Dear All,
I'm trying to simulate guided waves using the SAFE approach, which is basically a 2D solid mechanics simulation with out-of-plane harmonic extension. Using mode analysis for a specific frequency, I obtain the out-of-plane wavenumbers leading to eigenmodes of the guided wave.
Then, at this particular frequency, I want to enforce a specific displacement at out-of-plane coordinate 0 and consider the resulting displacement at another out-of-plane coordinate z. This can be done by writing the solution as a linear combination of the eigenmodes obtained before. Unfortunately, so far I am not able to do so using Comsol.
What I so far tried was using a modal solver as follow up to the mode analysis and using all eigenpairs of the previous mode analysis solution. However, this resulted in comsol giving an error, noting that the variable lambda is undefined.
Thank you for any information on how to reach this.