Volume Conservation Methods for VOF-Based Long-Term Simulations of Turbulent Bubble-Laden Flows on Coarse Grids
摘要
Turbulent bubble-laden flows are an integral part of numerous technical applications. Due to the computational cost of Direct Numerical Simulation, Large Eddy Simulation (LES) comes into focus for the design of such devices. One of the central challenges for two-phase LES is the under-resolution of the interface dynamics, which leads to a variety of issues with numerical algorithms for two-phase flows. This work discusses the violation of volume conservation in the context of Volume-of-Fluid (VOF)-based simulations of turbulent bubble-laden channel flows.