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Boundary Layer Flow and Heat Transfer of Nanofluid Over Exponential Stretching Sheet with Effect of Slip and Nonlinear Thermal Radiation

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The boundary layer flow, heat and mass transfer of a nanofluid with boundary slip condition for velocity, thermal and solutal slip, and nonlinear thermal radiation has been investigated numerically over an exponential stretching sheet with suction. The profiles for the velocity, temperature and nanoparticle concentration depends on parameters viz. temperature ratio parameter w , radiation parameter Nr, suction parameter s, velocity slip parameter λ, thermal slip parameter δ, concentration slip parameter α, Prandtl number Pr, Lewis number Le, Brownian motion parameter Nb and thermophoresis parameter Nt. Similarity transformation is used to convert the governing non-linear boundary-layer equations into coupled higher order non-linear ordinary differential equations. These equations are numerically solved by using an implicit finite difference method known as Keller-Box method. An analysis has been carried out to reveals the effects of governing parameters corresponding to various physical conditions. Numerical results and Graphical representation are obtained for distributions of velocity, temperature and concentration, as well as, for the skin friction, local Nusselt number and local Sherwood number for several values of governing parameters. The result reveals that velocity decreases with increase of velocity slip, suction. Temperature decreases with the increase of thermal slip, suction but increases with temperature ratio parameter as well as radiation parameter. Nanoprticle concentration decreases with increase of concentration slip, suction. A comparison with previous results available in the literature has been done and we found a good conformity with it. The numerical values of skin friction, Nusselt number and Sherwood number are presented in tables.
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Keywords: EXPONENTIAL STRETCHING SHEET; NANOFLUID; NONLINEAR THERMAL RADIATION; SLIP CONDITIONS; SUCTION

Document Type: Research Article

Publication date: June 1, 2017

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  • Journal of Nanofluids (JON) is an international multidisciplinary peer-reviewed journal covering a wide range of research topics in the field of nanofluids and fluid science. It is an ideal and unique reference source for scientists and engineers working in this important and emerging research field of science, engineering and technology. The journal publishes full research papers, review articles with author's photo and short biography, and communications of important new findings encompassing the fundamental and applied research in all aspects of science and engineering of nanofluids and fluid science related developing technologies.
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