Abstract Motivated by the concept of energy-optimized air/space vehicles, the design of more-electric and all-electric vehicles has become increasingly popular. With the advance of micro-electro-mechanical systems, on-board electronic/electrical devices become more integrated and miniaturized. It means that these highly-advanced devices should rely on a high heat-flux dissipation method to maintain an effective and safe operation. Spray cooling, universally recognized as the next-generation cooling scheme, has been extensively utilized in the thermal protection of the ground-based electric/electronic equipment. In contrast, the aerospace-oriented spray cooling (AOSC) application is extremely rare. It can be attributed to the fact that the research into the space/air-oriented spray cooling technologies is still in its infancy, which leads to a lack in the knowledge of alternations of flow patterns and heat transfer behaviors caused by the complicated space or high-altitude space. This paper presents a comprehensive review of the up-to-date published articles on AOSC and divides these published articles into four categories: 1) investigation into the effect of gravity on the cooling performance; 2) investigation into the effect of environmental pressure on the cooling performance; 3) study of the effect of acceleration and vibration on the cooling performance; 4) investigation of the aerospace spray cooling system. Additionally, comments, perspectives, and orientations are provided, in which several promising contributions are highlighted. This paper aims to promote the practical application of the AOSC system which could facilitate the development of the energy-optimized green air/space vehicle.

中文翻译：

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面向航天的喷雾冷却技术综述

摘要 在能源优化型空天飞行器概念的推动下，全电动和全电动飞行器的设计越来越流行。随着微机电系统的进步，车载电子/电气设备变得更加集成和小型化。这意味着这些高度先进的设备应该依靠高热通量消散方法来保持有效和安全的运行。喷雾冷却是公认的下一代冷却方案，已广泛用于地面电气/电子设备的热保护。相比之下，面向航空航天的喷雾冷却 (AOSC) 应用极为罕见。这可以归因于空间/空气导向喷雾冷却技术的研究还处于起步阶段，这导致对复杂空间或高空空间引起的流动模式和传热行为的变化缺乏了解。本文对 AOSC 上最新发表的文章进行了全面回顾，并将这些发表的文章分为四类：1) 研究重力对冷却性能的影响；2) 环境压力对冷却性能影响的调查；3）加速度和振动对冷却性能影响的研究；4）航天喷雾冷却系统的研究。此外，还提供了评论、观点和方向，其中突出了几个有希望的贡献。