Simulation of Virus-Laden Droplets Transmitted from Lung to Lung
Simulation of Virus-Laden Droplets Transmitted from Lung to Lung
复制标题
模拟载有病毒的飞沫从肺传播到肺
DOI：
10.1007/978-3-031-08760-8_30
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Momoha Nishimura
中科院分区：
文献类型：
--
作者：
Shohei Kishi;Yuta Ida;Masashi Yamakawa;Momoha Nishimura
在这项研究中，我们进行了计算流体动力学分析，以估计载有病毒的液滴的轨迹。作为数值模型，准备了两个具有气道的人体模型。这些模型由非结构化网格表示。计算了房间内的不稳定气流后，我们模拟了人类说话时喷出的液滴的轨迹。此外，还模拟了对话伙伴将液滴吸入肺部。分别对鼻腔、口腔、气管、支气管、支气管入口表面附着在伴侣呼吸道内壁的飞沫数量进行计数。还以相同的方式研究了液滴的直径。值得注意的是，对话伙伴吸入的飞沫中 80% 以上粘附在支气管入口表面。此外，对话伙伴没有吸入直径大于 35 μm 的飞沫。研究发现，当两人距离为0.75 m时，伴侣躯干上附着的水滴较多。
In this study, we conducted a computational fluid dynamics analysis to estimate the trajectory of the virus-laden droplets. As numerical models, two human body models with airways were prepared. These models are represented by unstructured grids. Having calculated the unsteady airflow in the room, we simulated the trajectory of droplets emitted by the human speaking. In addition, inhaling the droplets into the lung of the conversation partner was simulated. The number of the droplets adhered to the respiratory lining of the partner was counted separately on the nasal cavity, oral cavity, trachea, bronchi, and bronchial inlet surface. The diameters of the droplets were also investigated in the same manner. It was noticeable that more than 80% of the droplets inhaled by the conversation partner adhered to the bronchial inlet surface. Also, the conversation partner did not inhale droplets larger than 35 μm in diameter. It was found that when the distance between two people was 0.75 m, more droplets adhered to the partner’s torso.
影响因子：
4.5
作者：
Yamakawa M;Kitagawa A;Ogura K;Chung YM;Kim M
通讯作者：
Kim M