Author(s)

J. Dai, J.D. Sterling & A. Nadim

Abstract

Numerical simulation of air bubbles rising in water using an axisymmetric VOF method J. Dai, J.D. Sterling & A. Nadim Keck Graduate Institute, Claremont, CA, USA Abstract Multiphase flows occur in numerous technological and environmental applications. However, the diversity of flow types makes a general description of such flows impossible, necessitating fundamental research in this area. Understanding the motion of gas bubbles in a liquid is a problem of both scientific and engineering importance. The rise of a single bubble of air through water, for which experimental data have been published, is also a good test problem for CFD code validation. In this paper, a volume of fluid (VOF) method is used to simulate fuid flow and track the interface. We present a piecewise linear interface calculation (PLIC) method in axisymmetric geometries, which is somewhat more complex than the corresponding procedure for reconstructing a planar interface on Cartesian grids that has been described in two and th

Keywords