A two-dimensional thermal model for determining cold-stressed effects on a human finger

摘要

In this paper, a two-dimensional thermal model, which consists of epidermis, dermis, tendon, bone, and four main arteries was developed to investigate the cold-stressed effects on a human finger. Based on Pennes bioheat equation, the two-dimensional temperature distribution of the middle finger in air and in water was calculated. It is found that after experiencing cold stresses, the blood perfusion rate in dermis become higher than that in silent condition. In addition, the finger re-warms in different speeds for different parts. The temperature in the side of finger increases faster than that in the other parts. Furthermore, the simulated results were compared with the experimental result.