Modelling heat transfer using COMSOL Multiphysics Giorgio MATTEI [email protected] Course: Fenomeni di trasporto biologico Date: 1 Dec 2015 Pro Problem description β’ Model time-dependent heat transfer πππ ππ + π» β βππ»π = π β πππ π β π»π ππ‘ Generic heat transfer equation For how long can a man survive in the deep ocean water? β’ Boundary temperature: π» = 4 °πΆ β’ Human body heat capacity: ππ β 3470 J/(kg β K) β’ Human body thermal conductivity: π β 0.67 W/(m β K) β’ Metabolic heat production: πΈ = 86 J/s (to be converted in W/m3) β’ Human body density: π β 1062 kg/m3 β’ Critical temperature for death: π»ππ β 25 °C β’ Human body as a vertical cylinder with 30 cm diameter and 1.8 m length
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