Skip to main content

Role of defects in the onset of wall-induced granular convection.

Publication ,  Journal Article
Fortini, A; Huang, K
Published in: Physical review. E, Statistical, nonlinear, and soft matter physics
March 2015

We investigate the onset of wall-induced convection in vertically vibrated granular matter by means of experiments and two-dimensional computer simulations. In both simulations and experiments we find that the wall-induced convection occurs inside the bouncing bed region of the parameter space, in which the granular bed behaves like a bouncing ball. A good agreement between experiments and simulations is found for the peak vibration acceleration at which convection starts. By comparing the results of simulations initialized with and without defects, we find that the onset of convection occurs at lower vibration strengths in the presence of defects. Furthermore, we find that the convection of granular particles initialized in a perfect hexagonal lattice is related to the nucleation of defects and the process is described by an Arrhenius law.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Physical review. E, Statistical, nonlinear, and soft matter physics

DOI

EISSN

1550-2376

ISSN

1539-3755

Publication Date

March 2015

Volume

91

Issue

3

Start / End Page

032206

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Fortini, A., & Huang, K. (2015). Role of defects in the onset of wall-induced granular convection. Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, 91(3), 032206. https://doi.org/10.1103/physreve.91.032206
Fortini, Andrea, and Kai Huang. “Role of defects in the onset of wall-induced granular convection.Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics 91, no. 3 (March 2015): 032206. https://doi.org/10.1103/physreve.91.032206.
Fortini A, Huang K. Role of defects in the onset of wall-induced granular convection. Physical review E, Statistical, nonlinear, and soft matter physics. 2015 Mar;91(3):032206.
Fortini, Andrea, and Kai Huang. “Role of defects in the onset of wall-induced granular convection.Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, vol. 91, no. 3, Mar. 2015, p. 032206. Epmc, doi:10.1103/physreve.91.032206.
Fortini A, Huang K. Role of defects in the onset of wall-induced granular convection. Physical review E, Statistical, nonlinear, and soft matter physics. 2015 Mar;91(3):032206.

Published In

Physical review. E, Statistical, nonlinear, and soft matter physics

DOI

EISSN

1550-2376

ISSN

1539-3755

Publication Date

March 2015

Volume

91

Issue

3

Start / End Page

032206

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences