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MHD Nanofluid Flow Past a Rotating Disk with Thermal Radiation in the Presence of Aluminum and Titanium Alloy Nanoparticles

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Abstract:

The effects of thermal and exponential space dependent heat sources (THS and ESHS) on magneto-nanoliquid flow across a rotating disk with uniform stretching rate along radial direction are scrutinized in this communication. H2O based nanoliquids containing aluminium (AA 7075) and titanium (Ti6Al4V) alloy nanoparticles are considered. The AA7075 is made up of 90% Al, 5-6% Zn, 2-3% Mg, 1-2% Cu with additives such as Fe, Mn and Si etc. The flow is driven due to rotating disk with uniform stretching of the disk. Impacts of Joule and viscous heating are also deployed. The multidegree ordinary differential equations are formed via Von Karman transformations. The obtained non-linear BVP is solved by Runge-Kutta-Fehlberg based shooting approach (RKFS). Graphical illustrations depict the impacts of influential parameters on flow fields. The skin friction and Nusselt number are also calculated. Results pointed out that the thermal boundary layer growth stabilizes due to the influence of ESHS aspect. Velocities of nanofluid are superior than that of nanoliquid. Furthermore, the thermal performance of base liquid is outstanding when we added titanium alloy nanoparticles in comparison with aluminium alloy nanoparticles.

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Periodical:

Defect and Diffusion Forum (Volume 384)

Pages:

69-79

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.384.69

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Online since:

May 2018

Authors:

Oluwole Daniel Makinde*, Basavarajappa Mahanthesh, Bijjanal Jayanna Gireesha, N.S. Shashikumar, R.L. Monaledi, M.S. Tshehla

Keywords:

Aluminum Alloy Nanoparticles, Heat Source, Joule Heating, MHD, Nanofluid, Rotating Disk, Thermal Radiation, Titanium Alloy Nanoparticles

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* - Corresponding Author

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