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Influence of Vibration on Free Convection Heat transfer from Sinusoidal Surface
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 136 - Number 4 |
| Year of Publication: 2016 |
| Authors: Zena K. Kadhim, Hadi O. Mery |
10.5120/ijca2016908252
|
Zena K. Kadhim, Hadi O. Mery . Influence of Vibration on Free Convection Heat transfer from Sinusoidal Surface. International Journal of Computer Applications. 136, 4 ( February 2016), 1-6. DOI=10.5120/ijca2016908252
Abstract
The influence of forced vibration on the free convection heat transfer from a sinusoidal surface has been experimentally investigated in this paper. A copper plate of [350×150×10 mm] length, width and thickness respectively has been used as a test sample where, the upper surface of this plate is manufactured by a wire-cutting machine as a sinusoidal surface with 0.3 amplitude to wavelength ratio. This plate is heated by electric heater under constant heat flux conditions ranging as [250, 500, 750, 1000, 1250 and 1500 W/m2] and subjected to vertical forced vibration with frequencies [5, 10, 15, 20 and 25 Hz] and [3, 4 and 5 mm] peak to peak vibration amplitude, the Rayleigh number (Ra) ranging from [1.5×108 to 4.0×108], the vibrational Reynolds number (
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