Human exhalation characterization with the aid of schlieren imaging technique

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• 作者：Chunwen Xu^a ; ^b ; ^{cxu@upc.edu.cn} ; Peter V. Nielsen^b ; Li Liu^b ; Rasmus L. Jensen^b ; Guangcai Gong^c
• 关键词：Disease transmission ; Schlieren photography ; Exhaled airflow ; Propagation velocity ; Airflow interaction
• 刊名：Building and Environment
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：112
• 期：Complete
• 页码：190-199
• 全文大小：2203 K
• 卷排序：112

文摘

Noninvasive schlieren technique was applied to characterize human exhalation. New methods were proposed to predict exhaled velocity um and up, respectively. Potential infection risk depended on breathing patterns and spatial distribution of exhaled air. New data was added to airflow dynamics of human breathing and CFD boundary settings.