Ultrasound-enhanced mass transfer during single-bubble diffusive growth
Álvaro Moreno Soto, Pablo Peñas, Guillaume Lajoinie, Detlef Lohse, Devaraj van der Meer
Abstract
The effect of ultrasound on the diffusive growth of a single spherical bubble growing on a substrate in supersaturated carbonated water is quantified. It is found that the diffusive growth of surface bubbles can be easily enhanced by 2 orders of magnitude during volumetric resonance. This convective growth is shown to be caused by vigorous acoustic microstreaming arising from the nonspherical bubble oscillations.
Topics & Concepts
SupersaturationBubbleMass transferConvectionMaterials scienceMechanicsDiffusionThermodynamicsSubstrate (aquarium)ChemistryLiquid bubbleSurface (topology)Convective flowSurface diffusionMixing (physics)Mass transportGrowth rateChemical physicsIntensity (physics)Current (fluid)CavitationUltrasound and Cavitation PhenomenaUltrasound and Hyperthermia ApplicationsInnovative Microfluidic and Catalytic Techniques Innovation