A particle-substrate numerical model for a quasi-2D driven dissipative granular gas

Meenakshi Dutt, R. P. Behringer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A complete understanding of the microscopic dynamics of a monolayer of identical spheres moving on a substrate must encompass the effects of collisions and the substrate on the particles. We begin from first principles by considering collections of spherical frictional particles that roll and slip on a flat horizontally vibrated substrate. We present a numerical model which accounts for the substrate motion, collisional and surface frictional dissipation and their influence on particle dynamics for a quasi 2-dimensional dilute granular gas. In such systems, the ratio of the substrate acceleration to the particlesubstrate static frictional force (Kondic, Phys Rev. E (1999)) dominates the individual particle dynamics and the collision dynamics. This model is an extension of a previous numerical model which accounted for the influence of the collisional and substrate dissipation on a quasi two-dimensional cooling granular gas (Dutt Behringer, Phys. Rev. E (2004)). We willpresent results from our numerical experiments which highlight the progression of dynamical variables and fluctuation velocity distributions as a function of the initial conditions and the driving acceleration.

Original languageEnglish (US)
Title of host publicationPowders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media
Pages1112-1115
Number of pages4
DOIs
StatePublished - Nov 27 2009
Externally publishedYes
Event6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 - Golden, CO, United States
Duration: Jul 13 2009Jul 17 2009

Publication series

NameAIP Conference Proceedings
Volume1145

Other

Other6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009
CountryUnited States
CityGolden, CO
Period7/13/097/17/09

Fingerprint

gases
dissipation
collisions
progressions
slip
velocity distribution
cooling

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Dutt, M., & Behringer, R. P. (2009). A particle-substrate numerical model for a quasi-2D driven dissipative granular gas. In Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media (pp. 1112-1115). (AIP Conference Proceedings; Vol. 1145). https://doi.org/10.1063/1.3179841
Dutt, Meenakshi ; Behringer, R. P. / A particle-substrate numerical model for a quasi-2D driven dissipative granular gas. Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. 2009. pp. 1112-1115 (AIP Conference Proceedings).
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Dutt, M & Behringer, RP 2009, A particle-substrate numerical model for a quasi-2D driven dissipative granular gas. in Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. AIP Conference Proceedings, vol. 1145, pp. 1112-1115, 6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009, Golden, CO, United States, 7/13/09. https://doi.org/10.1063/1.3179841

A particle-substrate numerical model for a quasi-2D driven dissipative granular gas. / Dutt, Meenakshi; Behringer, R. P.

Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. 2009. p. 1112-1115 (AIP Conference Proceedings; Vol. 1145).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Dutt M, Behringer RP. A particle-substrate numerical model for a quasi-2D driven dissipative granular gas. In Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. 2009. p. 1112-1115. (AIP Conference Proceedings). https://doi.org/10.1063/1.3179841