2021037086
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/6205
dc.description.abstract Nanofluids have the solid-fluid interface which affects their thermal properties during heat transfer processes. In this study, nanolayer and thermal interfacial resistance (TIR) at the solid-fluid interface are discussed to determine their role in the enhancement of thermal conductivity of Al2O3-CO2 nanofluid. The current work focuses on molecular dynamics (MD) simulations to study the TIR and nanolayer formed of CO2 molecules around the Al2O3 nanoparticle (np) for supercritical and gaseous phases. The diameter of np (dNP) used in this study is between 2 and 5 nm to determine the diameter effect on thermal conductivity of nanofluid and on TIR. The current research talks about the comparison in both phases. The results show the impact of TIR is more with bigger diameters. Temperature and surface wettability (interaction strength) effect on thermal interfacial resistance shows that TIR decreases with increase in temperature and wettability, but at elevated temperatures, TIR does not depend on temperature. The monolayer and nanolayer are studied using density distribution, and the results show that monolayer is more uniform in case of smaller diameters with low TIR. However, the thermal conductivity is more extensive in case of larger dNP due to thick nanolayer formed around bigger np. Results show that the nanofluid with larger dNP are responsible for enhanced heat transfer due to thickened nanolayer, while TIR influence diminishes.
dc.description.statementofresponsibility by Zeeshan Ahmed and Atul Bhargav
dc.language.iso en_US en_US
dc.publisher Begell House en_US
dc.title A molecular dynamics approach of the effect of thermal interfacial resistance and nanolayer on enhanced thermal conductivity of Al2O3-CO2 nanofluid en_US
dc.type Article en_US
dc.relation.journal Journal of Enhanced Heat Transfer


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Digital Repository


Browse

My Account