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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Imprimir: 2152-5102
ISSN On-line: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v36.i3.20
pages 207-230

Fluctuating Free Convection Flow Along Heated Horizontal Circular Cylinders

Md. Anwar Hossain
Department of Mathematics, University of Dhaka, Dhaka 1000, Bangladesh
Md. Kamrujjaman
Department of Mathematics, University of Dhaka, Dhaka-1000, Bangladesh
Rama Subba Reddy Gorla
Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, 44115 USA; Department of Mechanical Engineering, University of Akron, Akron, Ohio 44325, USA; Department of Mechanical & Civil Engineering, Purdue University Northwest, Westville, IN 46391, USA

RESUMO

Unsteady free convection flow of a viscous incompressible fluid along an infinite horizontal cylinder with a small-amplitude oscillation of the surface temperature about a mean temperature has been investigated. Using appropriate transformations, the governing equations reduced to local nonsimilarity equations for both the steady and unsteady parts of the solutions, which are obtained numerically employing the implicit finite difference method together with the Keller box elimination scheme. The effects of pertinent parameters, such as the Strouhal number, St, and the Prandtl number, Pr, on the local fluctuating skin-friction and heat transfer coefficients as well as on their amplitude and phase are shown graphically on the entire surface of the cylinder 0 ≤ xπ.


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