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Chebyshev Spectral Collocation Method for Natural Convection Flow of a Micropolar Nanofluid in the Presence of a Magnetic Field
Date
2016-01-01
Author
Türk, Önder
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The two-dimensional, laminar, unsteady natural convection flow of a micropolar nanofluid (Al2O3-water) in a square enclosure under the influence of a magnetic field, is solved numerically using the Chebyshev spectral collocation method (CSCM). The nanofluid is considered as Newtonian and incompressible, and the nanoparticles and water are assumed to be in thermal equilibrium. The governing equations in nondimensional form are given in terms of stream function, vorticity, micrototaion and temperature. The coupled and nonlinear equations are solved iteratively in the time direction, and an implicit backward difference scheme is employed for the time integration. The boundary conditions of vorticity are computed within this iterative process using a CSCM discretization of the stream function equation. The main advantages of CSCM, such as the high accuracy and the ease of implementation, aremade used of to obtain solutions for very high values of Ra and Ha, up to 10(7) and 1000, respectively.
Subject Keywords
Fluid
,
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URI
https://hdl.handle.net/11511/56755
DOI
https://doi.org/10.1007/978-3-319-39929-4_43
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Graduate School of Applied Mathematics, Conference / Seminar
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Ö. Türk, “Chebyshev Spectral Collocation Method for Natural Convection Flow of a Micropolar Nanofluid in the Presence of a Magnetic Field,” Middle Tech Univ, Inst Appl Math, Ankara, TURKEY, 2016, vol. 112, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56755.