The combined effect of viscous heating and convective cooling on Couette flow and heat transfer characteristics of water base\nnanofluids containing Copper Oxide (CuO) and Alumina (Al2O3) as nanoparticles is investigated. It is assumed that the nanofluid\nflows in a channel between two parallel plates with the channel�s upper plate accelerating and exchange heat with the ambient\nsurrounding following the Newton�s law of cooling, while the lower plate is stationary and maintained at a constant temperature.\nUsing appropriate similarity transformation, the governingNavier-Stokes and the energy equations are reduced to a set of nonlinear\nordinary differential equations. These equations are solved analytically by regular perturbation method with series improvement\ntechnique and numerically by an efficientRunge-Kutta-Fehlberg integration technique coupled with shooting method.Theeffects of\nthe governing parameters on the dimensionless velocity, temperature, skin friction, pressure drop andNusselt number are presented\ngraphically, and discussed quantitatively.
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