紊流度影响人体吹风感的原因综述

Review of the Effect of Turbulence Intensity on Draft Sensation

吹风感是空调房间内经常被人们抱怨的不舒适感之一。紊流度是吹风气流中影响吹风感的一个因素,已被实验所证实,但紊流度影响吹风感的机理并没有统一的、明确的解释。本文对此方面的研究进行了分析总结,目前已有的研究中,紊流度增大导致吹风感增强的原因有两种解释,笔者认为都存在着实验证明不足的问题,理论方面也缺乏更详尽的解释,需要进一步的人体吹风感实验,测量不同紊流度下皮肤温度的逐时数据,并对紊流度影响吹风感的机理以及吹风感的评价指标和模型完善进行更深入的探讨。

People have been already aware of that the feeling of blowing in air condition room complained by people makes us uncomfortable. The turbulence intensity has an effect on the sensation of draught, which has been already confirmed by experiment test. However, there is no unified and clear explanation about the mechanism that the turbulence affects on the draft sensation at present. The purpose of this article is to analyze and sum up the previous studies about this area. Among the existing investigation, the reasons that the higher turbulence leads to the greater draft sensation contain two aspects. The author thinks that the above two explanations exist the problem of lacking in experimental proof and more detailed explanation in theory, so it is necessary to do further draft sensation experiments for measuring the hourly skin temperature in different turbulence intensities. Besides, the mechanism of the turbulence affects on the draft sensation, the improvement of evaluation index and model are also needed for more in-depth discussion.