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1 Journal of Applied Mathematics and Computational Mechanics

1 2016

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Numerical analysis of thermal processes in the system protective clothing – biological tissue subjected to an external heat flux

Mochnacki B., Duda M.

Journal of Applied Mathematics and Computational Mechanics

2016

Vol. 15, nr 2

85--93

The non-homogeneous fragment of biological tissue is considered. Its shape roughly corresponds to the fragment of cross-section of the upper or lower limb. The tissue domain is protected by a layer of protective clothing. The purpose of numerical computations is to examine the effectiveness of the clothing insulation layer on the action of the external heat fluxes of differing intensity. Thermal processes in the tissue domain are described by the system of the Pennes equations. This system is supplemented by the appropriate boundary-initial conditions and the energy equations determining the transient temperature field in the fabric and air gap sub-domains (the air gap is treated as a solid body). At the stage of numerical computations, the program MSC. Marc has been used. In the final part of the paper, the examples of numerical simulations and also the conclusions are presented.