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Breakup of a drop on collision with an obstacleстатья
- Авторы: Rozhkov A.N., Prunet-Foch B., Vignes-Adler M.
- Сборник: Физическое и математическое моделирование процессов в геосредах: Шестая международная научная конференция-школа молодых ученых; Москва, 21-23 октября 2020 г., Сборник материалов
- Глава в коллективной монографии
- Год издания: 2020
- Место издания: ООО «ПРИНТ ПРО» Москва
- Первая страница: 27
- Последняя страница: 29
- Аннотация: Airborne infection is known to be the main route of the virus spreading. When a person sneezes, a large amount (up to 50,000) of drops of mucus and saliva are released. The droplet veloc-ity can be very high up to 40 m/s (various authors give values 4.5 100 m/s), and droplets travel up to 4 m. The fate of the ejected droplets can be roughly described as follows: droplets with a di-ameter of more than 5 μm settle quickly under the influence of gravity, while droplets less than 5 μm can remain in the air for long time and carried by air currents. When a large droplet of liquid hits the solid material of a mask or filter, it can breakup into several smaller droplets, thus creating a new source of dangerous infection. The present work was undertaken to answer the question of whether it is possible to breakup of relatively large liquid droplets into smaller ones when colliding with solid obstacles and, if possible, what are the conditions and features for such transformations. On the oth-er hand the droplet breakup as a result of droplets collision with solid obstacles is a key element of a number of modern technologies [1 4], therefore, the work has not only medical focus.
- Добавил в систему: Рожков Алексей Николаевич