Visualization study on the transient liquid film behavior and inner gas flow after rupture of a soap bubble

What is the Shape of an Air Bubble on a Liquid Surface?

“…In addition to these better-known sectors, the potential use of bubbles and films has been recently demonstrated in emerging technological domains such as micro [3][4][5][6][7] and nanotechnologies [8][9][10]. Soap bubbles and films have been studied for many years [11,12], with more recent studies concerning their organisation [13,14], electrification [5,15], magnetization [16], wetting [18][19][20], stability [21][22][23], aerodynamics [24] and their mechanical [25] and optical properties [26].…”

“…A fundamental understanding of the behavior of bubbles and liquid films is very important in several fields of industry such as mining, manufacturing, materials, security, and food production. , In addition to these better-known sectors, the potential use of bubbles and films has been recently demonstrated in emerging technological domains such as micro − and nanotechnologies. − Soap bubbles and films have been studied for many years, , with more recent studies concerning their organization, , electrification, , magnetization, wetting, − stability, − aerodynamics, and mechanical and optical properties …”

Equilibrium Shapes and Their Stability for Liquid Films in Fast Flows

“…Our more common experience of making bubbles by blowing on a film is less studied and involves unique complexities. This event has been visualized in recent studies [15,16], and the competition of dynamic and Laplace pressures explains the critical flow speed needed to form bubbles [17]. Still unresolved is the flow-induced reshaping of a film, which even in equlibrium involves nonlinear deformations, incompressible flows into and around the film, and flow separation that forms a wake.…”