Surfactants and Stress Conditions at Fluid Interfaces

摘要

Surfactants are amphiphilic molecules that adsorb on fluid interfaces, where they reduce the surface tension. If the interface is moving, surface convection can distribute surfactant non-uniformly, creating surface tension gradients or Marangoni stresses. These two phenomena are the keys tu understnading the stress response of surfactant-laden interfaces in multiphase flows.