皮膚／木質材料界面における熱挙動のシミュレーション

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  • Computer Simulation of Thermal Behavior at Human Skin-Woody Material Interfaces.
  • ヒフ モクシツ ザイリョウ カイメン ニ オケル ネツ キョドウ ノ シミュレ

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This paper deals with the simulation of thermal behavior at a boundary between skin and woody materials when the woody materials laid over a cement mortar block are in contact with a man's palm. Plywoods, MDF (medium density fiberboards), and cork boards with different thickness were used as the overlays. Changes in temperature at the skin-overlay-underlayment interfaces were measured with thermo-couples at 10 to 30sec intervals. Furthermore, a thermal transfer model based on a numerical method with finite differences was proposed to analyze the changes in temperature and rate of heat transfer at the interfaces. Thermal constants for the model were obtained by fitting them with the experimental values. Then the changes in temperature and rate of heat transfer were simulated by this model for various overlay materials having different thickness. Not only the model is able to obtain the thermal behavior at the interfaces in good agreement with the experimental results on the samples of various woody materials, but also it is valuable to estimate the sensory warmth felt by man's palm in contact with the surface of the overlays, since both the temperature at the skin surface and the heat transfer across the boundary are highly related with the sensory warmth.

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  • 材料

    材料 42 (473), 157-161, 1993

    公益社団法人 日本材料学会

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