COMSOL Tips and Tricks – Resolving Wavelengths in Vibrational Problems

As part of our efforts to assist COMSOL users in performing high-quality analysis, we recently used our bi-monthly email to provide a COMSOL Tips and Tricks update. In this tip, we remind users to include twelve degrees of freedom per wavelength when meshing wave problems. The following video demonstrates why twelve degrees of freedom per wavelength are necessary for a pulsing sphere problem. In addition, key features of how to develop this model are demonstrated.

 

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  1. [...] A mesh refinement study provides valuable information and confidence in solution accuracy. Thus, solve the problem using multiple mesh densities to determine how the solution changes with increasing degrees of freedom. A demonstration of how to set up a simple wave propagation problem and the effects of the number of degrees of freedom on the solution can be found on the AltaSim Technologies Blog. [...]

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