Acoustic Muffler with Thermoviscous Acoustic Impedance Lumping

Application ID: 10536

This model utilizes the thermoviscous acoustic interface in a sub-model to obtain detailed results for the transfer impedance of a perforated plate (including the thermal and viscous losses).

The impedance is in turn used as an internal impedance in a pressure acoustic model of a muffler. The results are compared to classic impedance models and measurements.

This model example illustrates applications of this type that would nominally be built using the following products: