Singing sands, musical grains and booming sand dunes

Description

The origin of the acoustic emissions from a bed of musical grains, impacted by a pestle, is sought in a boundary layer at the leading front of the pestle. The frequencies of the shear modes of vibration in such a layer are compared with the observed frequencies. It is assumed that such a layer is the result of the fluidization of the grain asperities due to the high stress level at the front end. Such a boundary layer can also account for the emissions from plates of sand sliding on a dune surface and from grains shaken in a jar.

Links & Downloads

1. The second version was published as: Patitsas, A.J., "Singing sands, musical grains and booming sand dunes", Journal of Physical and Natural Sciences, vol. 2, issue 1, 2008. http://www.scientificjournals.org
2. https://zone.biblio.laurentian.ca/dspace/handle/10219/301

Tags

singing sands

musical grains

booming doons

acoustic emissions

Additional Fields

Identifer	oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OSUL.10219/301
Date	14 July 2008
Creators	Patitsas, A.J.
Source Sets	Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada
Language	en_US
Detected Language	English
Type	Article