Trans RINA, Vol 157, Part C1, Intl J Marine Design, Jan - Dec 2015
knots 10 12 14 16 18 20
Vs Fn -
0.15 0.18 0.22 0.25 0.28 0.31
Re Trim* Sinkage CFD Drag CFD Pe NavCad Pe Bare NavCad Pe Total -
5.68E+08 6.82E+08 7.96E+08 9.10E+08 1.02E+09 1.14E+09
[deg] 0.07 0.11 0.17 0.23 0.29 0.31
[m]
-0.11 -0.16 -0.23 -0.31 -0.42 -0.54
[N]
141889 216273 295292 445122 770628 1377130
[kW] 730
1335 2127 3664 7136
14169 Table 6: Pe and Total Drag values
[kW] 737.2
[kW] 3840.1
1263.5 5123.0 2060.1 6722.2 3319.7 8830.9 5285.8 11692.6 8747.6 16096.8
Roughness 150 µm Roughness 100 µm (L)
Vs
[knots] 12 14 16 18
Cr [N]
0.0106 0.0148 0.0287 0.0684
Cr L Cr Scatter [N]
% Cf [N]
Cf L [N]
Cf
Scatter [%]
Ct [N]
Ct L [N]
Ct
Scatter [%]
0.0106 0.3% 0.0215 0.0202 6.5% 0.0321 0.0308 -4.2% 0.0150 -1.7% 0.0291 0.0273 6.5% 0.0439 0.0423 -3.4% 0.0297 -3.5% 0.0375 0.0355 5.5% 0.0661 0.0653 -1.3%
0.0680 0.6% 0.0462 0.0444 3.9% 0.1145 0.1124 -1.8% Table 7: Cr, Cf and Ct values
© 2015: The Royal Institution of Naval Architects 107
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