Integration through transients for inelastic hard sphere fluids
W. Till Kranz, Fabian Frahsa, Annette Zippelius, Matthias Fuchs, Matthias Sperl
Abstract
Granular flows naturally occur at high densities and significant shear rates. A kinetic theory, applicable at high densities and arbitrary shear rates, predicting the viscosity of an inelastic hard sphere fluid over many orders of magnitude is proposed. It explains the origin of Newtonian, shear thinning, as well as shear thickening behavior, i.e., Bagnold scaling in granular fluids.
Topics & Concepts
Shear (geology)ScalingMechanicsPhysicsShear rateDilatantKinetic energyClassical mechanicsViscosityShear flowHard spheresGranular materialScaling lawShear stressMaterials scienceSPHERESThickeningShear viscosityStatic frictionRange (aeronautics)RheologySimple shearTurbulenceRheology and Fluid Dynamics StudiesPhase Equilibria and ThermodynamicsMaterial Dynamics and Properties