期刊
INDOOR AIR
卷 25, 期 2, 页码 188-197出版社
WILEY
DOI: 10.1111/ina.12129
关键词
Breathing; Manikin; Human subjects; Constant temperature anemometer; Mean peak velocity; CFD
类别
资金
- China Scholarship Council (CSC)
- Hunan Provincial Innovation Foundation for Postgraduate [CX2012B131]
- National Special Program of International Cooperation and Exchange [2010DFB63830]
- National Natural Science Foundation of China [51378186]
Due to scarcity of accurate information and available data of actual human breathing, this investigation focuses on characterizing the breathing dynamic process based on the measurement of healthy human subjects. The similarities and differences between one breathing thermal manikin and the human subjects, including geometry and breathing functions, were thoroughly studied. As expected, actual human breathing is more complicated than that of the manikin in terms of airflow fluctuations, individual differences, and exhaled flow directions. The simplification of manikin mouth structure could result in overestimated exhaled velocity and contaminant concentration. Furthermore, actual human breathing appears to be relatively stable and reproducible for an individual person in several conditions and is also accompanied by some uncertainties simultaneously. The averaged values are used to analyze the overall characteristics of actual human breathing. There are different characteristics of the exhaled breath between male and female subjects with or without wearing a nose clip. The experimental results obtained from the measurement of human subjects may be helpful for manikin specification or validation and accuracy assessment of CFD simulations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据