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Local Heat Transfer Characteristics in the Wake Region of a Circular Cylinder  

Chang Byong Hoon (Department of Computer Aided Mechanical Design, Incheon City College)
Publication Information
Journal of Energy Engineering / v.14, no.1, 2005 , pp. 30-36 More about this Journal
Abstract
This paper reports the experimental study of the heat transfer characteristics of the wake region behind a cylinder in cross flow. Local heat transfer coefficient was measured from the stagnation point (θ=0°) to 180°, and the variation of Nu in the axial direction along the cylinder was also studied. The results show that the heft transfer rate at the rear (θ=180°) near the duct wall can increase as much as 58% over the 2 dimensional value at the center of the duct. The heat transfer profiles in the wake region also show distinct effects of the aspect ratio and the heat transfer boundary condition.
Keywords
Cylinder; Cross-flow; Wake region; Heat transfer boundary condition;
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