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Kullback–Leibler Divergence of a Freely Cooling Granular Gas
Entropy, 2020 Finding the proper entropy-like Lyapunov functional associated with the inelastic Boltzmann equation for an isolated freely cooling granular gas is a still unsolved challenge.
Alberto Megías, Andrés Santos
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Stability of the homogeneous steady state for a model of a confined quasi-two-dimensional granular fluid [PDF]
EPJ Web of Conferences, 2021 A linear stability analysis of the hydrodynamic equations of a model for confined quasi-two-dimensional granular gases is carried out. The stability analysis is performed around the homogeneous steady state (HSS) reached eventually by the system after a ...
Garzó Vicente +2 more
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AI-aided visual data analysis for granular gases: Complex particles, high density, and other challenges [PDF]
EPJ Web of ConferencesMicrogravity experiments with three-dimensional (3D) granular gases, i.e., ensembles of freemoving macroscopic particles which collide inelastically, produce large amounts of stereo video footage which require processing and analysis.
Puzyrev Dmitry +5 more
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Translations and Rotations Are Correlated in Granular Gases [PDF]
Physical Review Letters, 2007 4 pages, 4 ...
Brilliantov, Nicolai V. +3 more
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Towards anH-theorem for granular gases [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2015 The $H$-theorem, originally derived at the level of Boltzmann non-linear kinetic equation for a dilute gas undergoing elastic collisions, strongly constrains the velocity distribution of the gas to evolve irreversibly towards equilibrium. As such, the theorem could not be generalized to account for dissipative systems: the conservative nature of ...
Garcia de Soria, Maria Isabel +5 more
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Dynamics of cooling in Viscoelastic Granular Gases [PDF]
EPJ Web of ConferencesWe carry out computational study of pattern formation during cooling in assemblies of inelastically colliding granular particles, under force free condition. Typically, in such systems, following a homogeneous cooling phase, a crossover occurs to a phase
Pathak Purnendu +2 more
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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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Bifurcation diagram for compartmentalized granular gases [PDF]
Physical Review E, 2001 The bifurcation diagram for a vibro-fluidized granular gas in N connected compartments is constructed and discussed. At vigorous driving, the uniform distribution (in which the gas is equi-partitioned over the compartments) is stable. But when the driving intensity is decreased this uniform distribution becomes unstable and gives way to a clustered ...
van der Meer, Devaraj +2 more
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Optimal Control of Uniformly Heated Granular Fluids in Linear Response
Entropy, 2022 We present a detailed analytical investigation of the optimal control of uniformly heated granular gases in the linear regime. The intensity of the stochastic driving is therefore assumed to be bounded between two values that are close, which limits the ...
Natalia Ruiz-Pino, Antonio Prados
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Collision rates in charged granular gases [PDF]
Granular Matter, 2002 Submitted to "Granular Matter"
Scheffler, Tim, Wolf, Dietrich
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