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

<table>Lateral view of the calculation grid for the acoustic modeling of the reverse chamber: in blue the 1D inlet and outlet ducts.</table>

Advances in Acoustics and Vibration

Figure 5: A Nonlinear Quasi-3D Approach for the Modeling of Mufflers with Perforated Elements and Sound-Absorbing Material 