Strain of of a bubble's surface interface during vibrations

[StretchySurface]

TL;DR Summary

I am wondering what the strain-field of an interface looks like.

Imagine a bubble vibrating in air. Because it vibrates, it's interfacial area increases, thus new molecules are added and removed from the surface as it vibrates.

Consider a molecule is initially at position X_0 at the interface, and over a certain amount of time molecules squeeze and disappear from to the interface. What governs the dynamics of the molecule at X_0.

I am not so interested in the molecular interactions. I am more concerned with the belt view of a interfacial element! What are the dynamics of an interfacial element considering the interface is vibrating.

 

[Valerie Park]

The dynamics of an interfacial element at position X_0 are determined by the forces acting on it. This includes forces caused by the vibration of the bubble, such as pressure and shear forces, as well as any external forces, such as gravity, applied to the interface. Additionally, molecular interactions at the interface, such as van der Waals forces and hydrogen bonds, will also affect the dynamics of the element. The net effect of all these forces will determine the movement of the element over the period of time.