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New Zealand Mathematics Colloquium 1999
July 6-9, 1999
Department of Mathematics and Statistics, University of Canterbury
Christchurch, New Zealand

Organizers
Doris Barnard, Therese Boustead, Chris Price, Bruce Robson, Gunter Steinke, Graeme Wake, Allan Willms

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Sound Waves in Granular Media
by
Graham Weir
Industrial Research Ltd

Dense flows of granular material are important in many industrial applications. Acoustic methods are being used to characterise some of the properties of these granular flows. But how do sound waves pass through the pore space between these grains, which can move in response to such sound waves? This talk will summarise the state of the art, and show why Newton's speed of sound is more relevant than Laplace's expression, in dense granular flows.

Date received: March 14, 1999

Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cacc-11.