A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway

Figure 4

(a) Roll and pitch motions of EHF with 𝛿=30^∘, 𝐹_𝑟=0.2146 in the regular incident wave 𝑤ℎ=5.984 m, 𝜆=2.0 (Case 3). The numerical results from the improved DiSSEL are on the top, and the experimental data are in the bottom. (b) Same as (a), but for the ship track in Earth coordinate, 𝑥 is the initial direction, and 𝑦 is perpendicular to 𝑥 direction. (c) Same as (a), but for the driving and restoring forces (moments).