Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Air-driven Brazil nut effect.

M A Naylor1, Michael R Swift, P J King

  • 1School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, England.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|August 26, 2003
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Improving cosmological reach of a gravitational wave observatory using Deep Loop Shaping.

Science (New York, N.Y.)·2025
Same author

Torque about electrostatically charged spheres makes them more attractive.

Soft matter·2024
Same author

Collective behavior of composite active particles.

Physical review. E·2022
Same author

Fluid dynamics and cell-bound Psl polysaccharide allows microplastic capture, aggregation and subsequent sedimentation by Pseudomonas aeruginosa in water.

Environmental microbiology·2022
Same author

Point Absorber Limits to Future Gravitational-Wave Detectors.

Physical review letters·2021
Same author

Constraints on Cosmic Strings Using Data from the Third Advanced LIGO-Virgo Observing Run.

Physical review letters·2021
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

Vertical vibration causes large objects to rise in granular beds, known as the Brazil nut effect. Air movement significantly amplifies this effect in fine granular materials, revealing a connection to Chladni and Faraday

Area of Science:

  • Physics
  • Granular Mechanics
  • Fluid Dynamics

Background:

  • The Brazil nut effect describes the tendency of larger objects to rise in a granular mixture under vertical vibration.
  • Interstitial air has been recently identified as a factor influencing the Brazil nut effect's dynamics.
  • Previous studies by Chladni and Faraday noted phenomena related to fine granular beds and vibration.

Purpose of the Study:

  • To investigate the mechanism behind the enhanced Brazil nut effect in fine granular beds due to air movement.
  • To demonstrate the relationship between this enhanced effect and the piling of fine beds.
  • To explore the role of air-particle interaction in vibration-induced granular phenomena.

Main Methods:

  • Utilizing a porous-bottomed box to control and study air flow through a granular bed.

Related Experiment Videos

  • Applying controlled vertical vibration to granular materials.
  • Observing and analyzing the movement of larger objects within the granular bed and the behavior of fine particles.

    • Main Results:

    • Vertical vibration induces significant air movement within fine granular beds.
    • This induced air movement strongly enhances the Brazil nut effect, causing rapid rise of large objects.
    • The observed phenomenon is directly linked to the air's interaction with fine particles, causing them to pile.

    Conclusions:

    • Air movement, driven by vertical vibration, is a primary driver of a strong Brazil nut effect in fine granular systems.
    • The enhanced Brazil nut effect in fine granular beds is mechanistically related to air-particle interactions, akin to Chladni and Faraday's observations.
    • Understanding these air-fluidized granular dynamics is crucial for various applications involving granular materials.