Wind Wind cause loads on various components in the model. There are multiple methods for including wind in a model described below. 1. Wind spectrum A wind spectrum function may be used to describe fluctuations in wind velocity. See Wind spectra. 2. Wind field from file A three dimensional wind field generated by an external program may be read from file. See Wind fields. 3. Stationary uniform wind When using Stationary uniform wind the wind speed is constant in time. Optionally, a shear profile may be given to define a vertical variation in wind speed. Waves Wind Spectra