当前位置: X-MOL 学术Int. Commun. Heat Mass Transf. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A novel method of enhancing convective heat transfer by dynamic controlling rib
International Communications in Heat and Mass Transfer ( IF 6.4 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.icheatmasstransfer.2020.104830
Pengyong Xie , Xiaobing Zhang

Abstract New and efficient mixing heat technology is increasingly demanded for many industrial fields. This paper proposed a novel technique of enhancing convective heat transfer by dynamic controlling rib and investigated several cases of vibration rib controlling flow. The study results of heat transfer coefficient, temperature and turbulent intensity indicate that dynamic flow control is an efficient heat transfer enhancement technique. The dynamic flow control breaks through the current enhancement heat transfer technologies such as general stationary rib and other vortex generators, and achieves a better heat transfer effect. Comparing traditional rib technologies, vibration rib does not only increase heat transfer performance but leads a lower flow resistance. More importantly, it can be dynamically adjusted to achieve better flow turbulence. As a conclusion, the enhancement heat transfer performance can be timely dynamically adjusted to meet the different heat transfer demand by changing timely the frequency and amplitude of vibration rib, which achieves the optimization of whole system thermal protection. New enhancing heat transfer technique effectively improve the comprehensive heat transfer performance, and provides a reference for intelligent thermal control protection system

中文翻译:

一种动态控制肋增强对流传热的新方法

摘要 许多工业领域对新型高效混合热技术的需求日益增加。本文提出了一种通过动态控制肋增强对流传热的新技术,并研究了振动肋控制流动的几种情况。传热系数、温度和湍流强度的研究结果表明,动态流动控制是一种有效的强化传热技术。动态流量控制突破了目前一般固定肋等涡流发生器等强化传热技术,实现了更好的传热效果。与传统肋技术相比,振动肋不仅提高了传热性能,而且导致了更低的流动阻力。更重要的是,它可以动态调整以获得更好的流动湍流。综上所述,通过适时改变振动肋的频率和幅值,可以及时动态调整增强传热性能以满足不同的传热需求,从而实现整个系统热保护的优化。新型强化传热技术有效提高综合传热性能,为智能热控保护系统提供参考
更新日期:2020-12-01
down
wechat
bug