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Flow and heat transfer in a power-law fluid over a nonisothermal stretching sheet. (English) Zbl 1098.76531
Summary: A boundary layer analysis has been presented for the problem of flow and heat transfer from a power-law fluid to a continuous stretching sheet with variable wall temperature. A similarity transformation is applied to reduce the Navier-Stokes and energy equations, and the resulting system of nonlinear ordinary differential equations is solved using the expansion of Chebyshev polynomials. Parametric studies are performed to investigate the effects of non-Newtonian flow index, generalized Prandtl number, power-law surface temperature and surface mass transfer rate. The friction factor and heat transfer rate results exhibit strong dependence on the fluid parameters.
MSC:
76D10Boundary-layer theory, separation and reattachment, etc. (incompressible viscous fluids)
80A20Heat and mass transfer, heat flow