CFD simulation of aerosol removal in pool scrubbing using an Euler-Euler approach

Abstract

Pool scrubbing is a key mitigation mechanism for limiting radioactive aerosol release under nuclear reactor accident conditions. Its effectiveness is governed by the coupled dynamics of bubble rise and aerosol transport in the gas phase, with centrifugal impaction, gravitational sedimentation, and Brownian diffusion as the dominant removal mechanisms. While computational fluid dynamics (CFD) provides a suitable framework for resolving these interactions, detailed CFD studies of aerosol removal in pool scrubbing remain scarce.