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NREL's S817 Airfoil (s817-nr)

NREL's S817 Airfoil - NREL HAWT airfoil S817 tip 16.0% Dia=30 to 50 m Re=3.0E+6 Clmax(S)=1.10 Clmax(R)=1.08 Restrained max lift coef


Airfoil s817-nr
Details Dat file Parser  
(s817-nr) NREL's S817 Airfoil
NREL HAWT airfoil S817 tip 16.0% Dia=30 to 50 m Re=3.0E+6 Clmax(S)=1.10 Clmax(R)=1.08 Restrained max lift coef
Max thickness 16% at 51.1% chord.
Max camber 2.8% at 41.1% chord
Source NWTC National WInd Technology Center
Source dat file
The dat file is in Selig format
NREL's S817 Airfoil
   x/c        y/c
1.000000   0.000000
0.996181   0.000538
0.985115   0.002693
0.967742   0.006897
0.945064   0.013016
0.917813   0.020567
0.886342   0.029037
0.850827   0.038354
0.811952   0.048605
0.770556   0.059582
0.727479   0.070903
0.683540   0.082026
0.639510   0.092179
0.595770   0.099994
0.551323   0.104955
0.506064   0.107442
0.460088   0.107831
0.413876   0.106495
0.367930   0.103634
0.322764   0.099414
0.278854   0.093990
0.236695   0.087518
0.196730   0.080162
0.159422   0.072091
0.125168   0.063482
0.094395   0.054524
0.067447   0.045401
0.044732   0.036303
0.026561   0.027298
0.013037   0.018535
0.004428   0.010189
0.000360   0.002472
0.000097   0.001209
0.000009  -0.000344
0.000088  -0.001044
0.000269  -0.001673
0.000601  -0.002252
0.001068  -0.002831
0.001348  -0.003124
0.002331  -0.003985
0.009208  -0.007511
0.023293  -0.011505
0.043224  -0.015059
0.069056  -0.018360
0.100341  -0.021950
0.136148  -0.025898
0.175927  -0.030099
0.218923  -0.034424
0.264584  -0.038702
0.312212  -0.042753
0.361251  -0.046380
0.411034  -0.049379
0.461007  -0.051521
0.510533  -0.052546
0.559060  -0.052087
0.606201  -0.049264
0.652988  -0.043963
0.699386  -0.036994
0.745363  -0.029123
0.790264  -0.021329
0.833208  -0.014263
0.873235  -0.008386
0.909350  -0.003976
0.940561  -0.001118
0.965947   0.000302
0.984691   0.000585
0.996152   0.000262
1.000000   0.000000
Dat file parser warnings
  • Line 2 - Invalid characters : x/c y/c
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Polars for NREL's S817 Airfoil (s817-nr)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   s817-nr50,000921.5 at α=11°Mach=0 Ncrit=9Xfoil predictionDetails
   s817-nr50,000517.9 at α=10.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s817-nr100,000925.9 at α=9.75°Mach=0 Ncrit=9Xfoil predictionDetails
   s817-nr100,000526.6 at α=9.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s817-nr200,000945.3 at α=8.75°Mach=0 Ncrit=9Xfoil predictionDetails
   s817-nr200,000553 at α=6.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s817-nr500,0009105.3 at α=6.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s817-nr500,0005101.1 at α=5.5°Mach=0 Ncrit=5Xfoil predictionDetails
   s817-nr1,000,0009137.3 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s817-nr1,000,0005126 at α=4.5°Mach=0 Ncrit=5Xfoil predictionDetails
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