UNSTEADY THIN HYBRID NANOLIQUID FILM FLOW OVER A STRETCHABLE CYLINDER

Swatilekha Nag, Susanta Maity, Palky Handique and Utpal Kumar Saha
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Swatilekha Nag: Department of Mathematics, Pandit Deendayal Upadhyaya Mahavidyalaya, Behali-784184, Assam, India
Susanta Maity: ��Department of Basic and Applied Science, National Institute of Technology, Arunachal Pradesh, Jote, Papumpare 791113, Arunachal Pradesh, India
Palky Handique: ��Department of Basic and Applied Science, National Institute of Technology, Arunachal Pradesh, Jote, Papumpare 791113, Arunachal Pradesh, India
Utpal Kumar Saha: ��Department of Basic and Applied Science, National Institute of Technology, Arunachal Pradesh, Jote, Papumpare 791113, Arunachal Pradesh, India

Surface Review and Letters (SRL), 2022, vol. 29, issue 09, 1-13

Abstract: Unsteady thin hybrid nanoliquid film flow over a stretchable cylindrical surface is studied with the uniform thickness of hybrid nanoliquid. The combined effects of different nanoparticles like single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNTs) and copper (Cu) are considered for investigation in the presence of thermocapillarity, magnetic field and thermal radiation. The finite difference technique is applied to solve the governing set of nonlinear equations. Result showed that the hybrid nanoliquid film thinning rate declined with the higher volume fraction of different nanoparticles. The hybrid nanoliquid film thickness enhanced with higher values of radiation parameter and magnetic field. A curve Z=Zc is described within the hybrid nanoliquid film which separated total flow region in two zones. In one side of this curve, heat is transferred from the cylindrical surface to the hybrid nanoliquid film and in the other side, opposite scenario is observed.

Keywords: Stretchable cylinder; thin film; nanoliquids; carbon nanotubes (CNTs); heat transfer (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1142/S0218625X22501141

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