Simulation of granular jet: Is granular flow really a "perfect fluid?"
arXiv:1206.6932 · doi:10.1103/PhysRevE.86.041308
Abstract
We perform three-dimensional simulations of a granular jet impact for both frictional and frictionless grains. Small shear stress observed in the experiment[X. Cheng et al., Phys. Rev. Lett. 99, 188001 (2007) ] is reproduced through our simulation. However, the fluid state after the impact is far from a perfect fluid, and thus, similarity between granular jets and quark gluon plasma is superficial, because the observed viscosity is finite and its value is consistent with the prediction of the kinetic theory.
8 pages 11 figures(9 figures: text, 2 figures: supplementary material) 2 tables. To be published in Phys. Rev. E
References in corpus (15)
- Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
- Drop Splashing on a Dry Smooth Surface
- Elliptic flow in Au+Au collisions at sqrt(s_NN) = 130 GeV
- Coherent control of an atomic collision in a cavity
- Low-speed impact craters in loose granular media
- Ultrafast Interference Imaging of Air in Splashing Dynamics
- Shocks in supersonic sand
- Critical scaling near jamming transition for frictional granular particles
- Eccentricity fluctuation effects on elliptic flow in relativistic heavy ion collisions
- Transport properties of dense dissipitive hard-sphere fluids for arbitrary energy loss models
- Morphology Scaling of Drop Impact onto a Granular Layer
- Collective behavior in a granular jet: Emergence of a liquid with zero surface-tension
- Non-Gaussian Velocity Distribution Function in a Vibrating Granular Bed
- Renormalized Linear Kinetic Theory as Derived from Quantum Field Theory - a novel diagrammatic method for computing transport coefficients -
- Microscopic dissipation in a cohesionless granular jet impact
Cited by in corpus (8)
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- Still water: dead zones and collimated ejecta from the impact of granular jets
- Jet-induced jammed states of granular jet impacts
- Granular rotor as a probe for a non-equilibrium bath
- Head-on collisions of dense granular jets
- Particle flows around an intruder