Results 31 to 40 of about 6,034 (257)
Granular gases of rough spheres: Velocity, rotation and collision statistics from in-situ measurements, optical data and simulations [PDF]
EPJ Web of ConferencesGranular gases are not only of interest in fundamental physics, but they can also serve as a test ensembles for the validity of collision models employed in (loose) granular matter.
Harth Kirsten +6 more
doaj +1 more source
Instability in shocked granular gases
Journal of Physics: Conference Series, 2014 Shocks in granular media, such as vertically oscillated beds, have been shown to develop instabilities. Similar jet formation has been observed in explosively dispersed granular media. Our previous work addressed this instability by performing discrete-particle simulations of inelastic media undergoing shock compression.
Sirmas, Nick +2 more
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Dynamical collision network in granular gases [PDF]
Physical Review E, 2007 We dynamically construct the interaction network in a granular gas, using the sequence of collisions collected in an MD event driven simulation of inelastic hard disks from time 0 till time t. The network is decomposed into its k-core structure: particles in a core of index k have collided at least k times with other particles in the same core.
J Ignacio AlvarezHamelin, Andrea Puglisi
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Cooling of 3D granular gases in microgravity experiments
EPJ Web of Conferences, 2017 Granular gases are a most peculiar state, superficially similar to molecular gases: They are loose ensembles of moving grains, rarely interacting with each other and with container walls.
Harth Kirsten +3 more
doaj +1 more source
Gaussian kinetic model for granular gases [PDF]
Physical Review E, 2004 to be submitted to Phys.
Dufty, James W. +2 more
openaire +3 more sources
Dynamics of rarefied granular gases
Physical Review E, 2002 This paper presents quite general bidimensional gas-dynamic equations--derived from kinetic theory-which include the fourth cumulant kappa(r,t) as a dynamic field. The dynamics describes a low-density system of inelastic hard spheres (disks) with normal restitution coefficient r.
Risso, D, Cordero, P
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Geophysical Research Letters, 2016 A coherent Doppler profiler was used to measure coincident time series of velocity (u,w), sediment mass concentration (c), and sediment grain size (d), above mobile sand dunes in unidirectional flow (∼1 m/s, ∼1 m water depth).
G. W. Wilson, A. E. Hay
doaj +1 more source
Hydrodynamics and rheology of a dilute granular plane Couette flow [PDF]
EPJ Web of ConferencesWe simulate the plane Couette flow of a dilute granular gas using the Direct Simulation Monte Carlo method. We calculate relevant hydrodynamic and rheological quantities and highlight the effects of driving shear rate and inelasticity on them.
Gupta Ronak, Alam Meheboob
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Granular gases with elongated particles on an air table [PDF]
EPJ Web of ConferencesWe investigate pseudo two-dimensional homogeneous granular gases made of elliptical particles on an air table. The air flow both suspends the particles and provides them translational and rotational energy.
Sadah Rawad +3 more
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Frontiers in Mechanical Engineering, 2022 Single and multi-phase fluids fill the pore space in sediments; phases may include gases (air, CH4, CO2, H2, and NH3), liquids (aqueous solutions or organic compounds), and even ice and hydrates.
Qi Liu, J. Carlos Santamarina
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