The compressible granular collapse in a fluid as a continuum: validity of a Navier-Stokes model with \(\mu(J)\)-\(\phi(J)\)-rheology

• Published in: arXiv.org
• Main Author: Rauter, Matthias
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 15.02.2021
• Subjects: Compressibility; Computational fluid dynamics; Conservation equations; Dilatancy; Drag; Fluid flow; Hydroplaning; Incompressible flow; Pore water pressure; Rheological properties; Rheology; Scaling laws; Stokes number; Turbidity

The incompressible \(\mu(I)\)-rheology has been used to study subaerial granular flows with remarkable success. For subaquatic granular flows, drag between grains and the pore fluid is substantially higher and the physical behaviour is more complex. High drag forces constrain the rearrangement of gr...