Vol.17, No.1, 2021, pp.1-20, doi:10.32604/fdmp.2021.013497
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ARTICLE
Numerical Simulations of Hydromagnetic Mixed Convection Flow of Nanofluids inside a Triangular Cavity on the Basis of a Two-Component Nonhomogeneous Mathematical Model
  • Khadija A. Al-Hassani1, M. S. Alam2, M. M. Rahman1,*
1 Department of Mathematics, College of Science, Sultan Qaboos University, Muscat, Oman
2 Department of Mathematics, Jagannath University, Dhaka, Bangladesh
* Corresponding Author: M. M. Rahman. Email:
Received 08 August 2020; Accepted 24 December 2020; Issue published 09 February 2021
Abstract
Nanofluids have enjoyed a widespread use in many technological applications due to their peculiar properties. Numerical simulations are presented about the unsteady behavior of mixed convection of Fe3O4-water, Fe3O4- kerosene, Fe3O4-ethylene glycol, and Fe3O4-engine oil nanofluids inside a lid-driven triangular cavity. In particular, a two-component non-homogeneous nanofluid model is used. The bottom wall of the enclosure is insulated, whereas the inclined wall is kept a constant (cold) temperature and various temperature laws are assumed for the vertical wall, namely: θ = 1(Case 1), θ = Y(1 – Y)(Case 2), and θ = sin(2πY)(Case 3). A tilted magnetic field of uniform strength is also present in the fluid domain. From a numerical point of view, the problem is addressed using the Galerkin weighted residual finite element method. The role played by different parameters is assessed, discussed critically and interpreted from a physical standpoint. We find that a higher aspect ratio can produce an increase in the average Nusselt number. Moreover, the Fe3O4-EO and Fe3O4-H2O nanofluids provide the highest and smallest rate of heat transfer, respectively, for all the considered (three variants of) thermal boundary conditions.
Keywords
Nanofluid; mixed convection; lid-driven; triangular cavity; finite element method
Cite This Article
Al-Hassani, K. A., Alam, M. S., Rahman, M. M. (2021). Numerical Simulations of Hydromagnetic Mixed Convection Flow of Nanofluids inside a Triangular Cavity on the Basis of a Two-Component Nonhomogeneous Mathematical Model. FDMP-Fluid Dynamics & Materials Processing, 17(1), 1–20.
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