NREL's S818 Airfoil (s818-nr)
NREL's S818 Airfoil - NREL HAWT airfoil S818 root 24.0% Dia=30 to 50 m Re=2.5E+6 Clmax(S)=1.68 Clmax(R)=1.61 Restrained max lift coef
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(s818-nr) NREL's S818 Airfoil NREL HAWT airfoil S818 root 24.0% Dia=30 to 50 m Re=2.5E+6 Clmax(S)=1.68 Clmax(R)=1.61 Restrained max lift coef Max thickness 24% at 30.9% chord. Max camber 3.3% at 74.2% chord Source NWTC National WInd Technology Center Source dat file The dat file is in Selig format |
NREL's S818 Airfoil x/c y/c 1.000000 0.000000 0.996280 0.001172 0.985749 0.005042 0.969733 0.011567 0.949331 0.019933 0.925013 0.029036 0.896604 0.037958 0.863630 0.046635 0.826424 0.055387 0.785533 0.064216 0.741535 0.073043 0.695038 0.081746 0.646674 0.090172 0.597088 0.098138 0.546926 0.105437 0.496826 0.111844 0.447405 0.117113 0.399254 0.120979 0.352929 0.123150 0.308961 0.123253 0.267649 0.120477 0.228032 0.114783 0.190293 0.107047 0.154881 0.097687 0.122185 0.087030 0.092615 0.075381 0.066516 0.063028 0.044275 0.050276 0.026233 0.037351 0.012606 0.024534 0.003757 0.012217 0.000672 0.004557 0.000133 0.001836 0.000037 0.000887 0.000025 -0.000735 0.000499 -0.003280 0.001427 -0.005948 0.003293 -0.009727 0.012369 -0.021463 0.026385 -0.033814 0.044928 -0.046399 0.067750 -0.059078 0.094260 -0.071913 0.123523 -0.084383 0.155152 -0.095994 0.188500 -0.106226 0.222881 -0.114767 0.257026 -0.119427 0.293098 -0.118878 0.331998 -0.113599 0.374522 -0.104281 0.420642 -0.092070 0.470046 -0.077846 0.522280 -0.062487 0.576716 -0.046887 0.632540 -0.031924 0.688741 -0.018413 0.744140 -0.007046 0.797417 0.001664 0.847171 0.007428 0.891988 0.010222 0.930520 0.010291 0.961558 0.008111 0.983734 0.004337 0.996140 0.001111 1.000000 0.000000 |
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Similar airfoils
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Polars for NREL's S818 Airfoil (s818-nr)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s818-nr | 50,000 | 9 | 6.8 at α=-0.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s818-nr | 50,000 | 5 | 11.4 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s818-nr | 100,000 | 9 | 16.7 at α=14.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s818-nr | 100,000 | 5 | 39.6 at α=9.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s818-nr | 200,000 | 9 | 57.7 at α=10.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s818-nr | 200,000 | 5 | 58.8 at α=9.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s818-nr | 500,000 | 9 | 83.4 at α=9.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s818-nr | 500,000 | 5 | 81.9 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s818-nr | 1,000,000 | 9 | 105.9 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s818-nr | 1,000,000 | 5 | 101.1 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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