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.
[tube]http://www.youtube.com/watch?v=yWtazWjH5nQ[/tube]