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Interpreting PDE Coefficients.
Posted Oct 3, 2012, 10:50 AM EDT 2 Replies
I am currently modelling the modes on a 2-D membrane, and have used the Mathematics>PDE Interfaces>Coefficient Form PDE (c) physics to solve an eigenvalue equation on the surface. It has worked fine, and I can see the excited modes, but I now want to change the properties of the membrane to see how that affects the frequencies.
I have looked at the underlying equation that comsol is really solving, but the coefficients have names like "conservative flux source term". I need to know what these terms really are in the case for acoustic waves on a membrane. I.e. which coefficient links to tension etc.