Both beer and shampoo have polar molecules that accumulate at a liquid-gasinterface, but the mechanisms that prevent bubble collapse in soap foams or pilsner heads are fundamentally different.
A model of mass transfer coefficients in liquid phase near free gas-liquidinterface is developed based on the energy spectrum functions of isotropic turbulence.
The saturation of these compartments with liquid hydrocarbons and the subsequent oil-to-gas reaction causes the expulsion of free water, resulting in a gas accumulation without gas-water interface.