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NREL's S826 Airfoil (s826-nr)

NREL's S826 Airfoil - NREL HAWT airfoil S826 tip 14.0% Dia=20 to 40 m Re=1.5E+6 Clmax(S)=1.42 Clmax(R)=1.31 High max lift coef


Airfoil s826-nr
Details Dat file Parser  
(s826-nr) NREL's S826 Airfoil
NREL HAWT airfoil S826 tip 14.0% Dia=20 to 40 m Re=1.5E+6 Clmax(S)=1.42 Clmax(R)=1.31 High max lift coef
Max thickness 14% at 33.7% chord.
Max camber 4.3% at 62% chord
Source NWTC National WInd Technology Center
Source dat file
The dat file is in Selig format
NREL's S826 Airfoil
   x/c        y/c
1.000000   0.000000
0.996640   0.000985
0.987056   0.004265
0.972314   0.009834
0.953332   0.017037
0.930531   0.024949
0.903794   0.032768
0.872736   0.040403
0.837646   0.048100
0.799007   0.055842
0.757330   0.063544
0.713160   0.071084
0.667064   0.078312
0.619624   0.085056
0.571426   0.091118
0.523051   0.096277
0.475063   0.100280
0.428007   0.102811
0.382245   0.103258
0.337323   0.101581
0.293568   0.098300
0.251455   0.093644
0.211424   0.087785
0.173909   0.080881
0.139301   0.073078
0.107962   0.064532
0.080220   0.055386
0.056312   0.045810
0.036491   0.035989
0.020843   0.026134
0.009548   0.016553
0.002548   0.007584
0.000169   0.001654
0.000001   0.000102
0.000000   0.000006
0.000198  -0.001417
0.000946  -0.002691
0.002165  -0.003992
0.003667  -0.005223
0.013639  -0.010342
0.029183  -0.015169
0.049938  -0.019578
0.075768  -0.023565
0.106324  -0.027219
0.141288  -0.030720
0.179884  -0.034729
0.220074  -0.038653
0.261526  -0.040769
0.304974  -0.040625
0.350096  -0.038079
0.397636  -0.032821
0.447637  -0.025646
0.500087  -0.017114
0.554624  -0.008267
0.610364   0.000049
0.666289   0.007219
0.721305   0.012793
0.774276   0.016474
0.824060   0.018113
0.869551   0.017689
0.909558   0.015218
0.942700   0.011278
0.968241   0.006966
0.986101   0.003275
0.996568   0.000850
1.000000   0.000000
Dat file parser warnings
  • Line 2 - Invalid characters : x/c y/c
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Polars for NREL's S826 Airfoil (s826-nr)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   s826-nr50,000934.6 at α=9.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s826-nr50,000534.4 at α=8°Mach=0 Ncrit=5Xfoil predictionDetails
   s826-nr100,000960.9 at α=8.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s826-nr100,000560 at α=7°Mach=0 Ncrit=5Xfoil predictionDetails
   s826-nr200,000983 at α=7.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s826-nr200,000581.4 at α=6.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s826-nr500,0009114 at α=6.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s826-nr500,0005107.7 at α=5.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s826-nr1,000,0009137.7 at α=5.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s826-nr1,000,0005126.7 at α=4.25°Mach=0 Ncrit=5Xfoil predictionDetails
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