Dynamical states of bubbling in vertically vibrated granular materials part I: Collective processes

Mohammad Hadi Bordbar*, Piroz Zamankhan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Granular materials deform plastically like a solid under weak shear and they flow like a fluid under high shear. These materials exhibit other unusual kinds of behavior, including pattern formation in shaking of granular materials for which the onset characteristics of the various patterns are not well understood. Vertically shaken granular materials undergo a transition to a convective motion which can result in the formation of bubbles. In Part I, a detailed overview is presented of collective processes in gas-particle flows useful for developing a simplified model for molecular dynamic type simulations of dense gas-particle flows. The large eddy simulation method (LES) has been employed for simulating fluid flows through irregular array of particles. The results obtained may lead to scale-dependent closures for quantities such as the drag, stresses and effective dispersion. These are of use for developing a continuum approach for describing the deformation and flow of dense gas-particle mixtures described in Part II.

Original languageEnglish
Title of host publicationProceedings of ASME Fluids Engineering Division Summer Conference, 2005 Symposia, FEDSM2005
Pages625-658
Number of pages34
Volume1 PART A
Publication statusPublished - 2005
MoE publication typeA4 Article in a conference publication
EventASME Fluids Engineering Division Summer Meeting - Houston, United States
Duration: 19 Jun 200523 Jun 2005

Conference

ConferenceASME Fluids Engineering Division Summer Meeting
Abbreviated titleFEDSM
CountryUnited States
CityHouston
Period19/06/200523/06/2005

Keywords

  • Collective processes
  • Dense Granular materials
  • Interstitial fluid
  • Large eddy simulation (LES)
  • Nonlinear Dynamics
  • Oscillon
  • Vibrated beds

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    Bordbar, M. H., & Zamankhan, P. (2005). Dynamical states of bubbling in vertically vibrated granular materials part I: Collective processes. In Proceedings of ASME Fluids Engineering Division Summer Conference, 2005 Symposia, FEDSM2005 (Vol. 1 PART A, pp. 625-658). [FEDSM2005-77162]