[Numerical analysis of finger temperature distribution in a cold environment].
OBJECTIVE
Temperature distribution over the finger was discussed, so as to provide reference for thermal protection of the hand.


METHODS
Mathematical model for thermoregulation of trunk including hands was established. In the model, the trunk was divided into 15 segments and the hand was divided into palm and 5 fingers. The model was presented as a consistent set of bio-heat equations and was solved by a finite element method.


RESULTS
Effect of wind speed on the finger temperature is so evident, while the effect of artery blood temperature on the finger temperature is so little.


CONCLUSIONS
Through the comparison with the result of literature, the establishment of the model was proved to be reasonable and the method feasible.
Sang
Min-jing
MJ
Yuan
Xiu-gan
XG
Qiu
Yi-fen
YF
D001831:Body Temperature / Q000502:physiology*; D001833:Body Temperature Regulation / Q000502:physiology; D003080:Cold Temperature; D005385:Fingers / Q000502:physiology*; D020342:Finite Element Analysis; D006225:Hand / Q000502:physiology*; D006801:Humans; D008954:Models, Biological; D012881:Skin Temperature; D014919:Wind