Modelling of free bubble growth with Interface Capturing Computational Fluid Dynamics

Abstract This paper presents simulations of the growth stationary and rising vapour bubbles in an extend pool liquid using Interface Capturing Computational Fluid Dynamics (CFD) methodology coupled with a method for simulating interfacial mass transfer at vapour-liquid interface. The model enables mechanistic prediction local rate phase change interface is applicable to realistic cases involving two-phase mixtures large density ratios. simulation based on Volume (VOF) representation flow, whereby region which occurs implicitly identified by indicator, this case volume fraction liquid, varies from value pertaining “bulk” bulk vapour. novel proposed here has been implemented Finite framework solution methods typical “industrial” CFD practice embedded OpenFOAM toolbox. Simulations are validated via comparison against experimental observations spherical bubble zero gravity normal gravity. validation represent severe test methodologies due ratios, presence strong evaporation upward rise motion. Agreement results measurements available literature demonstrates that detailed herein modelling driven phase-change real fluids.