Modelling transient heat transfer through the skin and a contact material.
Modelling transient heat transfer through the skin and a contact material.
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对通过皮肤和接触材料的瞬态热传递进行建模。
DOI：
10.1088/0031-9155/34/10/011
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发表时间：
1989
影响因子：
3.5
通讯作者：
G. Eason
中科院分区：
文献类型：
--
作者：
D. A. Hodson;J C Barbenel;G. Eason
描述了皮肤和表面组织的两种热模型，这两种模型都包含了通过温度依赖热源的皮下和真皮血液流动的热效应。该模型将皮肤血流表示为有限厚度区域的灌注，可以得到瞬态温度的纯数值解。用一个发热表面来表示皮肤的血液流动，就产生了一个能产生明确解析表达式的模型。虽然这些解析表达式需要数值积分技术来最终计算它们，但它们的形式使温度值的推导比纯数值方法更有效。这两种模型都用于预测由与皮肤表面密切接触的组织和热被动材料之间的相互作用产生的随时间变化的温度分布。比较了两种模型的预测结果，并指出了分析模型的局限性。
Two thermal models of the skin and superficial tissues are described, both of which incorporate the thermal effects of subcutaneous and dermal blood flow through temperature-dependent heat sources. The model which represents the dermal blood flow as the perfusion of a region of finite thickness gives rise to purely numerical solutions for the transient temperatures. Representing the dermal blood flow by a heat generating surface gives rise to a model which yields explicitly analytical expressions. Although these analytical expressions require numerical integration techniques to finally evaluate them, they are of a form which allows temperature values to be derived more efficiently than by the purely numerical method. Both models are used to predict the time-dependent temperature profiles resulting from the interaction between the tissues and thermally passive materials in intimate contact with the skin surface. The predictions of the two models are compared and the limitations of the analytical model highlighted.