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Acoustics Module Damping term
Posted 22 oct. 2010, 11:27 UTC−4 0 Replies
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"In lossy media, an additional term of first order in the time derivative needs to be introduced to model attenuation of the sound waves". The damping term is absent from the standard PDE formulations in the Acoustics application mode. However, in line with COMSOL Multiphysics’ general modeling philosophy, the da coefficient is accessible from the user interface through the Subdomain Settings - Equation System dialog box.
How ever when I go to the equation system dialog box I do not see the da term in the shown equation (see attached picture). Can someone guide me that how can I incorporate such effects of damping into my model
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Hello Muhammad Ajmal
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