Supercritical shallow granular flow through a contraction: experiment, theory and simulation

Reservoir formation in shallow granular flows through a contraction

Granular shear flow dynamics and forces: experiment and continuum theory.

We analyze the main features of granular shear flow through experimental measurements in a Couette geometry and a comparison to a locally Newtonian, continuum model of granular flow. The model is based on earlier hydrodynamic models, adjusted to take into account the experimentally observed coupling between fluctuations in particle motion and mean-flow properties. Experimentally, the local velo...

Issues in Active Flow Control : Theory , Control , Simulation , and Experiment ∗

The goal of this paper is to provide a perspective on the current status and future directions for active flow-control technology with particular emphasis on oscillatory control. This is not a comprehensive review of the literature; rather, certain issues that are often neglected in studies are highlighted showing their importance or impact on the reported observations and targeted outcomes. Fe...

Susceptibility in Granular Superconductors : Theory and Experiment

A phenomenological theory to describe the electromagnetic properties of granular superconductors, based on known bulk superconductors expressions and conventional Josephson’s junctions tunneling currents, is presented and successfully used to fit distinct experimental results for the magnetic susceptibility χ as a function of the temperature and the applied magnetic field of rather different sa...

Physically Accurate Granular flow Simulation

Discrete element simulation models large collections of solid bodies as individual bodies, rather than attempt to approximate the system via continuum models and partial differential equations. However, standard models for rigid bodies are inadequate as they do not incorporate elastic vibrations. An alternative to both rigid body models and finite element simulations is presented that is highly...