UNSTEADY FLOW OF CASSON LIQUID FILM ON A STRETCHING SHEET WITH RADIATIVE HEAT TRANSFER

R. Krishanan, S. Maity and B. S. Dandapat
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R. Krishanan: Department of Basic and Applied Science, National Institute of Technology, Arunachal Pradesh, Yupia, Papumpare 791112, India
S. Maity: Department of Basic and Applied Science, National Institute of Technology, Arunachal Pradesh, Yupia, Papumpare 791112, India
B. S. Dandapat: #x2020;Air Control Engineering Pvt. Ltd., 21 Hemanta Bose Sarani, Kolkata 700001, India

Surface Review and Letters (SRL), 2020, vol. 27, issue 09, 1-16

Abstract: Flow of thin uniform Casson liquid film on an unsteady porous stretching sheet is studied both analytically and numerically. Combined effects of porosity, transverse magnetic field, thermal radiation, suction/injection, and thermocapillarity are considered for analysis. Results showed that the film thickness enhances with the Casson parameter, porosity parameter, Hartmann number and injection velocity but the opposite phenomenon is observed for suction velocity, thermocapillary and thermal radiation parameters. The behavior of the temperature field has been discussed with different physical parameters.

Keywords: Stretching sheet; thin film; Casson liquid; thermocapillarity; perturbation technique; free surface flow (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1142/S0218625X19502044

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