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Processes 2019, 7(4), 181; https://doi.org/10.3390/pr7040181

Unsteady Nano-Liquid Spray with Thermal Radiation Comprising CNTs

1
Department of mathematics, City University of Science and Information Technology, Peshawar 25000, Pakistan
2
Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar 31952, Saudi Arabia
3
Department of Mathematics, Shaheed Benazir Bhutto Women University, Peshawar 25000, Pakistan
4
Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City 72915, Vietnam
5
Department of Mathematics, College of Arts and Sciences, Prince Sattam bin Abdulaziz University, Wadi Aldawaser 11991, Saudi Arabia
*
Author to whom correspondence should be addressed.
Received: 23 January 2019 / Revised: 11 March 2019 / Accepted: 14 March 2019 / Published: 28 March 2019
(This article belongs to the Special Issue Flow, Heat and Mass Transport in Microdevices)
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Abstract

Carbon nanotubes play a significant role in improving the thermal efficiency of common liquids. The objective of this research is to examine the thin film spray over the surface of a vertical tube through carbon nanotubes (CNTs) nanofluids. Processes for the preparation of the nanofluid and the stable dispersion of the CNTs in water were followed from the available experimental literature. The thickness of the spray pattern was kept variable to control the stability of the spray pattern and to accomplish the suitable heat transmission under the effects of a magnetic field. The pressure supply and rate of the spray were also calculated as a function of the liquid film thickness. The basic governing equations were transformed into nonlinear differential equations by using suitable similarity transformations. The numerical outcomes were obtained by means of the BVPh 2.0 package of the optimal scheme. The influences of the physical quantities like spray rate and variable thickness on the dimensionless velocity, temperature, pressure distribution, Nusselt number were investigated and the results are compared with the existing literature. The comparison was found to be in good agreement. The present results showed that the single-walled carbon nanotubes are more efficient in the enhancement of heat transfer rate compared to the multi-walled carbon nanotubes. View Full-Text
Keywords: SWCNTs/MWCNTs; thin film spray; stretching tube; magnetic field; spray rate; OHAM-BVPh 2.0 Package SWCNTs/MWCNTs; thin film spray; stretching tube; magnetic field; spray rate; OHAM-BVPh 2.0 Package
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Gul, T.; Khan, W.A.; Tahir, M.; Bilal, R.; Khan, I.; Nisar, K.S. Unsteady Nano-Liquid Spray with Thermal Radiation Comprising CNTs. Processes 2019, 7, 181.

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