The Delay in Cavity Formation in the Intrusive Mode of Coalescence of a Freely Falling Drop with a Target Liquid

Chashechkin, Y.D.; Ilinykh, A.Y.

Авторы: Chashechkin Yu D., Ilinykh A.Yu
Журнал: Doklady Physics
Том: 66
Номер: 1
Год издания: 2021
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 20
Последняя страница: 25
Оригинальные версии: Задержка формирования каверны в интрузивном режиме слияния свободно падающей капли с принимающей жидкостью
DOI: 10.1134/s102833582101002x
Аннотация: For the first time, the dynamics of the formation of a cavity in the intrusive mode of merging of a freely falling drop, when the drop smoothly flows into the target fluid, has been traced by the methods of photo- and video recording. The cavity begins to form when the bottom of the droplet is submerged when the confluence line contracts to the center of the flow and, at the same time with the destruction of the droplet surface, the surface of the target fluid is restored. Wherein, the orientation of thin flows - ligaments, formed in the vicinity of the confluence line, changes. In the initial phase, they are directed outward and distribute the momentum and energy of the drop over the entire surface of the intrusion. The contraction of the merging line leaves the transmitted energy and momentum of the droplet at the contact patch. If the kinetic energy of the falling droplet noticeably exceeds the potential surface energy, the cavity begins to form at the initial contact and deepens during the entire coalescence process, capturing the droplet matter.
Добавил в систему: Ильиных Андрей Юрьевич

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The Delay in Cavity Formation in the Intrusive Mode of Coalescence of a Freely Falling Drop with a Target Liquidстатья Исследовательская статья

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