A coupled problem of heat and mass transfer applied to porous textile media surrounding the human foot
| Autor: | Durany, J., Posceiro, L., Fernando Varas |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Scopus-Elsevier UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | There have been many attempts in the literature to model human thermoregulation systems in order to predict central temperature and other heat stress indicators (see [3, 9], among many others). These models depend on a wide range of variables, including individual characteristics, surrounding textile and environmental factors. The main objective of this work is to formulate a stable, realistic and versatile 2-D mathematical model describing the heat transfer of the human foot (bare foot and foot surrounded by textile materials). The novelty, but also the difficulty , lies on the theoretical multiphysics that models the textile as a porous media, involving energy transport but also mass transport of liquid water, water vapour and gas, including evaporation phenomena. The numerical solution to the global problem involves a segregated algorithm and fixed point techniques for the nonlinearities jointly with finite elements spatial discretizations. Implementation has been performed through commercial software COMSOL TM Multiphysics. |
| Databáze: | OpenAIRE |
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