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NREL's S809 Airfoil (s809-nr) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: NREL's S809 Airfoil (s809-nr)
Reynolds number: 200,000
Max Cl/Cd: 51.73 at α=8.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-s809-nr-200000.txt
Download as CSV file: xf-s809-nr-200000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NREL's S809 Airfoil                             
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     0.200 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -18.500  -0.3847   0.16853   0.16539  -0.0171   1.0000   0.0399
 -18.250  -0.3979   0.16359   0.16047  -0.0219   1.0000   0.0415
 -10.500  -0.5268   0.04432   0.03610  -0.0645   0.7562   0.0247
 -10.250  -0.4882   0.04514   0.03685  -0.0630   0.7504   0.0247
 -10.000  -0.4602   0.04550   0.03718  -0.0618   0.7451   0.0248
  -9.750  -0.4386   0.04542   0.03701  -0.0606   0.7408   0.0260
  -9.500  -0.4224   0.04504   0.03661  -0.0594   0.7373   0.0267
  -9.250  -0.4128   0.04401   0.03560  -0.0585   0.7339   0.0273
  -9.000  -0.4059   0.04263   0.03422  -0.0578   0.7308   0.0286
  -8.750  -0.4013   0.04102   0.03258  -0.0569   0.7280   0.0304
  -8.500  -0.3965   0.03946   0.03095  -0.0561   0.7255   0.0342
  -8.250  -0.3955   0.03769   0.02912  -0.0551   0.7232   0.0391
  -8.000  -0.3975   0.03576   0.02717  -0.0537   0.7209   0.0481
  -7.750  -0.4050   0.03363   0.02516  -0.0520   0.7185   0.0688
  -7.500  -0.4288   0.03063   0.02252  -0.0493   0.7164   0.1330
  -7.250  -0.4563   0.02741   0.01959  -0.0463   0.7144   0.1990
  -7.000  -0.4834   0.02420   0.01656  -0.0431   0.7125   0.2427
  -6.750  -0.5081   0.02134   0.01379  -0.0398   0.7108   0.2733
  -6.500  -0.1434   0.06175   0.05505  -0.0436   0.7076   0.5481
  -6.250  -0.1118   0.06006   0.05326  -0.0448   0.7063   0.5485
  -6.000  -0.0815   0.05857   0.05171  -0.0459   0.7051   0.5490
  -5.750  -0.0527   0.05729   0.05039  -0.0468   0.7038   0.5497
  -5.500  -0.0238   0.05622   0.04928  -0.0476   0.7026   0.5508
  -5.250   0.0034   0.05534   0.04836  -0.0483   0.7014   0.5525
  -5.000  -0.0377   0.05561   0.04867  -0.0436   0.7003   0.5637
  -4.750  -0.0060   0.05422   0.04723  -0.0447   0.6992   0.5642
  -4.500   0.0247   0.05305   0.04603  -0.0458   0.6981   0.5648
  -4.250   0.0548   0.05207   0.04502  -0.0467   0.6970   0.5658
  -4.000   0.0821   0.05125   0.04417  -0.0473   0.6957   0.5672
  -3.750   0.0386   0.05173   0.04469  -0.0416   0.6945   0.5790
  -3.500   0.0709   0.05045   0.04338  -0.0429   0.6937   0.5794
  -3.250   0.1022   0.04939   0.04229  -0.0439   0.6929   0.5800
  -3.000   0.1335   0.04851   0.04140  -0.0449   0.6922   0.5809
  -2.750   0.1627   0.04780   0.04068  -0.0457   0.6914   0.5821
  -2.500   0.1167   0.04836   0.04129  -0.0391   0.6906   0.5943
  -2.250   0.1493   0.04722   0.04017  -0.0405   0.6900   0.5947
  -2.000   0.1811   0.04627   0.03925  -0.0417   0.6893   0.5952
  -1.750   0.2124   0.04548   0.03850  -0.0427   0.6883   0.5961
  -1.500   0.2427   0.04487   0.03793  -0.0435   0.6872   0.5973
  -1.250   0.2693   0.04437   0.03748  -0.0440   0.6865   0.5989
  -1.000   0.2913   0.04395   0.03711  -0.0441   0.6857   0.6013
  -0.750   0.1889   0.04117   0.03437  -0.0334   0.6843   0.5948
  -0.500   0.2148   0.04066   0.03390  -0.0335   0.6830   0.5953
  -0.250   0.2413   0.04027   0.03355  -0.0338   0.6819   0.5960
   0.000   0.2675   0.03995   0.03327  -0.0340   0.6807   0.5969
   0.250   0.2950   0.03968   0.03305  -0.0343   0.6794   0.5982
   0.500   0.3239   0.03959   0.03300  -0.0348   0.6784   0.6007
   0.750   0.2347   0.03160   0.02473  -0.0337   0.6764   0.5827
   1.000   0.2584   0.03167   0.02482  -0.0336   0.6752   0.5842
   1.250   0.2753   0.03147   0.02470  -0.0335   0.6737   0.5860
   1.500   0.2900   0.03101   0.02431  -0.0339   0.6714   0.5880
   1.750   0.3068   0.03035   0.02364  -0.0350   0.6692   0.5907
