Hydrodynamic fluctuations and averaging problems in dense granular flows

Clara Saluena; Sergei E. Esipov; Thorsten Poeschel

doi:10.1117/12.274205

9 May 1997 Hydrodynamic fluctuations and averaging problems in dense granular flows

Clara Saluena, Sergei E. Esipov, Thorsten Poeschel

Author Affiliations +

Proceedings Volume 3045, Smart Structures and Materials 1997: Passive Damping and Isolation; (1997) https://doi.org/10.1117/12.274205
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

The properties of dense granular systems are analyzed from a hydrodynamical point of view, based on conservation laws for the particle number density and linear momentum. We discuss averaging problems associated with the nature of such systems and the peculiarities of the sources of noise. We perform a quantitative study by combining analytical methods and numerical results obtained by ensemble-averaging of data on creep during compaction and molecular dynamics simulations of convective flow. We show that numerical integration of the hydrodynamic equations gives the expected evolution for the time-dependent fields.

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Clara Saluena, Sergei E. Esipov, and Thorsten Poeschel "Hydrodynamic fluctuations and averaging problems in dense granular flows", Proc. SPIE 3045, Smart Structures and Materials 1997: Passive Damping and Isolation, (9 May 1997); https://doi.org/10.1117/12.274205

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