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Effects of Cu–Ag hybrid nanoparticles on the momentum and thermal boundary layer flow over the wedge
Department of Mathematics, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering. Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
Department of Mathematics, Sukkur Institute of Business Administration, Sindh, Pakistan.
Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, China.
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2019 (English)In: Proceedings of the Institution of mechanical engineers. Part E, journal of process mechanical engineering, ISSN 0954-4089, E-ISSN 2041-3009, Vol. 233, no 5, p. 1128-1136Article in journal (Refereed) Published
Abstract [en]

In this work, the effects of hybrid nanoparticles on the momentum and thermal boundary layers as well as flow characteristics and thermal performance of the hybrid nanofluid are investigated over the wedge. The fluid in the enclosure is water containing hybrid nanoparticles Cu–Ag. The physical model of homogenous hybrid nanofluid is derived using the elementary equations of thermo-hydrodynamic and co-relation's model of a mixture that supports the effective physical features. The results are calculated to measure the effects of nanoparticle concentration on thermal and momentum boundary layers and displayed in graphs for discussions. In addition, the effects of nanoparticles concentration and different compositions of hybrid nanoparticles on temperature and velocity profiles, physical properties, skin friction, and convective heat transfer coefficient are deliberated through graphs and tables. To check its heat transfer performance, a comparison of hybrid nanofluid is made between the base fluid and single material nanofluids. It is found that the efficiency of hybrid nanofluids as a heat transfer fluid is much more than conventional fluids or single nanoparticles-based nanofluids. These results in terms of boundary layers phenomena, heat transfer performance, and temperature and velocity profiles under hybrid nanomaterial could help chemical engineers to design the critical equipment in a process industry such as heat exchangers and pumps and others.

Place, publisher, year, edition, pages
Sage Publications, 2019. Vol. 233, no 5, p. 1128-1136
Keywords [en]
Hybrid nanofluid, thermal boundary layer, momentum boundary layer, heat transfer performance, flow characteristics
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-74911DOI: 10.1177/0954408919844668Scopus ID: 2-s2.0-85064940518OAI: oai:DiVA.org:ltu-74911DiVA, id: diva2:1329330
Note

Validerad;2019;Nivå 2;2019-09-11 (johcin)

Available from: 2019-06-24 Created: 2019-06-24 Last updated: 2019-09-11Bibliographically approved

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Faisal, Abrar

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