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MHD Free Convective Heat Transfer in a Triangular Enclosure Filled with Copper-Water Nanofluid


Tarikul Islam1*, Nahida Akter2, and Nusrat Jahan3

1&2Department of Mathematics, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh; 3Department of Science and Humanity, Bangladesh Army International University of Science and Technology, Cumilla, Bangladesh.

*Correspondence: tarikulamath@gmail.com (Tarikul Islam, Department of Mathematics, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh).

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ABSTRACT

Two-dimensional time-independent free convective flow and temperature flow into a right-angled triangle shape cavity charged by Cu-H2O nanofluid has been performed. The horizontal side of the enclosure is warmed uniformly T=Th whilst the standing wall is cooled at low-temperature T=Tc and the hypotenuse of the triangular is insulated. The dimensionless non-linear governing PDEs have been solved numerically by employing the robust PDE solver the Galerkin weighted residual finite element technique. An excellent agreement is founded between the previous, and present studies. The outcomes are displayed through streamlined contours, isotherm contours, and local and average Nusselt numbers for buoyancy-driven parameter Rayleigh number, Hartmann number, and nanoparticles volume fraction. The outcomes show that the temperature flow value significantly changes for the increases of Rayleigh number, Hartmann number, and nanoparticles volume fraction. The average Nusselt number is increased for the composition of nanoparticles whereas diminishes with the increase of the Hartmann number. 

Keywords: Nanoparticles, MHD, Heat transfer, Finite element method, Free convection, and Triangular cavity.

Citation:  Islam T., Akter N., and Jahan N. (2020). MHD free convective heat transfer in a triangular enclosure filled with Copper-water nanofluid, Int. J. Mat. Math. Sci., 2(2), 29-38. 

https://doi.org/10.34104/ijmms.020.029038


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