Heat Transfer, Recovery Factor, and Pressure Distributions Around a Circular Cylinder, Normal to a Supersonic Rarefied-Air Stream

1960 ◽  
Vol 27 (10) ◽  
pp. 721-729 ◽  
Author(s):  
O. K. TEWFIK ◽  
W. H. GIEDT
Keyword(s):  
Heat Transfer ◽  
Circular Cylinder ◽  
Recovery Factor ◽  
Pressure Distributions ◽  
Air Stream

Heat Transfer Enhancement of a Circular Cylinder

2005 ◽  
Vol 128 (3) ◽  
pp. 226-233 ◽  
Author(s):  
Takayuki Tsutsui ◽  
Tamotsu Igarashi
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Circular Cylinder ◽  
Heat Transfer Enhancement ◽  
Front Face ◽  
Transfer Enhancement ◽  
Optimum Configuration ◽  
Air Stream

A rod was positioned upstream of a circular cylinder to enhance its heat transfer in an air stream. The diameter of the cylinder was 40mm and the diameter of the rod ranged from 1to12mm. The distance between the axes of the cylinder and the rod was varied between 40 and 120mm and the Reynolds number ranged from 1.5×104 to 6.2×104. In the optimum configuration, the heat transfer on the front face of the cylinder increases remarkably relative to a single circular cylinder, and results in a 40% overall increase in heat transfer.

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