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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


Airfoil s819-nr
Details Dat file Parser  
(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
Dat file parser warnings
  • Line 2 - Invalid characters : x/c y/c
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Polars for NREL's S819 Airfoil (s819-nr)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   s819-nr50,00097.9 at α=0.75°Mach=0 Ncrit=9Xfoil predictionDetails
   s819-nr50,000522.6 at α=9.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s819-nr100,000938.4 at α=10.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s819-nr100,000540.4 at α=8.75°Mach=0 Ncrit=5Xfoil predictionDetails
   s819-nr200,000955.6 at α=9.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s819-nr200,000554.8 at α=8.5°Mach=0 Ncrit=5Xfoil predictionDetails
   s819-nr500,000977.6 at α=8.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s819-nr500,000572.5 at α=7.75°Mach=0 Ncrit=5Xfoil predictionDetails
   s819-nr1,000,000993.4 at α=7.75°Mach=0 Ncrit=9Xfoil predictionDetails
   s819-nr1,000,000584.1 at α=6.75°Mach=0 Ncrit=5Xfoil predictionDetails
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