Resonance Frequencies of a Room

This example studies the resonance frequencies of an empty room by using the Helmholtz equation for the time-harmonic pressure field

Δp + k² = 0

The resulting eigenmodes can be compared to and validated against the analytical solution for the resonance frequencies of a boxed enclosure, that is f = c/2*√( (i/l_x)² + (j/l_y)² + (k/l_z)² ) where i, j, and k are integer permutations 0 … n for the various modes.

This model is available as an automated tutorial by selecting Model Examples and Tutorials… > Classic PDE > Resonance Frequencies of a Room from the File menu. Or alternatively, follow the video tutorial or linked step-by-step instructions.