各向异性多孔吸声体
Application ID: 131041
This is a 2D model of an anisotropic porous absorbing material. The absorption coefficient alpha are determined as functions of frequency for three different incidence angles. The example uses Periodic Floquet boundary conditions.
The model uses two different methods for modeling the porous material, either with poroacoustics or poroelastic waves, and demonstrates the differences in the two approaches. It is demonstrated that it is necessary to use the poroelastic wave interface to capture the effects of the resonances of the poroelastic frame.
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