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作 者:Ying Li Jiaxin Li 李鹰;李佳鑫(Interdisciplinary Center for Quantum Information,State Key Laboratory of Modern Optical Instrumentation,College of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,China;ZJU-Hangzhou Global Science and Technology Innovation Center,Key Lab of Advanced Micro/Nano Electronic Devices&Smart Systems of Zhejiang,Zhejiang University,Hangzhou 310027,China;International Joint Innovation Center,Zhejiang University,Haining 314400,China;School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China)
机构地区:[1]Interdisciplinary Center for Quantum Information,State Key Laboratory of Modern Optical Instrumentation,College of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,China [2]ZJU-Hangzhou Global Science and Technology Innovation Center,Key Lab of Advanced Micro/Nano Electronic Devices&Smart Systems of Zhejiang,Zhejiang University,Hangzhou 310027,China [3]International Joint Innovation Center,Zhejiang University,Haining 314400,China [4]School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China
出 处:《Chinese Physics Letters》2021年第3期22-28,共7页中国物理快报(英文版)
摘 要:We prove that under the condition of closed boundary to mass flux, pure advection is not a valid mechanism to make a practical thermal diode. Among the various designs of thermal diodes, many of them involve circulating fluid flow, such as in thermosyphons. However, those designs often employ natural convection, which is basically a nonlinear process. It thus remains unclear how the pure advection of temperature field induced by a decoupled velocity field influences the symmetry of heat transfer. Here we study three typical models with pure advection:one with open boundary, one with closed boundary at unsteady state, and one with closed boundary at steady state. It is shown that only the last model is practical, while it cannot become a thermal diode. Finally, a general proof is given for our claim by analyzing the diffusive reciprocity.
关 键 词:process. state. BOUNDARY
分 类 号:TN31[电子电信—物理电子学]
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