Development of Numerical Comfort Simulator for Thermal Environment

1.对65MN温度调节模型进行了修改：1)模拟在炎热气候条件下有效的AVA纹路；2)模拟体型和年龄差异，以模拟年轻人到老年人、男性和女性；3)模拟衣物层中的水分传输。为了验证模型的准确性，在瞬变热条件下进行了主观实验。所开发的模型，REAL能够重现与主观实验相似的结果。根据已知热参数的中庭实验结果，提出了一种新的分析方法来模拟暖体假人与周围热环境之间的详细换热。在同一中庭进行了主观实验，并与体温调节模型和CFD的联合分析结果进行了比较。该模型能够在平均皮肤温度相差1℃的范围内再现与主观实验相似的结果。四肢的差异往往大于躯干。针对暂态和非对称热环境的评价，提出了热测量装置的技术指标。研制了全波(0.3-40μm)辐射计移动式测量小车。提出了坐姿人体和站立人体六种定向辐射的权重因子，并与前人的研究结果进行了比较。研究了腰部皮肤温热对健康大学生胃动力、血压和腹主动脉管径的影响。结果表明，血管收缩引起的胃血流变化和腰部皮肤温热扩张引起的胃血流变化激活了消化间期移行运动复合体，但血管收缩先于血管扩张的可能性仍有待探索。

1. Modifications were made to the 65MN thermoregulation model : 1) Modeling of AVA veins that become effective under hot climatic conditions, 2) Modeling of body size and age differences to enable simulation of the young to the elderly, males and females, 3) Modeling of moisture transport in the clothing layer. Subjective experiments were conducted under transient thermal conditions to validate the accuracy of the models. The developed model, REAL was able to reproduce similar results to the subjective experiment.2. A new analysis method was proposed to simulate the detailed heat exchange between thermal manikin and the surrounding thermal environment from the results of the experiments in an atrium where all the thermal parameters were known. Subjective experiment was conducted in the same atrium and results were compared with the combined analysis of thermoregulation model and CFD. The model was able to reproduce similar results with the subjective experiment within 1℃ difference in mean skin temperature. Differences tended to be larger in the extremities than in the trunk.3. Specifications of thermal measurement device were proposed to evaluate transient and asymmetric thermal environment. Mobile measurement cart with all-wave (0.3-40μm) radiometers was developed. Weighting factors of six directional radiations for seated and standing human bodies were proposed and compared with the earlier studies.4. Effects of lumbar skin warming on gastric motility, blood pressure, and diameters of the abdominal arteries were examined in healthy college students. The results showed that changes in gastric blood flow due to vasoconstriction and following vasodilatation by lumbar skin warming activates interdigestive migrating motor complex, although a possibility of vasoconstriction preceding vasodilatation is still to be explored.