Contribution of the acoustic-wake effect to the attenuation of sound in dilute suspensions of rigid particles |
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Authors: | González Icíar Gallego-Juárez Juan A |
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Affiliation: | Inst. de Acustica, CSIC, Madrid, Spain; |
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Abstract: | This work deals with the attenuation of sound in dilute suspensions of rigid particles when the hydrodynamic mechanism of the acoustic-wake effect is considered. The study extends a previous model by considering asymmetric flow-field conditions around the particles, caused by other neighbor particles along the direction of propagation of the acoustic field. The attenuation coefficient is derived from the force equation for a spherical particle in an incompressible fluid that is oscillating at low frequencies and amplitudes within the range of Reynolds numbers of 0.1
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