Use the Dipole Domain Source node to add the domain source term qd to the governing equation. This source represents a domain volumetric force. This source is typically stronger in two opposite directions. In 2D axisymmetric models, a force expression should typically have 0 as the r-component. In advanced models, this term can, for example, be used to represent a uniform constant background flow convecting the sound field. It can, in general, be used to model user-defined contributions to the governing equations. Add this node from the More submenu.

Enter coordinates for the Dipole domain source qd (SI unit: N/m3). These are the individual components of the dipole source vector.