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Acoustic Muffler with Thermoacoustic Impedance Lumping

Application ID: 10536


This model utilizes the thermoacoustic 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 application was built using the following:

Acoustics Module