For the Pressure Acoustics, Transient interface, you can in addition to the User Defined and
Flow option select a predefined
Gaussian pulse as a source
Type for the
Line Source,
Line Source on Axis,
Monopole Point Source,
Point Sources (for 2D Components), and
Circular Source (for 2D Axisymmetric Components) features. This type adds a source with a Gaussian time profile defined in terms of its amplitude
A, its frequency bandwidth
f0, and the pulse peak time
tp. Using this source type results in solving a wave equation of the type:
In 3D components (for Line Source), 2D axisymmetric components (for
Line Source on Axis and
Circular Source (for 2D Axisymmetric Components)), and 2D components (for
Point Sources (for 2D Components)), all of which are effectively line sources, enter the following values or expressions: