The Pressure node creates a boundary condition that acts as a pressure source at the boundary, which means a constant acoustic pressure
p0 is specified and maintained at the boundary:
p =
p0. In the frequency domain,
p0 is the amplitude of a harmonic pressure source. The node is also available from the
Pairs submenu as an option at interfaces between parts in an assembly.
Enter the value of the Pressure p0 (SI unit: Pa). The default is 0 Pa.
) and select Advanced Physics Options in the Show More Options dialog.