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Three-dimensional flow and heat transfer past a permeable exponentially stretching/shrinking sheet in a nanofluid. (English) Zbl 1442.80002

Summary: The three-dimensional flow and heat transfer of a nanofluid over a stretching/shrinking sheet is investigated. Numerical results are obtained using bvp4c in MATLAB. The results show nonunique solutions for the shrinking case. The effects of the stretching/shrinking parameter, suction parameter, Brownian motion parameter, thermophoresis parameter, and Lewis number on the local skin friction coefficient and the local Nusselt number are studied. Suction increases the solution domain. Furthermore, as the sheet is shrunk in the \(x\)-direction, suction increases the skin friction coefficient in the same direction while decreasing the skin friction coefficient in the \(y\)-direction. The local Nusselt number is consistently lower for higher values of thermophoresis parameter and Lewis number. On the other hand, the local Nusselt number increases as the Brownian motion parameter increases.

MSC:

80A19 Diffusive and convective heat and mass transfer, heat flow
76D10 Boundary-layer theory, separation and reattachment, higher-order effects

Software:

bvp4c; Matlab
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Full Text: DOI

References:

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