The Geometry of Drop-Formed Vortex Rings

被引：3

作者：

Pena-Polo, Franklin ^{[1
]}

Blanco, Armando ^{[2
]}

Sigalotti, Leonardo Di G. ^{[1
]}

机构：

[1] Inst Venezolano Invest Cient, Ctr Fis, IVIC, Apartado Postal 20632, Caracas 1020A, Venezuela

[2] Univ Simon Bolivar, Dept Mecan, Caracas 1080, Venezuela

来源：

COMPUTATIONAL AND EXPERIMENTAL FLUID MECHANICS WITH APPLICATIONS TO PHYSICS, ENGINEERING AND THE ENVIRONMENT | 2014年

关键词：

MUTUAL SLIP-THROUGH; FREE-SURFACE; WATER DROP; COALESCENCE; GENERATION; FLUID; INTERFACES; PAIR;

D O I：

10.1007/978-3-319-00191-3_17

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Vortex rings are among the most important objects of fluid mechanics for their numerous technological applications. They are common in inviscid and low viscosity fluids and represent the simplest examples of organized structure formation. The coalescence of a drop with a liquid surface is one process that can result in a vortex ring. Although the phenomenon was observed more than a century ago, the appearance of vorticity and its organization into a toroidal vortex have not yet been completely understood. Here we use fast digital video imaging to study the geometry of drop-formed vortices and the dependence of the early drop inflow on the underlying dynamics above the liquid surface.

引用

页码：307 / 314

页数：8

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