Repacking in Compacting Mushes at Intermediate Melt Fractions: Constraints from Numerical Modeling and Phase Separation Experiments on Granular Media

Abstract

Continuum model fits repacking experiments data of Hoyos et al.(2022) despite their stochastic nature. • At intermediate melt fractions, mechanical repacking of particles may contribute significantly to the resistance of mushes to compaction. • Particle-particle friction, rather than hydrodynamic effects, dominates viscous resistance associated with mechanical repacking.