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CUVX Design – VT Team 2 Page 110C RLPDi 1.0C R1i C RFSi C R2i C RUSiMercier-Savitsky x iFn ViA 2i 25.957 x i2A 1i22.5777 x i5.826 x i3.183 if x i< 1.320.306 x i0.8724 x i0.6517 if 1.3 x i< 1.52.6233 x i313.151 x i2A 4i 0.1289. 2x i0.2977 x i0 otherwise. 57.89 x i31.533 if x < 1.3 i0 otherwise21.851 x i12.072 otherwise A 5 i3.8592. 2x i8.8358. x i4.9126 if x i< 1.32.28. 2x i6.1117. x i4.143 if 1.3 x i< 1.5if
CUVX Design – VT Team 2 Page 1111.07961c 1 2223105.3.78613 Tc . . 1.375657 90 iBE c 1 = 0.795m 11.0140407. LWL3V FL1.75254. 4.79323. BcTLWL LWL 16 m 1 = 1.74m 4i .4. c . 15 exp .034.3.29Fn iR wiV . FL ρ . SW g. c . 1 c . 2 c . 5 exp m . .91 Fn im . 4i cosλ R2Fn i.56..5A BTP BT F 1.5.h BFni iV iP B = 0.036g. T F h B .25..5A BT .15.2V iR Bi.11. 3exp . 3Fni . 1.52 iA . BT ρ . SW gP B21 Fni iFnT iV i2g . . A TB B.C Wc 6i .2 . 1 .2.FnT FnT iif < 5 i0. otherwiseR TRi.5. ρ . 2SW V . iA . T c 6i3d. Bare Hull Resistance RR iR ikntC A .0005 R Ai .5. ρ . 2SW V . iS . 1C AftR Vi0.5. ρ . 2SW V . iS . iC Fi if HullForm 1AREADPRN ("worm.prn")R Ri0.5. ρ . 2SW V . iS . 1C Fi if HullForm 21 SC Fi C fi C . . eq. 2A x .2 2 iW FL if HullForm 33V FL0.5. ρ . 2SW V . iS . 1C . Fi formfac otherwise0.5. ρ . 2SW V . iS . iC R1i if HullForm 10.5. ρ . 2SW V . iS . iC R2i if HullForm 2R eqiWW FL if HullForm 3mWCF . iR wi R Bi R TRi R Ai if HullForm 6R wi R Bi R TRi R Ai otherwiseWCF ij 1while RR i> A j 1,1j j 1A j 1, 2A j2 ,A .j2 ,RR0.05 iA j1 ,R Ti R Vi R RiV =123456789101112124681012141618202024knt4 .10 5R Vi 3 .10 5lbfR Ri2 .10 5lbfR Tilbf 1 .10 505 10 15 20 25V iknt3e. Ship Effective HorsepowerBare hull: P EBHi R . Ti V iP Efinsi 0hp . if N fins 00.02. P EBHi otherwiseP EAPPi0hp . if HullForm 10.05. P EBHi otherwiseAir frontal area (+5% for masts, equip., etc): A W 1.05 . B. D 10 T H DK A W = 778.969 m 21C AA 0.7 P . EAAi2 C .AA A . W ρ . 3A V iTotal effective horsepower: P ETi P EBHi P EAAi P EAPPi P Efinsi EHP iPMF. P ETi PMF = 1.11.5.10 4 Fig. 2: Effective HorsepowerEHP ihp1.13.10 4P EBHi7500hp375005 10 15 20 25V iknt3f. Propulsion Power BalanceApproximate propulsive coefficient: PC 0.72 V 10= 20 knt V 11= 20 kntSHP iEHP iPCSHP S SHP 11SHP S = 2.907. 10 4 hp SHP e SHP 10SHP e 36337.hpRequired installed power (with 25% for fouling and sea state): P IREQη1.25.SHP SP IREQ = 39493.4 hp
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