中文版 | English
Title

Nonmonotonic heat dissipation phenomenon in close-packed hotspot systems

Author
Corresponding AuthorWu, Lei
Publication Years
2022-07-11
DOI
Source Title
ISSN
2470-0045
EISSN
2470-0053
Volume106Issue:1
Abstract
Transient heat dissipation in close-packed quasi-two-dimensional nanoline and three-dimensional nanocuboid hotspot systems is studied based on the phonon Boltzmann transport equation. It is found that, counterintuitively, the heat dissipation efficiency is not a monotonic function of the distance between adjacent nanoscale heat sources but reaches the highest value when this distance is comparable to the phonon mean free path. This is due to the competition of two thermal transport processes: quasiballistic transport when phonons escape from the nanoscale heat source and the scattering among phonons originating from the adjacent nanoscale heat source.
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
National Natural Science Foundation of China[12147122] ; China Postdoctoral Science Foundation[2021M701565]
WOS Research Area
Physics
WOS Subject
Physics, Fluids & Plasmas ; Physics, Mathematical
WOS Accession No
WOS:000829941900004
Publisher
EI Accession Number
20223112457536
EI Keywords
Boltzmann equation ; Nanotechnology
ESI Classification Code
Nanotechnology:761 ; Statistical Methods:922
ESI Research Field
PHYSICS
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/359451
DepartmentDepartment of Mechanics and Aerospace Engineering
Affiliation
Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China
First Author AffilicationDepartment of Mechanics and Aerospace Engineering
Corresponding Author AffilicationDepartment of Mechanics and Aerospace Engineering
First Author's First AffilicationDepartment of Mechanics and Aerospace Engineering
Recommended Citation
GB/T 7714
Zhang, Chuang,Wu, Lei. Nonmonotonic heat dissipation phenomenon in close-packed hotspot systems[J]. PHYSICAL REVIEW E,2022,106(1).
APA
Zhang, Chuang,&Wu, Lei.(2022).Nonmonotonic heat dissipation phenomenon in close-packed hotspot systems.PHYSICAL REVIEW E,106(1).
MLA
Zhang, Chuang,et al."Nonmonotonic heat dissipation phenomenon in close-packed hotspot systems".PHYSICAL REVIEW E 106.1(2022).
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