Signatures of the hydrodynamic dead zone in multiphase geophysical flows impacting a rigid obstacle

All data for a manuscript titled 'Signatures of the hydrodynamic dead zone in multiphase geophysical flows impacting a rigid obstacle'. This study employs a coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) approach to examine the complicated three-way interactions among the in-flow debris, the emerging the hydrodynamic dead zone, and the obstacle. A geophysical flow is considered as a mixture comprised of gap-graded particles and a viscous liquid. The progressive formation of HDZ and key debris-structure interactions predicted by this method is mainly consistent with experimental observations under the Froude similarity.