NREL's S823 Airfoil (s823-nr)
NREL's S823 Airfoil - NREL HAWT airfoil S823 root 21.0% Dia=2 to 10 m Re=4.0E+5 Clmax(S)=1.20 Clmax(R)=1.16 Restrained max lift coef
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(s823-nr) NREL's S823 Airfoil NREL HAWT airfoil S823 root 21.0% Dia=2 to 10 m Re=4.0E+5 Clmax(S)=1.20 Clmax(R)=1.16 Restrained max lift coef Max thickness 21.2% at 24.3% chord. Max camber 2.4% at 70.5% chord Source NWTC National WInd Technology Center Source dat file The dat file is in Selig format |
NREL's S823 Airfoil x/c y/c 1.000000 0.000000 0.996182 0.001021 0.985647 0.004487 0.969834 0.009935 0.949208 0.016186 0.923311 0.022860 0.892433 0.030245 0.857144 0.038305 0.818037 0.046896 0.775723 0.055810 0.730810 0.064793 0.683890 0.073566 0.635537 0.081835 0.586291 0.089312 0.536666 0.095725 0.487145 0.100825 0.438182 0.104394 0.390202 0.106236 0.343554 0.106115 0.298349 0.104071 0.255030 0.100219 0.213826 0.094667 0.175150 0.087661 0.139404 0.079378 0.106993 0.069983 0.078238 0.059647 0.053489 0.048562 0.032973 0.036935 0.017013 0.025059 0.005871 0.013252 0.001538 0.006021 0.000533 0.003322 0.000235 0.002160 0.000026 0.000734 0.000174 -0.001931 0.000800 -0.004837 0.002374 -0.009387 0.010193 -0.023971 0.021425 -0.041404 0.034330 -0.059382 0.049121 -0.076692 0.065425 -0.091707 0.084347 -0.102507 0.108058 -0.109780 0.136074 -0.114432 0.168058 -0.116517 0.203782 -0.116043 0.243045 -0.113061 0.285642 -0.107692 0.331343 -0.100136 0.379872 -0.090684 0.430894 -0.079712 0.483993 -0.067673 0.538656 -0.055088 0.594258 -0.042513 0.650057 -0.030520 0.705190 -0.019649 0.758682 -0.010377 0.809471 -0.003071 0.856439 0.002045 0.898460 0.004922 0.934449 0.005687 0.963294 0.004594 0.983900 0.002540 0.996032 0.000732 1.000000 0.000000 |
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Polars for NREL's S823 Airfoil (s823-nr)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| s823-nr | 50,000 | 9 | 20.9 at α=11.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s823-nr | 50,000 | 5 | 20.4 at α=9° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s823-nr | 100,000 | 9 | 42.3 at α=9.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s823-nr | 100,000 | 5 | 43.2 at α=8° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s823-nr | 200,000 | 9 | 62.5 at α=8° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s823-nr | 200,000 | 5 | 60 at α=7.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s823-nr | 500,000 | 9 | 86.1 at α=7° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s823-nr | 500,000 | 5 | 77.5 at α=6° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| s823-nr | 1,000,000 | 9 | 101.5 at α=6.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| s823-nr | 1,000,000 | 5 | 87.6 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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