Brinck H, Werner J
Institute of Physiology, Ruhr-University, Bochum, Germany.
J Biomech Eng. 1994 Aug;116(3):324-30. doi: 10.1115/1.2895738.
A three-dimensional thermal model is presented in which convective heat transfer is defined in terms of the physical details of the vascular system. The convective heat exchange between prearteriole and postvenule vessels and the tissue across the vessel walls is calculated explicitly without using shape factors. Conduction in x-, y-, and z-direction is considered. This vascular model is applied to a human extremity. The spatial variations in the arterial, venous and tissue temperatures under basal conditions, hyperthermic conditions and in a cold environment are computed. Conclusions are drawn as to the validity of bioheat approaches.
本文提出了一种三维热模型，其中对流热传递是根据血管系统的物理细节来定义的。前小动脉和后微静脉血管与穿过血管壁的组织之间的对流热交换是在不使用形状因子的情况下明确计算的。考虑了x、y和z方向的热传导。该血管模型应用于人体肢体。计算了基础条件、高温条件和寒冷环境下动脉、静脉和组织温度的空间变化。得出了关于生物热方法有效性的结论。
