Mixed convection over a horizontal plate with streamwise non-uniform surface temperature distribution

Hasan, Muhammad Noman, Saha, Suvash C., & Gu, YuanTong (2013) Mixed convection over a horizontal plate with streamwise non-uniform surface temperature distribution. Journal of Heat Transfer, 135(7), 072501.

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Abstract

Numerical investigation on mixed convection of a two-dimensional incompressible laminar flow over a horizontal flat plate with streamwise sinusoidal distribution of surface temperature has been performed for different values of Rayleigh number, Reynolds number and frequency of periodic temperature for constant Prandtl number and amplitude of periodic temperature. Finite element method adapted to rectangular non-uniform mesh elements by a non-linear parametric solution algorithm basis numerical scheme has been employed. The investigating parameters are the Rayleigh number, the Reynolds number and frequency of periodic temperature. The effect of variation of individual investigating parameters on mixed convection flow characteristics has been studied to observe the hydrodynamic and thermal behavior for while keeping the other parameters constant. The fluid considered in this study is air with Prandtl number 0.72. The results are obtained for the Rayleigh number range of 102 to 104, Reynolds number ranging from 1 to 100 and the frequency of periodic temperature from 1 to 5. Isotherms, streamlines, average and local Nusselt numbers are presented to show the effect of the different values of aforementioned investigating parameters on fluid flow and heat transfer.

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ID Code: 57200
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Mixed Convection, laminar flow, horizontal flat plate, streamwise temperature distribution, sinusoidal surface temperature, frequency of periodic temperature
DOI: 10.1115/1.4023745
ISSN: 1528-8943
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 A S M E International
Deposited On: 12 Feb 2013 22:01
Last Modified: 28 Aug 2013 21:49

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