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Article Dans Une Revue Acta Acustica united with Acustica Année : 2002

Application of Fractional Calculus to the Sound Waves Propagation in Rigid Porous Materials: Validation Via Ultrasonic Measurements

Résumé

This paper starts by summarizing the basic equations of a theoretical model, recentely published by Fellah and Depollier [1], which describes the propagation of pulses in the time domain through a porous medium. In the field of absorbing acoustical porous media, the predictive equations have always been written in the frequency domain. The new method that is proposed is based on the concept of fractional derivatives. The added value of the present work consists in a fine experimental validation performed in plastic foams, sandy sediments and on multilayered porous materials.
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hal-04230409 , version 1 (15-10-2023)

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  • HAL Id : hal-04230409 , version 1

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Zine El Abiddine Fellah, Claude L. Depollier, Mohamed Fellah. Application of Fractional Calculus to the Sound Waves Propagation in Rigid Porous Materials: Validation Via Ultrasonic Measurements. Acta Acustica united with Acustica, 2002, 88 (1). ⟨hal-04230409⟩
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