Modelling of acoustic transmission through perforated layer
Applied and Computational Mechanics, Vol. 1, No. 1, pp. 137 - 142
kme.zcu.czAbstract:
The paper deals with modeling the acoustic transmission through a perforated interface plane separating two halfspaces occupied by the acoustic medium. We considered the two-scale homogenization limit of the standard acoustic problem imposed in the layer with the perforated periodic structure embedded inside. The homogenized transmission conditions govern the interface discontinuity of the acoustic pressure associated with the two halfspaces and the magnitude of the fictitious transversal acoustic velocity. By numerical examples we illustrate this novel approach of modeling the acoustic impedance of perforated interfaces.
Keywords:
acoustic transmission, perforated layer, homogenization technique
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