AndyJP
Subscriber
If it ocillates, that means the mesh is not fine enough. Give it more passes. The delta is not some smooth function. It can get zero even at the second step by chance. n>The phase delay across boundaries along X-axis is set to 0?naha, that means a flat plane wave... or the next mode with 2pi...there's some uncertainty. Why would you need that? Leave it as ABC radiation, PML, or some symmetry boundary.n>Y-axis is assigned to a variable to be variednthat's how it is done when getting a dispersion curve.n