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 language | English (US) |
|---|---|
| Title of host publication | Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media |
| Pages | 1112-1115 |
| Number of pages | 4 |
| DOIs | |
| State | Published - Nov 27 2009 |
| Externally published | Yes |
| Event | 6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 - Golden, CO, United States Duration: Jul 13 2009 → Jul 17 2009 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1145 |
Other
| Other | 6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 |
|---|---|
| Country | United States |
| City | Golden, CO |
| Period | 7/13/09 → 7/17/09 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
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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 proceeding › Conference contribution
TY - GEN
T1 - A particle-substrate numerical model for a quasi-2D driven dissipative granular gas
AU - Dutt, Meenakshi
AU - Behringer, R. P.
PY - 2009/11/27
Y1 - 2009/11/27
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=70450208766&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70450208766&partnerID=8YFLogxK
U2 - https://doi.org/10.1063/1.3179841
DO - https://doi.org/10.1063/1.3179841
M3 - Conference contribution
SN - 9780735406827
T3 - AIP Conference Proceedings
SP - 1112
EP - 1115
BT - Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media
ER -