Monopole Domain Source
Use the Monopole Domain Source node to add a the domain source term Qm to the governing equation. A monopole domain source added to a domain has a uniform strength in all directions. In advanced models this source term can, for example, be used to represent a domain heat source causing pressure variations or a nonlinear contribution to the equations in the time domain. Add this node from the More submenu.
Monopole Source
Enter a Monopole domain source Qm (SI unit: 1/s2).
In a transient model the Monopole Domain Source can be used to add nonlinearities to the governing equation. See the model Nonlinear Acoustics—Modeling of the 1D Westervelt Equation for such an example: Application Library path Acoustics_Module/Nonlinear_Acoustics/nonlinear_acoustics_westervelt_1d.