Wave problems in COMSOL

[feynman1]

COMSOL gives me the impression that it always gives unrealistic solutions in time domain for wave problems, say mechanical waves or simply solutions of a wave equation. In frequency domain, COMSOL works better for wave problems. Anybody agrees?

 

[FEAnalyst]

That’s interesting. Have you tried running some benchmark problems or verifying these simulations in some other way ?

 

[feynman1]

That’s interesting. Have you tried running some benchmark problems or verifying these simulations in some other way ?

not really though. one can spend 5mins running an elastic vibration problem of a 2D solid in time domain, and there's never correct solutions.