Provider: Ingenta Connect
Database: Ingenta Connect
Content: application/x-research-info-systems
TY - ABST
AU - Peters, François
AU - Petit, Luc
TI - Propagation of Ultrasound Waves in Concentrated Suspensions
JO - Acta Acustica united with Acustica
PY - 2000-09-01T00:00:00///
VL - 86
IS - 5
SP - 838
EP - 846
N2 - We have measured the phase velocity and attenuation of a coherent acoustical wave propagating in a macroscopic suspension. The frequency range corresponds to resonant scattering of particles (*kd* ∼ π, where *k* is the wave vector and *d* the diameter of particles),
at high concentrations (5% to 30%). We have developed a spectral method to measure the velocity and the attenuation on a wide band of frequency, by means of signal processing using Fast Fourier Transform. The results are compared with an effective medium theory (Waterman and Truell). We obtain
a good agreement, even for the resonant scattering frequency range.
UR - http://www.ingentaconnect.com/content/dav/aaua/2000/00000086/00000005/art00011
ER -