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MHD FLOW OF CARREAU NANOFLUID EXPLORED USING CNT OVER A NONLINEAR STRETCHED SHEET

P.S.S. Nagalakshm, N. Vijaya
Frontiers in Heat and Mass Transfer (FHMT) 14 - 4 (2020)


Abstract


In the present investigation is to magnetohydrodymaics (MHD) radiative flow of an incompressible steady flow of Carreau nanofluid explored with carbon nanotubes. The boundary layer flow and heat transfer to a Carreau nanofluid model over a non- linear stretching surface is introduced. The Carreau model, adequate for many non-Newtonian fluids is used to characterize the behavior of the fluids having shear thinning properties and fluids with shear thickening properties for numerical values of the power law exponent n. The modeled boundary layer conservation equations are converted to non-linear coupled ordinary differential equations by a suitable transformation. Numerical solutions of the resulting equations are obtained by using the Runge-Kutta method along with shooting technique. This analysis reveals many important physical aspects of flow and heat transfer. Computations are performed for different values of the stretching parameter(m),the Weissenberg number (we) and the Prandtl number (Pr).The obtained results show that for shear thinning fluid the fluid velocity is depressed by the Weissenberg number while opposite behavior for the shear thickening fluid is observed. A comparison with previously published data in limiting cases is performed and they are in excellent agreement.

 


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DOI: http://dx.doi.org/10.5098/hmt.14.4

ISSN: 2151-8629