Transition from Exponentially Damped to Finite-Time Arrest Liquid Oscillations Induced by Contact Line Hysteresis

Dollet, BenjaminLorenceau, EliseGallaire, Francois2020-04-022020-04-022020-04-022020-03-1310.1103/PhysRevLett.124.104502https://infoscience.epfl.ch/handle/20.500.14299/167778WOS:000519718100013To clarify the role of wetting properties on the damping of liquid oscillations, we studied the decay of oscillations of liquid columns in a U-shaped tube with controlled surface conditions. In the presence of sliding triple lines, oscillations are strongly and nonlinearly damped, with a finite-time arrest and a dependence on initial amplitude. We reveal that contact angle hysteresis explains and quantifies this solidlike friction.Physics, MultidisciplinaryPhysicsdynamicssurfacedropsmotionwavesflowTransition from Exponentially Damped to Finite-Time Arrest Liquid Oscillations Induced by Contact Line Hysteresistext::journal::journal article::research article