Journal of Advances in Technology and Engineering Research
Details
Journal ISSN: 2414-4592
Article DOI: https://doi.org/10.20474/jater-6.1.2
Received: 6 September 2019
Accepted: 7 November 2019
Published: 12 February 2020
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  • Effect of temperature dependent viscosity on biomagnetic fluid flow and heat transfer over a nonlinear stretching sheet


Md. Jahangir Alam, Md. Ghulam Murtaza

Abstract

This investigated the flow and heat transfer of two-dimensional biomagnetic fluid (blood) flow over a non-linear stretching sheet in the presence of magnetic dipole. It is assumed that the magnetic field is sufficiently strong enough to saturate the ferrofluid, and a linear function of temperature difference can approximate variation of magnetization with temperature. The fluid viscosity is assumed to vary as an inverse linear function of the temperature. The governing boundary layer equations with boundary conditions are simplified to a couple of higherorder equations using the usual transformation. Numerical solutions are obtained by using the bvp4c function technique in MATLAB software. The acquired results are shown graphically and were examined for several values of the dimensionless parameters. It is observed that for different ferromagnetic interaction parameters and variable viscosity parameters, the velocity distribution decreases while temperature distribution increases. The magnitude of skin friction coefficient and the rate of heat transfer decrease with the increasing values of radiation parameter and Prandtl number. The results are also compared for specific values of the parameters with others documented in the literature.