Behavior of low-frequency sound waves in porous media

This is a study of the relationship between the measured acoustic parameters and the measured physical parameters of porous media. Materials studied include crushed limestone, stream-formed pea gravel, large and small sifted pea gravels, and glass spheres. A standing wave curve fitting algorithm was applied to data taken from a vertical impedance tube to determine the propagation and reflection parameters of the materials. Physical characteristics considered include porosity, tortuosity, and flow resistivity.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2010

Author dc:creator

• Rossi, Tyler J.

Contributors dc:contributor

• Swenson, George W.

• Low-Frequency
• sound waves
• impedance tube
• gravel
• glass spheres
• tortuosity
• porosity
• flow resistivity
• attenuation coefficient
• phase constant

Statement dc:rights

• Copyright 2010 Tyler J. Rossi

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/16873

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/16873