A83. Source terms for a given spectrum

Source terms are computed for a given spectrum with sea and swell combined. The peak period of the sea is 6 s and the peak period of the swell is 10 s. The Hs of the sea is 2 m and the Hs of the swell varies between 0 and 2 m. The directions of sea and swell in some cases are identical, in ohters they differ 30 degr.
The command MODE NOUPDATE is used to prevent change of the spectrum during the computation. 2 iterations are performed so that 3d generation computation of the source terms is carried out. In the 1st iteration Swcap and Snl4 are 0; in the 2nd iteration they are activated.
There are no analytic computations to Compare with. The resulting source terms are Compared with those from a computation with the RIAM source term (Hashimoto, ..). The latter are found in the subdirectory Verif.dat

8 cases are considered:

no swell
Hs of swell is 0.5 m, same direction
Hs of swell is 1 m, same direction
Hs of swell is 2 m, same direction
as A83b, different directions
as A83c, different directions
as A83d, different directions

The Initial condition is in files ′A83*.hot′. It can be generated by executing Runprep.bat. This procedure can be used only with the DHH version of Swan.

© 2012: Nico Booij