Design Optimization of Subcavitating Hydrofoils for America's Cup Class Yachts - presented by Prof. Joaquim R. R. A. Martins

Design Optimization of Subcavitating Hydrofoils for America's Cup Class Yachts

Prof. Joaquim R. R. A. Martins

Prof. Joaquim R. R. A. Martins
Slide at 21:47
p1 Re=3.5x106 p2 Re=5.0 1 06 p3 Re=6.0 x 106 p4 4 Re=4.0 x 106 A (%) A (%) o=0.520 92.92 o=0.380 84.80 o=0.330 82.57 o=0.440 88.60 0.520 92.90 -0.0 0=0.380 84.77 -0.0 o=0.330 82.50 -0.1 o=0.440 88.58 -0.0 0.520 92.82 -0.1 0.380 84.83 +0.0 o=0.330 82.58 +0.0 o=0.440 88.59 -0.0 Cavitation 0.520 =0.380 =0.330 0.440 -0.5 -0.25 -0.25 -0.25 constraints 0.00 0.00 0.00 0.25 0.25 0.25 are satisfied 0.50 0.50 0.50 1.378 1.011 1.651 1.254 1.309* 1.399* 1.642 1.237 -0.952 0.262 0.75 -4.291 -2.708 0.75 -4.675 -3.660 0.75 -2.925 -1.468 0.500 0.500 0.260 0.260 0.190 0.190 0.370 0.370 0.009290.00928 0.008480.00848 for all optima 0.008260.00826 0.00886 0.00886 0.1049 0.1002 1.00 1.00 0.0679 0.0710 0.0633 0.0616 1.00 0.0832 0.0833 Cp.min -0.515 -0.514 Cp,min -0.368 -0.363 Cp,min -0.325 -0.325 Cp,min -0.435 -0.427 -0.1 -0.1 -0.1 -0.1 0.00 0.25 0.50 0.75 1.00 0.00 0.25 0.50 0.75 1.00 0.00 0.25 0.50 0.75 1.00 0.00 0.25 0.50 0.75 1.00 Re 6.0 x 106 = 8.0x106 m1 Re=1.0x106 Cd 104 A (%) x 104 A (%) o=0.330 82.50 a = 0.320 79.98 o=0.320 201.67 =0.330 82.43 -0.1 0.320 79.84 -0.2 d=0.320 199.22 -1.2 0.330 82.52 +0.0 0.320 79.95 -0.0 0.320 201.21 -0.2 o=0.330 o=0.320 -0.25 -0.25 2.000 2.000 10.000 10.000 1.300 1.349 0.00 0.00 0.02017 0.02012 0.1985 0.1725 0.25 0.25 Cp.min -5.111 -6.173 0.111c 0.098c 0.50 0.50 1.457 1.358 1.011 1.451 0.75 -5.000 -3.718 0.75 -5.000 -4.3891 0.180 0.180 0.130 0.130 0.008250.00825 0.00800 0.00800 1.00 0.0597 0.0610 1.00 0.0594 0.0544 -0.322 -0.321 Cp.min -0.297 -0.309 separation -0.1 -0.1 -0.1 0.00 0.25 0.50 0.75 1.00 0.00 0.25 0.50 0.75 1.00 0.00 0.25 0.50 0.75 1.00
Share slide