A phase inversion benchmark for multiscale multiphase flows
Language
EN
Article de revue
This item was published in
Journal of Computational Physics. 2022-02-01, vol. 450
English Abstract
A series of benchmarks based on the physical situation of “phase inversion” between two immiscible liquids is presented. These benchmarks aim at progressing towards the direct numerical simulation of two-phase flows. Several ...Read more >
A series of benchmarks based on the physical situation of “phase inversion” between two immiscible liquids is presented. These benchmarks aim at progressing towards the direct numerical simulation of two-phase flows. Several CFD codes developed in French laboratories and using either Volume-of-Fluid or Level-Set interface tracking methods are used to provide physical solutions of the benchmarks, convergence studies and code comparisons. Two typical configurations are retained, with integral scale Reynolds numbers of 1.37104 and 4.33105, respectively. The physics of the problem are probed through macroscopic quantities such as potential and kinetic energies, or enstrophy. In addition, scaling laws for the temporal decay of the kinetic energy are derived to check the physical relevance of the simulations. Finally the droplet size distribution is probed. Additional test problems are also reported to estimate the influence of viscous effects in the vicinity of the interface.Read less <
English Keywords
Atomization
Level-Set method
Multiphase flow benchmark
Phase inversion flow
Volume of Fluid method
Water-oil flow
ANR Project
Modélisation et Simulation Multi-échelle des Interfaces - ANR-11-MONU-0011