Moment-of-Fluid Method in Action

Moment-of-fluid (MoF) method, a new volume-tracking multi-material/multi-phase flow simulation method, is presented. Contrast to the Volume-of-Fluid (VoF) method that uses only volume fraction data for advection and interface reconstruction, the MoF method utilizes moment data, namely the volume fraction as well as the centroid of each material in the mixed cells (i.e. cells containing multiple materials). Based on the the moment data of each material, the material interfaces are reconstructed with second order accuracy in a strictly conservative manner. The MoF method is coupled with Stabilized Finite Element based incompressible Navier-Stokes solver for two materials. The effectiveness of MoF method is demonstrated with several test cases including Rayleigh-Taylor instability, rising bubble, and broken dam problems.