The two-dimensional flow of a thin nanoliquid film over an unsteady stretching sheet is studied under the assumption of planar film thickness when the sheet is heated/cooled along the stretching direction. The governing equations of momentum, energy are solved numerically by using finite difference method. The rate of film thinning decreases with the increase in the nanoparticle volume fraction. On the other hand, thermocapillary parameter influences the film thinning. A boundary within the film is delineated such that the sign of Tz changes depending on the stretching distance from the origin. Further the boundary for Tz > 0 enlarges when the volume fraction of the nanoparticle increases.
Thermocapillary Flow of a Thin Nanoliquid Film Over an Unsteady Stretching Sheet
National Institute of Technology,
Papumpare 791112, India
Sikkim Manipal Institute of Technology,
Majitar, East Sikkim,
Rangpo 737132, India
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received September 19, 2014; final manuscript received November 10, 2015; published online December 29, 2015. Assoc. Editor: Alan McGaughey.
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Maity, S., Ghatani, Y., and Dandapat, B. S. (December 29, 2015). "Thermocapillary Flow of a Thin Nanoliquid Film Over an Unsteady Stretching Sheet." ASME. J. Heat Transfer. April 2016; 138(4): 042401. https://doi.org/10.1115/1.4032146
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