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Acoustic enhancement of the rate of heat transfer over a flat plate-An experimental investigation

机译:平板传热速率的声学增强-实验研究

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摘要

Incerasing the rate of heat transfer can improve product quality and lower energy cost for many energy systems. Pulsating fluid flow has been used to increased the rate of heat transfer in some situations. Specifically, sound waves below the audible limit, termed infrasound, have been used to increase the rate of heat transfer from small- diameter wire rods. This study examined the effects of infrasound on the rate of heat transfer from a flat plate. A standing sound wave is formed in the neck of a Helmholtz resonator and may be enhanced by producing sound waves at the resonant frequency at or near the neck of the resonator.
机译:提高热传递速率可以改善许多能源系统的产品质量并降低能源成本。在某些情况下,脉动流体流已用于提高热传递速率。具体而言,已使用低于可听极限的声波(称为次声)来提高小直径线材的传热速率。这项研究检查了次声对平板传热速率的影响。驻声波在亥姆霍兹谐振器的颈部中形成,并且可以通过在谐振器的颈部处或附近以谐振频率产生声波来增强驻波。

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