20.500.12556/DKUM-83254 Fractal geometry as an effective heat sink Fraktalna geometrija reber za učinkovit hladilnik "How long is the coast of Britain?" was the question stated by Mandelbrot. Using smaller and smaller rulers the coast length limits to infinity. If this logic is applied to the fractal heat sink geometry, infinite cooling capacity should be obtained using fractals with mathematically infinite surface area. The aim of this article is to check this idea using Richardson extrapolation of numerical simulation results varying the fractal element length from one to zero. As expected, the extrapolated heat flux has a noninfinite limit. The presented fractal heat sink geometry is non-competitive to the straight fins. fractal heat sink LED cooling CPU cooling conjugate heat transfer laminar flow boundary element method Koch snowflake fraktalno hladilno telo LED hlajenje CPU hlajenje konjugirani prenos toplote laminarni tok metoda robnih elementov Kochova snežinka true false true Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.] Angleški jezik Slovenski jezik https://www.sv-jme.eu/ © The Authors 2022 Članek v reviji 2022-10-07 03:16:52 2023-07-14 10:35:54 2025-03-26 13:43:52 0000-00-00 00:00:00 2022 0 0 517-528 no. 9 Vol. 68 Sep. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2022-01-24 2022-06-13 2022-09-01 621.56:536.24 124223491 10.5545/sv-jme.2022.28 0039-2480 RAZ_Ramsak_Matjaz_2022.pdf RAZ_Ramsak_Matjaz_2022.pdf 1 C5C67F27B070DC30E908C1B21DFF16F4 fe931952460f01290b0a959754647645d7ce2b8bc94ab0a89b83141e94f0cd91 c2aa96f4-2221-11ee-ac4d-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=168778 https://www.sv-jme.eu/sl/article/fractal-geometry-as-an-effective-heat-sink/ 0 b9b4c72f-45dd-11ed-a8d0-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=163791 Fakulteta za strojništvo 0 0 0