Journal
JOURNAL OF NANOFLUIDS
Volume 10, Issue 4, Pages 538-551Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jon.2021.1804
Keywords
Arrhenius Activation Energy; Carbon Nanotubes; Linear Thermal Radiation; MHD; 3D Flow
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In this study, 3D hydro-magnetic flow of CNTs-EG/EO/H2O nanofluids over bi-directional stretchable surface was analyzed along with various factors. The study found that MWCNTs based nanofluids have a higher temperature gradient compared to SWCNTs based nanofluids, and engine oil-based nanofluids show the fastest rate of temperature distribution decline.
In the current study, 3D hydro-magnetic flow of CNTs-EG/EO/H2O nanofluids over bi-directional stretchable surface along with linear thermal radiation, modified Arrhenius, thermophoresis and Brownian diffusion are studied. The three base fluids i.e., EG (Ethylene Glycol), EO (Engine Oil) and H2O are considered for the analysis. For computing the effective viscosity and thermal conductivity of nanofluid, Wang's viscosity model and Hamilton-Crosser's thermal conductivity model have been used. The system of transformed non-linear ODEs is solved by shooting scheme. The comparison of heat transfer rate in CNTs-EG, CNTs-EO and CNTs-H2O nanofluids is depicted by bar diagrams. The outcomes of the present work showed that MWCNTs based nanofluids have a higher temperature gradient compared to that of SWCNTs based nanofluids. Moreover, temperature distribution corresponding to the engine oil-based nanofluids declined at a very high rate followed by ethylene glycol and water-based nanofluids, respectively.
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