著者

細谷 直人 山川 勝史 松野 謙一

出版者

一般社団法人 日本機械学会

雑誌

流体工学部門講演会講演論文集 2013 (ISSN:24242896)

巻号頁・発行日

pp._G0401-01_-_G0401-02_, 2013-11-09 (Released:2017-06-19)

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The most difficult way to prevent infection among some infection routes is viral droplet nuclei transmission. Droplet nuclei are generated during coughing and sneezing, and suspend for a long time. Hence, specifying its infection route is important issue. The behavior of the droplets is governed by the physical principles. In addition, environmental factors, such as temperature, relative humidity and droplet size, also affect their dispersion and determining the survival. Thus, in this paper, first airflow in the crowded train was analyzed by using CFD.

著者

山川 勝史 岩崎 遼一 細谷 直人 松野 謙一

出版者

一般社団法人 日本機械学会

雑誌

年次大会 2013 (ISSN:24242667)

巻号頁・発行日

pp._G051035-1-_G051035-4, 2013-09-08 (Released:2017-06-19)

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In this paper, numerical simulation for influenza infection was conducted using difference between air-flow course and virus-moving course. An alteration of radius of virus droplet changes sedimentation velocity. Then, the radius is affected by temperature and humidity around droplets. Flying virus drops may combine to other droplets. The repetition of the combination between droplets affects the sedimentation velocity of the droplet. Furthermore, using survival rate of influenza virus and human resistance, more realistic simulation is enabled. In this paper, the effectiveness of the method was shown carrying out infection simulation in an indoor environment.