アプリケーションギャラリ

This is a conceptual model of a microphone placed in an infinite baffle (flush mounted). The purpose is to determine the free-field level correction curve of the setup, which includes the exterior domain, microphone grid, and volume between the grid and the diaphragm. The microphone diaphragm is characterized with a simple RCL impedance and the open radiation condition is modeled with a Perfectly Matched Layers (PMLs).

This model uses the Acoustic-Thermoviscous Acoustic Boundary multiphysics coupling to couple Thermoviscous Acoustics to the exterior Pressure Acoustics. Thermoviscous acoustics is used to model the acoustics in the small domain between the diaphragm and the grid, calculating the pressure distribution, temperature fluctuation distribution, and velocity magnitude. Pressure Acoustics is used to calculate the incident and scattered pressure fields in the exterior domain.