Results 11 to 20 of about 505,681 (289)
Mathematical Investigation of 1D Discontinuity Waves in Dilute Granular Gases
Mathematics, 2023 The propagation of acceleration waves in dilute granular gases was investigated. Acceleration waves propagating in elastic gases, mixtures, and other materials are widely studied in the literature, but not in granular gases.
Elvira Barbera, Annamaria Pollino
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Velocity Distributions in Dissipative Granular Gases [PDF]
Physical Review Letters, 2004 Motivated by recent experiments reporting non-Gaussian velocity distributions in driven dilute granular materials, we study by numerical simulation the properties of 2D inelastic gases. We find theoretically that the form of the observed velocity distribution is governed primarily by the coefficient of restitution $η$ and $q=N_H/N_C$, the ratio between
van Zon, J.S., Mac Kintosh, F.C.
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Lack of collective motion in granular gases of rotators [PDF]
New Journal of Physics, 2022 The dynamics of gases made of particles interacting dissipatively—known as granular gases —can be fully described by the translational and rotational motion of the individual particles; however, most of the results in the field refer to the limit of ...
Harol Torres Menéndez +3 more
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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
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Continuum modelling of granular particle flow with inelastic inter-particle collisions [PDF]
, 2003 The kinetic theory of granular flow is a successful model for gas-solid flows. However, inelastic collisions between particles, among other mechanisms, cause agglomeration of particles, which may be the reason why undue sensitivity of the model to any ...
Zhang, Y.H., Reese, J.M.
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Model for collisions in granular gases [PDF]
Physical Review E, 1996 We propose a model for collisions between particles of a granular material and calculate the restitution coefficients for the normal and tangential motion as functions of the impact velocity from considerations of dissipative viscoelastic collisions. Existing models of impact with dissipation as well as the classical Hertz impact theory are included in
Brilliantov, Nikolai V. +3 more
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Kinetic approach to granular gases [PDF]
Physical Review E, 1999 33 pages including 25 figures, submitted to Phys.Rev ...
A. PUGLISI +3 more
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Hydrodynamic modes for granular gases [PDF]
Physical Review E, 2003 The eigenfunctions and eigenvalues of the linearized Boltzmann equation for inelastic hard spheres (d=3) or disks (d=2) corresponding to d+2 hydrodynamic modes, are calculated in the long wavelength limit for a granular gas. The transport coefficients are identified and found to agree with those from the Chapman-Enskog solution.
Dufty, James W., Brey, J. Javier
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Relative entropy of freely cooling granular gases. A molecular dynamics study [PDF]
EPJ Web of Conferences, 2021 Whereas the original Boltzmann’s H-theorem applies to elastic collisions, its rigorous generalization to the inelastic case is still lacking. Nonetheless, it has been conjectured in the literature that the relative entropy of the velocity distribution ...
Megías Alberto, Santos Andrés
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Hydrodynamic Transport Coefficients of Granular Gases [PDF]
, 2001 Some transport properties of granular gases are investigated. Starting from a kinetic theory level of description, the hydrodynamic transport equations to Navier-Stokes order are presented.
Brey Abalo, José Javier +1 more
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