A Nonlinear Quasi-3D Approach for the Modeling of Mufflers with Perforated Elements and Sound-Absorbing Material

<table>Chamber with absorbing material: effect of increasing material resistivity.</table>

Advances in Acoustics and Vibration

Figure 15: A Nonlinear Quasi-3D Approach for the Modeling of Mufflers with Perforated Elements and Sound-Absorbing Material 