Time-dependent nonreciprocal heat transfer performance in thermal metamaterials

被引：0
|
作者：
Su Y. [1 ]
Xiong J. [1 ]
机构：
[1] Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2022年 / 43卷 / 09期
关键词：
asymmetric heat transfer; gradient metamaterial; method of separation of variables; nonreciprocal heat transfer; parameter mismatch criterion; spatiotemporal modulation; thermal metamaterial; unsteady-state heat transfer;
D O I：
10.11990/jheu.202205084
中图分类号：
学科分类号：
摘要：
Aiming at the artificially-designed nonreciprocal heat transfer metamaterials employed in wide applications, a study was conducted on the nonreciprocal heat transfer in thermal metamaterials under transient conditions based on the parameter mismatch criterion. The necessary and sufficient conditions for the existence of time-dependent nonreciprocal thermal metamaterials were deduced and verified via simulation. This study clearly revealed the nonreciprocal heat transfer phenomena of a system with constant thermal conductivity and gradient distribution of density-specific heat capacity. Moreover, it will stimulate the development of fields, including macroscopic thermal diode, thermal management, and thermal computing. © 2022 Editorial Board of Journal of Harbin Engineering. All rights reserved.
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页码：1293 / 1298
页数：5
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