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Communication Dans Un Congrès Année : 2015

Ultrasonic waves Reflected at Oblique Incidence by Porous Rigid Medium.

Résumé

An ultrasonic reflected wave at oblique incidence by porous medium with rigid frames is considered using equivalent fluid model. The viscous and thermal losses of the medium are described by two susceptibility kernels which depend on the viscous and thermal characteristic lengths. Analytical derivation of reflection coefficient is given in frequency domain. The simulated reflected wave is obtained at time domain by convolution between the reflected operator and the incident field. Experimental results for plastic foam samples of air-saturated porous media are given and compared with theoretical prediction.
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Dates et versions

hal-01309366 , version 1 (03-05-2016)

Identifiants

  • HAL Id : hal-01309366 , version 1

Citer

Mustapha Sadouki, Mohamed Fellah, Z.E.A Fellah, Claude L. Depollier. Ultrasonic waves Reflected at Oblique Incidence by Porous Rigid Medium.. 22ème Congrès Français de Mécanique, Aug 2015, Lyon, France. pp.361-369. ⟨hal-01309366⟩
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