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HEAT DIFFUSION IN FRACTAL GEOMETRY COOLING SURFACE

ABSTRACT
In the paper the numerical simulation of heat diffusion in the fractal geometry of Koch snowflake is presented using multidomain mixed Boundary Element Method. The idea and motivation of work is to improve the cooling of small electronic devices using fractal geometry of surface similar to cooling ribs. The heat diffusion is assumed as the only principle of heat transfer. The results are compared to the heat flux of a flat surface. The limiting case of infinite small fractal element is computed using Richardson extrapolation.
KEYWORDS
PAPER SUBMITTED: 2012-04-04
PAPER REVISED: 2012-06-26
PAPER ACCEPTED: 2012-06-27
DOI REFERENCE: https://doi.org/10.2298/TSCI1204955R
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THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE 4, PAGES [955 - 968]
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© 2020 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence