Temperature distribution and heat radiation of patterned surfaces at short wavelengths
Name
PhysRevE.95.052104.pdf
Size
2.09 MB
Format
Adobe PDF
Checksum (MD5)
ac0eafb71e955a9c948c3511726c7851
Author(s)
Emig, Thorsten
Date Issued
May 2017
Journal
Physical Review E
Publisher
American Physical Society
Citation
Emig, Thorsten."Temperature distribution and heat radiation of patterned surfaces at short wavelengths." Physical Review E 95 (2017 May): 052104. © 2017 American Physical Society
Version
Final published version
Abstract
We analyze the equilibrium spatial distribution of surface temperatures of patterned surfaces. The surface is exposed to a constant external heat flux and has a fixed internal temperature that is coupled to the outside heat fluxes by finite heat conductivity across the surface. It is assumed that the temperatures are sufficiently high so that the thermal wavelength (a few microns at room temperature) is short compared to all geometric length scales of the surface patterns. Hence the radiosity method can be employed. A recursive multiple scattering method is developed that enables rapid convergence to equilibrium temperatures. While the temperature distributions show distinct dependence on the detailed surface shapes (cuboids and cylinder are studied), we demonstrate robust universal relations between the mean and the standard deviation of the temperature distributions and quantities that characterize overall geometric features of the surface shape.
MIT Department
MultiScale Materials Science for Energy and Environment, Joint MIT-CNRS Laboratory
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevE.95.052104
