Hello,
Did you modify something in the Manche test case ?
In this example, 2D density spectra (frequency/direction contained in the *.lar file) for 21 particular boundary points are read and interpolated on boundary points.
In modified limwac subroutine, CL1 and CL2 arrays contain energy densities for 2 consecutive time steps. A time interpolation is also done.
For your case, you have to introduce your time varying parameters (Hs, Tp, direction) in the limwac subroutine too, before the call to speini. From this parameters, the speini subroutine will then build the spectra according to the TYPE OF BOUNDARY DIRECTIONAL SPECTRUM that you have chosen. By default, the same spectrum will be imposed over your whole liquid boundary.
You can find other topics on this subject on the forum.
I hope it helps.
Regards,
Laurent