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for some selected cases taking the free surface into account in order to check if the initial assumptions regarding it's small influence on the results have to be revised.
Fig. 4 shows the computed non-dimensional roll moment about the longitudinal axis at the water plane. The results for pure drift motion (r'=0) are compared with measurements. The agreement is very satisfactory.
Figure 3: |
Measured and computed non-dimensional yaw moment for different yaw/drift combinations |
Figure 4: |
Measured and computed non dimensional roll moment for different yaw/drift combinations |
Figure 5: |
Pressure distribution on the hull and transverse velocity in a cross section. RoRo ship turning steadily to starboard |
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