2015•The Journal of the Acoustical Society of AmericaRequires access

Comment on “Attenuation and dispersion of sound in dilute suspensions of spherical particles” [J. Acoust. Soc. Am. 108(1), 126–146 (2000)]

Shiva Kant Shukla, Luis Elvira

Abstract

Comment is made on an article by Temkin [J. Acoust. Soc. Am. 108(1), 126-146 (2000)]. This work illustrates the impact of particle size distribution on the dispersion and attenuation of sound waves propagating through particle suspensions. Temkin's propagation theory is extended for poly-disperse distributions of spherical particles, applicable to real suspensions. Significant changes in dispersion and attenuation appear near the particle resonance for both bubble and solid particle suspensions. Existing experimental data for bubble distributions also shows a good agreement with the poly-disperse modifications proposed.

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Key concepts: Attenuation, Acoustic dispersion, Dispersion (optics), Particle (ecology), Acoustic attenuation, Bubble, Acoustics, Resonance (particle physics)