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[Numerical analysis of finger temperature distribution in a cold environment]
Summary
This study developed a mathematical model to analyze finger temperature distribution and thermal protection for hands. Wind speed significantly impacts finger temperature, while artery blood temperature has minimal effect.
Area of Science:
- Biomedical Engineering
- Thermal Physiology
- Computational Modeling
Background:
- Understanding hand thermoregulation is crucial for thermal protection.
- Accurate modeling of finger temperature distribution is needed.
Purpose of the Study:
- To establish a mathematical model for thermoregulation of the trunk and hand.
- To provide reference data for hand thermal protection.
Main Methods:
- A mathematical model of human thermoregulation was developed.
- The trunk was segmented into 15 parts, and the hand into palm and 5 fingers.
- Bio-heat equations were solved using the finite element method.
Main Results:
- Wind speed was found to have a significant effect on finger temperature.
- Artery blood temperature showed a minimal influence on finger temperature.
Conclusions:
- The established model and finite element method were validated against existing literature.
- The model is deemed reasonable and the method feasible for analyzing hand thermoregulation.