Fill the form below to compute the sound absorption coefficient to a plane wave at normal incidence for a porous material sample bounded onto a rigid and impervious wall using Delany-Bazley-Miki model.
$h$ denotes the thickness of the porous material sample, $\sigma$ the static air flow resistivity of this material.

Parameters
 $h$ m $\sigma$ N.s.m-4

## Comment

by sending an e-mail to apmr@matelys.com with the current page title.