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首页> 外文期刊>Journal of Heat Transfer >Flow Characteristics and Novel Applications of Synthetic Jets: A Review
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Flow Characteristics and Novel Applications of Synthetic Jets: A Review

机译：合成喷气机的流动特性和新型应用：综述

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Synthetic jets, often abbreviated as "SJs" or "Synjets," are a type of zero net mass flux (ZNMF) jets, which have gained popularity due to their ability to transfer momentum without transferring mass. This property distinguishes SJs from their counterpart traditional continuous jets. Over a stretch of time, SJs have been employed extensively in applications such as active flow control, impingement heat transfer, and miniature electronics cooling. However, researchers are now slowly extending the frontiers of SJ research and making efforts to utilize excellent properties of SJs in novel applications such as autonomous underwater vehicles (AUVs), marine systems, and bio-inspired propulsion systems. This paper strives to identify the gaps in the current research and the areas that have remained unexplored yet. The article begins with a brief discussion of the origin of SJs, i.e., "acoustic streaming." Resulting segments talk about the formation criteria and the recent works employing various configurations of orifices and cavities. The paper discusses the critical concepts such as jet impact factor, volumetric efficiency, and propulsive efficiency of synthetic jets. It is followed by introduction of novel flow control systems employing SJs such as gurney flaps, bumps, and electro-active synthetic jets. Finally, the most innovative applications of SJs such as AUVs, unmanned air vehicles, and jetting cavities are also brought out. Pulsatile jet flows found in jellyfish, cephalopod, squid, and salp have been discussed in great detail. The exhaustive discussion on future prospects strives to not only provide the reader with the comprehensive insights into SJs, but also to motivate future researchers to overcome the gaps identified in this paper.
机译：合成喷射器通常缩写为“SJS”或“Synjets”，是一种零净质量磁通（ZnMF）喷射器，其由于其在不转移质量的情况下传递动量的能力而受到普及。此属性可区分SJ，从他们的对应传统的连续喷气机中。在一段时间内，SJ已经广泛使用，如主动流量控制，冲击传热和微型电子冷却等应用。然而，研究人员现在正在慢慢扩大SJ研究的边缘，并努力利用自主水下车辆（AUV），海洋系统和生物启发推进系统等新型应用中SJ的优异特性。本文致力于确定当前研究中的差距以及尚未熟悉未开发的区域。本文始于简要讨论SJS，即“声学流”的起源。产生的细分谈论形成标准和近期采用各种配置的孔和蛀牙的作品。本文讨论了合成射流的射流冲击因子，体积效率和推进效率等关键概念。随后推出采用SJ，如Gurney襟翼，凸块和电活性合成喷射器的新型流量控制系统。最后，还提出了SJ的最具创新性的SJ，如AUV，无人驾驶机械和喷射腔。在水母，头部，鱿鱼和萨尔普中发现的脉动​​喷射流已经很好地讨论过。关于未来前景的详尽讨论致力于将读者提供全面的见解进入SJ，而且还可以激励未来的研究人员来克服本文中确定的差距。

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