Abstract Traditional enhancing convective heat transfer methods are mainly based on the flow turbulence by vortex generators, however, with increasingly heat transfer needs, traditional stationary vortex generators have not met the cooling demand. Thus, active flow control technique is proposed to better enhance convective heat transfer performance. The vibration cylinder is set as a vortex generator to achieve fluid flow disturbance aiming to enhance heat transfer. This method did not change the structure of the channel wall but introduced the built-in vibration source to achieve flow perturbations. New cooling technique is achieved by adjusting vibration cylinder to achieve active flow control and thermal control management. Several test Cases are built to analyze influence of cylinder vibration on convective heat transfer. The investigation indicates that the heat transfer coefficient can be improved by a maximum 14.69%, and comprehensive heat transfer performance is improved by 16.13% than the traditional stationary cylinder channel. Finally, the cylinder vibration can better improve the cooling performance and maintain a smaller pressure drop change. The study aims to propose a new enhancing heat transfer technique of active flow control to improve current heat exchangers performance.

中文翻译：

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振动筒单侧加热小型冷却通道层流对流换热研究

摘要 传统的增强对流换热方法主要基于涡流发生器产生的流动湍流，但随着传热需求的增加，传统的固定涡流发生器已不能满足冷却需求。因此，提出了主动流动控制技术以更好地增强对流传热性能。振动筒被设置为涡流发生器，以实现流体流动扰动，以增强传热。这种方法没有改变通道壁的结构，而是引入了内置的振动源来实现流动扰动。新的冷却技术是通过调整振动缸来实现主动流量控制和热控制管理。建立了几个测试用例来分析气缸振动对对流传热的影响。调查表明，传热系数最大可提高14.69%，综合传热性能比传统的固定圆柱通道提高16.13%。最后，气缸振动可以更好地提高冷却性能并保持较小的压降变化。该研究旨在提出一种新的主​​动流动控制增强传热技术，以改善当前的换热器性能。