NREL's S819 Airfoil (s819-nr)
NREL's S819 Airfoil - NREL HAWT airfoil S819 primary 21.0% Dia=10 to 20 m Re=1.0E+6 Clmax(S)=1.20 Clmax(R)=1.16 Restrained max lift coef
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(s819-nr) NREL's S819 Airfoil NREL HAWT airfoil S819 primary 21.0% Dia=10 to 20 m Re=1.0E+6 Clmax(S)=1.20 Clmax(R)=1.16 Restrained max lift coef Max thickness 21.1% at 28.4% chord. Max camber 1.3% at 77.3% chord Source NWTC National WInd Technology Center Source dat file The dat file is in Selig format |
NREL's S819 Airfoil x/c y/c 1.000000 0.000000 0.996227 0.000610 0.985332 0.002884 0.968321 0.007082 0.946197 0.012848 0.919582 0.019478 0.888601 0.026289 0.853100 0.033195 0.813514 0.040423 0.770468 0.047944 0.724602 0.055635 0.676568 0.063323 0.627010 0.070795 0.576554 0.077814 0.525799 0.084135 0.475305 0.089511 0.425591 0.093712 0.377132 0.096532 0.330358 0.097800 0.285654 0.097385 0.243383 0.095223 0.203951 0.091061 0.167070 0.084912 0.133009 0.077309 0.102158 0.068539 0.074857 0.058848 0.051442 0.048461 0.032137 0.037616 0.017236 0.026575 0.006778 0.015626 0.001025 0.005430 0.000016 0.000630 0.000085 -0.001387 0.000273 -0.002303 0.000507 -0.002953 0.000592 -0.003128 0.001122 -0.003890 0.001853 -0.004672 0.003801 -0.006327 0.009034 -0.009898 0.025086 -0.020533 0.044690 -0.033671 0.067554 -0.047997 0.092912 -0.062604 0.120577 -0.076796 0.150045 -0.089856 0.181072 -0.101107 0.213187 -0.109658 0.246621 -0.113752 0.283625 -0.113579 0.323851 -0.110343 0.367148 -0.104334 0.413252 -0.096074 0.461795 -0.086042 0.512331 -0.074750 0.564325 -0.062742 0.617142 -0.050578 0.670041 -0.038808 0.722180 -0.027942 0.772632 -0.018422 0.820407 -0.010583 0.864481 -0.004633 0.903842 -0.000629 0.937525 0.001531 0.964668 0.002098 0.984436 0.001434 0.996165 0.000438 1.000000 0.000000 |
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Polars for NREL's S819 Airfoil (s819-nr)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s819-nr | 50,000 | 9 | 7.9 at α=0.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s819-nr | 50,000 | 5 | 22.6 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s819-nr | 100,000 | 9 | 38.4 at α=10.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s819-nr | 100,000 | 5 | 40.4 at α=8.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s819-nr | 200,000 | 9 | 55.6 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s819-nr | 200,000 | 5 | 54.8 at α=8.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s819-nr | 500,000 | 9 | 77.6 at α=8.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s819-nr | 500,000 | 5 | 72.5 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s819-nr | 1,000,000 | 9 | 93.4 at α=7.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s819-nr | 1,000,000 | 5 | 84.1 at α=6.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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