The Gaussian Pulse Source Type Settings
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:
where S is the source strength.
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:
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The value of the pulse Amplitude A (SI unit: m2/s).
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Frequency bandwidth f0 (SI unit: Hz).
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Pulse peak time tp (SI unit: s) for the duration of the pulse.
In 3D and 2D axisymmetric components for the Monopole Point Source, enter the following values or expressions:
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The value of the pulse Amplitude A (SI unit: m3/s).
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Frequency bandwidth f0 (SI unit: Hz).
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Pulse peak time tp (SI unit: s) for the duration of the pulse.
Transient Gaussian Explosion: Application Library path Acoustics_Module/Tutorials/gaussian_explosion