冠状病毒在沉积在固体表面的呼吸道飞沫中存活的可能性
Likelihood of survival of coronavirus in a respiratory droplet deposited on a solid surface
摘要：
我们预测并分析了COVID-19感染者的呼吸道飞沫的干燥时间，这是感染另一个受试者的关键时间。液滴的干燥是由扩散限制的蒸发模型预测的固着液滴放置在部分润湿的表面与钉扎接触线。考虑了液滴体积、接触角、环境温度和湿度的变化。我们根据液滴在几种条件下的寿命分析了液滴中存在的病毒的存活机会，并发现病毒的存活机会受到这些参数中的每一个的强烈影响。使用该模型计算的液滴内的剪切应力的大小不足以消除病毒。我们还探索了五个不同城市的水滴干燥时间与COVID-19传播增长率之间的关系，发现它们之间的相关性很弱。
英文摘要：
We predict and analyze the drying time of respiratory droplets from a COVID-19 infected subject, which is a crucial time to infect another subject. The drying of the droplet is predicted by diffusion-limited evaporation model for a sessile droplet placed on a partially-wetted surface with a pinned contact line. The variation of droplet volume, contact angle, ambient temperature, and humidity are considered. We analyze the chances of the survival of the viruses present in the droplet, based on the lifetime of the droplets in several conditions, and find that the chances of survival of the virus are strongly affected by each of these parameters. The magnitude of shear stress inside the droplet computed using the model is not large enough to obliterate the virus. We also explore the relationship between the drying time of a droplet and the growth rate of the spread of COVID-19 for five different cities, and find that they are weakly correlated.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
