Constants

The following values are used in the program for the density of water and air and the gravitational constant g.

= 1.025 tonnes/m3

= 1.225 x 10-3 tonnes/m3

g = 9.81 m/s2

The default wave spectrum is ITTC and an infinite water depth is used by default. The vessel speed u, v and external forces , , are all assigned to zero by default.