Dtm-bf Method for the Flow and Heat Transfer over a Nonlinearly Stretching Sheet with Nanofluids

This paper investigates an analytical analysis for the flow and heat transfer in a viscous fluid over a nonlinear stretching sheet. The governing partial differential equations are transformed into coupled nonlinear differential equations by introducing a similarity transformation. The asymptotic analytical solutions are obtained by using differential transform method-basic functions (DTM-BF). Four types of nanofluids, namely Cu-water, Ag-water, 3 2O Al -water and 2 TiO -water were studied. The influence of the nanoparticle volume fraction  , the nonlinear stretching parameter n , Prandtl number Pr, Eckert number Ec and different nanoparticles on the velocity and temperature are discussed and shown graphically. The comparison with the numerical results is presented and it is found to be in excellent agreement. Key Wordsheat and mass transfer, asymptotic expansion, volume fraction influence, nanoparticle reaction