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Enhanced heat transfer during oscillatory flow in annular channels

✍ Scribed by Yuichi Ohno; Gaku Tanaka; Makoto Hishida

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
441 KB
Volume
35
Category
Article
ISSN
1099-2871

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✦ Synopsis

Heat transfer during oscillatory flow in a circular straight tube with a solid-core tube inserted in its center was numerically simulated. The purpose of the solid-core tube is to enhance axial heat transfer by increasing the lateral heat transfer effect for high frequency of the oscillatory flow. Simulation results showed that (a) axial heat transfer increases with the increasing diameter of the solid-core tube, (b) the material of the solid-core tube does not significantly affect axial heat transfer, and (c) efficiency based on the ratio of heat transfer to the work done is higher than that in a bundle of circular capillary tubes.

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