Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apri16003h&link_type=abstract
American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As
Astronomy and Astrophysics
Astrophysics
Scientific paper
Grain, gravel, and many powders are common examples of granular materials. The dynamics of these materials are important in many industrial processes. Although the understanding of these materials is important to many fields, there is not a comprehensive understanding of granular materials. The paper, “Vibration-Induced Size Separation in Granular Media: The Convection Connection,” by James B. Knight, H. M. Jaeger, and Sidney R. Nagel, will be used as an outline to begin and improve on the idea of convection in granular materials. Their experimental research supports the idea that convection is seen in a vertically vibrated container filled with different sized spherical granular material. This can be seen as the largest spheres rise to the top of the granular material, which is contrary to that seen in other states of matter such as fluids and gases, where the particles are distributed according to density. This experiment will attempt to reproduce and improve on the findings of Knight, Jaeger, and Nagel by vertically shaking different shaped and sized materials in a cylindrical and a triangular shaped container in order to gain a greater understanding of the physical characteristics of convection in granular materials.
Galovich Cynthia
Holloman Ryan
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