Abstract
We present a research for the MHD Marangoni boundary layer flow and heat transfer in pseudo-plastic power law nanofluids over a porous medium driven by temperature gradient. A variable magnetic field is considered. Four different types of nanoparticles, copper, aluminum oxide, copper oxide, and titanium oxide are considered with pseudo-plastic power-law carboxy methyl cellulose (CMC)-water used as base fluids. A generalized Fourier law proposed by Zheng for varying thermal conductivity of nanofluids is taken into account, and the surface tension is assumed a quadratic function of the temperature. The governing partial differential equations (PDEs) are formulated, and similarity solutions are obtained numerically using shooting technique combined with Runge–Kutta iteration program and Newton’s scheme. The effects of various physical parameters on horizontal velocity component and temperature curves are discussed and graphically illustrated in details.
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The research was supported by the Scientific Research Funds of Huaqiao University (No. 14BS310) and the National Natural Science Foundation of China (Nos. 51276014 and 51476191).
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Lin, Y., Zheng, L. & Zhang, X. MHD Marangoni boundary layer flow and heat transfer of pseudo-plastic nanofluids over a porous medium with a modified model. Mech Time-Depend Mater 19, 519–536 (2015). https://doi.org/10.1007/s11043-015-9276-6
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DOI: https://doi.org/10.1007/s11043-015-9276-6