Abstract

Experimental investigations were conducted of heat transfer from a single row of circular cylinders, placed in the transverse direction of flows of air and water. Local and average Nusselt numbers for a cylinder at cylinder spacings L/d from 1.3 to 3.3 were measured precisely in the Reynolds number range from 102 to 5.0×104. Average Nusselt numbers are well correlated with the Reynolds numbers based on mean velocity in the flow channel between cylinders. The effect of the interaction between wake flows behind cylinders on average Nusselt number is relatively small.

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