可重构的三维热穹顶

IF 10.1 1区 工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY
Yuhong Zhou , Fubao Yang , Liujun Xu , Pengfei Zhuang , Dong Wang , Xiaoping Ouyang , Ying Li , Jiping Huang
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引用次数: 0

摘要

热超材料代表了一种突破性的方法来控制热传导,并且,作为一个关键组成部分,热不可见性对热管理至关重要。尽管热隐身技术发展迅速,但在实际应用中仍面临两方面的限制。首先,物体通常被完全封闭在传统的斗篷中,这使得它们很难使用,也不适合带有热源的物体。其次,虽然已经提出了一些理论建议来改变材料的热导率以实现动态隐身,但它们的设计复杂而刚性,不适合在真实的三维空间中大规模使用。在这里,我们提出了一个热穹顶的概念,以实现三维隐身。我们的方案包括一个开放的功能区域,大大提高了它的可用性和适用性。它具有可重构的结构,由简单的各向同性天然材料建造,使其适合动态要求。我们的可重构热穹顶的性能已经通过模拟和实验证实,与理论一致。这一概念的引入可以极大地推动热隐身技术从理论到工程的发展,并为其他物理领域,如直流电场和磁场提供灵感。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reconfigurable Three-Dimensional Thermal Dome
Thermal metamaterial represents a groundbreaking approach to control heat conduction, and, as a crucial component, thermal invisibility is of utmost importance for heat management. Despite the flourishing development of thermal invisibility schemes, they still face two limitations in practical applications. First, objects are typically completely enclosed in traditional cloaks, making them difficult to use and unsuitable for objects with heat sources. Second, although some theoretical proposals have been put forth to change the thermal conductivity of materials to achieve dynamic invisibility, their designs are complex and rigid, making them unsuitable for large-scale use in real three-dimensional (3D) spaces. Here, we propose a concept of a thermal dome to achieve 3D invisibility. Our scheme includes an open functional area, greatly enhancing its usability and applicability. It features a reconfigurable structure, constructed with simple isotropic natural materials, making it suitable for dynamic requirements. The performance of our reconfigurable thermal dome has been confirmed through simulations and experiments, consistent with the theory. The introduction of this concept can greatly advance the development of thermal invisibility technology from theory to engineering and provide inspiration for other physical domains, such as direct current electric fields and magnetic fields.
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来源期刊
Engineering
Engineering Environmental Science-Environmental Engineering
自引率
1.60%
发文量
335
审稿时长
35 days
期刊介绍: Engineering, an international open-access journal initiated by the Chinese Academy of Engineering (CAE) in 2015, serves as a distinguished platform for disseminating cutting-edge advancements in engineering R&D, sharing major research outputs, and highlighting key achievements worldwide. The journal's objectives encompass reporting progress in engineering science, fostering discussions on hot topics, addressing areas of interest, challenges, and prospects in engineering development, while considering human and environmental well-being and ethics in engineering. It aims to inspire breakthroughs and innovations with profound economic and social significance, propelling them to advanced international standards and transforming them into a new productive force. Ultimately, this endeavor seeks to bring about positive changes globally, benefit humanity, and shape a new future.
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