The Pressure node creates a boundary condition that acts as a pressure source at the boundary. The total acoustic pressure is given at the boundary pt = p0(x, t).

Enter an expression for the Pressure p0(x, t) (SI unit: Pa). The input can be any analytical function or interpolation data that can be function of both time and space.

If the Use accelerated solver formulation option is selected in Model Equations and Solver Settings section, the source has to be split into its spatial and temporal components such that pt = p0(x) l(t). Enter an expression for the (space-dependent) Pressure p0(x) and the time-dependent Load factor l(t).