.. _acoustics-acoustics: acoustics/acoustics.py ====================== **Description** Acoustic pressure distribution. This example shows how to solve a problem in complex numbers, note the 'accoustic_pressure' field definition. Find :math:`p` such that: .. math:: c^2 \int_{\Omega} \nabla q \cdot \nabla p - w^2 \int_{\Omega} q p - i w c \int_{\Gamma_{out}} q p = i w c^2 \rho v_n \int_{\Gamma_{in}} q \;, \quad \forall q \;. .. image:: /../gallery/images/acoustics-acoustics.png :download:`source code ` .. literalinclude:: /../examples/acoustics/acoustics.py