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.

Issue Section:
Forced Convection
Keywords:
forced convection heat transfer, heat transfer enhancement, flow control, circular cylinder, rods (structures), heat transfer, confined flow, turbulence, flow control
Topics:
Circular cylinders, Cylinders, Flow (Dynamics), Heat transfer, Reynolds number
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 by American Society of Mechanical Engineers
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