Modeling near-field radiative heat transfer from sharp objects using a general three-dimensional numerical scattering technique
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McCauley-2012-Modeling near-field radiative heat transfer from.pdf
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Author(s)
McCauley, Alexander Patrick
Reid, M. T. Homer
Krueger, Matthias Helmut Guenter
Johnson, Steven G.
Date Issued
April 2012
Journal
Physical Review B
Publisher
American Physical Society
Citation
McCauley, Alexander et al. “Modeling Near-field Radiative Heat Transfer from Sharp Objects Using a General Three-dimensional Numerical Scattering Technique.” Physical Review B 85.16 (2012). ©2012 American Physical Society
Version
Final published version
Abstract
We develop a general numerical method to calculate the nonequilibrium radiative heat transfer between a plate and compact objects of arbitrary shapes, making the first accurate theoretical predictions for the total heat transfer and the spatial heat flux profile for three-dimensional compact objects including corners or tips. In contrast to the known sphere-plate heat transfer, we find qualitatively different scaling laws for cylinders and cones at small separations, and, in contrast to a flat or slightly curved object, a sharp cone exhibits a local minimum in the spatially resolved heat flux directly below the tip. Our results may have important implications for near-field thermal writing and surface roughness.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
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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.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.85.165104
