Oscillatory Free Convection about a Horizontal Circular Cylinder in the Presence of Heat Generation | Zendy

Najahulfazliah Zainuddin | Zendy; I. Muhaimin | Zendy; Rozaini Roslan | Zendy; Ishak Hashim | Zendy

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Oscillatory Free Convection about a Horizontal Circular Cylinder in the Presence of Heat Generation

Author(s) -

Najahulfazliah Zainuddin,

I. Muhaimin,

Rozaini Roslan,

Ishak Hashim

Publication year - 2014

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2014/946495

Subject(s) - nusselt number , prandtl number , mechanics , cylinder , heat transfer , film temperature , convective heat transfer , stagnation point , materials science , convection , thermodynamics , physics , geometry , mathematics , turbulence , reynolds number

The oscillatory free convection about a horizontal circular cylinder in a Newtonian fluid in the presence of heat generation is investigated numerically by using the finite difference method. The surface temperature of the cylinder oscillates harmonically about the temperature of the surrounding medium. Heat is generated internally within the Newtonian fluid at a rate proportional to a power of the temperature difference. It is found that the presence of heat generation significantly increases the temperature and velocity distribution. The effects of the heat generation parameter and the Prandtl number on the surface rate of heat transfer, in terms of the local Nusselt number, and the surface shear stress, in terms of the local skin friction, are shown graphically from the stagnation point of the circular cylinder.

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