   2.000   0.3277   0.02937   0.02254  -0.0374   0.6667   0.5947
   2.250   0.3504   0.02957   0.02284  -0.0369   0.6646   0.5956
   2.500   0.3754   0.02971   0.02305  -0.0368   0.6627   0.5966
   2.750   0.4033   0.02972   0.02311  -0.0370   0.6610   0.5978
   3.000   0.4330   0.02970   0.02310  -0.0377   0.6595   0.5989
   3.250   0.4337   0.03064   0.02424  -0.0355   0.6530   0.6002
   3.500   0.4566   0.03069   0.02434  -0.0356   0.6493   0.6018
   3.750   0.4870   0.03041   0.02408  -0.0366   0.6468   0.6035
   4.000   0.5220   0.02998   0.02365  -0.0382   0.6449   0.6056
   4.250   0.5283   0.03078   0.02453  -0.0370   0.6375   0.6080
   4.500   0.5575   0.03049   0.02424  -0.0381   0.6331   0.6100
   4.750   0.5942   0.02985   0.02367  -0.0391   0.6304   0.6111
   5.000   0.6365   0.02908   0.02292  -0.0407   0.6282   0.6123
   5.250   0.6385   0.02989   0.02393  -0.0379   0.6180   0.6133
   5.500   0.6847   0.02862   0.02270  -0.0398   0.6144   0.6148
   5.750   0.7071   0.02843   0.02262  -0.0391   0.6063   0.6162
   6.000   0.7501   0.02706   0.02126  -0.0406   0.5998   0.6183
   6.250   0.7834   0.02621   0.02046  -0.0412   0.5922   0.6205
   6.500   0.8181   0.02524   0.01952  -0.0421   0.5844   0.6226
   6.750   0.8523   0.02431   0.01861  -0.0430   0.5764   0.6245
   7.000   0.8880   0.02302   0.01735  -0.0437   0.5665   0.6260
   7.250   0.9114   0.02224   0.01673  -0.0426   0.5543   0.6272
   7.500   0.9364   0.02134   0.01596  -0.0417   0.5407   0.6286
   7.750   0.9578   0.02056   0.01536  -0.0403   0.5234   0.6301
   8.000   0.9735   0.02011   0.01513  -0.0382   0.4944   0.6319
   8.250   0.9880   0.01910   0.01367  -0.0350   0.4166   0.6339
   8.500   0.9748   0.01991   0.01399  -0.0286   0.3487   0.6355
   8.750   0.9561   0.02111   0.01487  -0.0221   0.3004   0.6370
   9.000   0.9392   0.02287   0.01635  -0.0170   0.2549   0.6384
   9.250   0.9236   0.02497   0.01821  -0.0133   0.2148   0.6397
   9.500   0.9099   0.02740   0.02040  -0.0106   0.1790   0.6408
   9.750   0.8995   0.02984   0.02267  -0.0085   0.1468   0.6419
  10.250   0.8886   0.03445   0.02699  -0.0054   0.0996   0.6443
  10.500   0.8878   0.03652   0.02899  -0.0043   0.0855   0.6456
  10.750   0.8891   0.03850   0.03094  -0.0032   0.0747   0.6471
  11.000   0.8900   0.04054   0.03292  -0.0022   0.0667   0.6488
  11.250   0.8969   0.04218   0.03459  -0.0016   0.0600   0.6508
  11.500   0.9016   0.04403   0.03641  -0.0007   0.0552   0.6528
  11.750   0.9120   0.04552   0.03794  -0.0004   0.0505   0.6549
  12.000   0.9201   0.04720   0.03951   0.0005   0.0463   0.6565
  12.250   0.9329   0.04848   0.04096   0.0009   0.0436   0.6581
  12.500   0.9460   0.04980   0.04236   0.0014   0.0410   0.6600
  12.750   0.9599   0.05112   0.04368   0.0019   0.0386   0.6619
  13.000   0.9790   0.05231   0.04494   0.0026   0.0361   0.6641
  13.250   0.9933   0.05378   0.04656   0.0029   0.0342   0.6665
  13.500   1.0089   0.05527   0.04813   0.0031   0.0326   0.6689
  14.000   1.0517   0.05849   0.05147   0.0038   0.0294   0.6736
  14.250   1.0535   0.06083   0.05408   0.0039   0.0285   0.6757
  14.500   1.0582   0.06335   0.05685   0.0040   0.0275   0.6782
  14.750   1.0631   0.06603   0.05976   0.0040   0.0266   0.6808
  15.000   1.0671   0.06882   0.06273   0.0039   0.0259   0.6837
  15.250   1.0693   0.07173   0.06576   0.0035   0.0251   0.6864
  15.500   1.0734   0.07444   0.06857   0.0031   0.0243   0.6888
  15.750   1.0737   0.07897   0.07328   0.0028   0.0234   0.6910
  16.000   1.0585   0.08333   0.07792   0.0016   0.0232   0.6929
  16.250   1.0427   0.08833   0.08321   0.0001   0.0229   0.6948
  16.500   1.0251   0.09402   0.08918  -0.0019   0.0227   0.6967
  16.750   1.0066   0.10014   0.09555  -0.0045   0.0225   0.6985
  17.000   0.9867   0.10700   0.10265  -0.0077   0.0226   0.7002
  17.250   0.9648   0.11460   0.11048  -0.0117   0.0225   0.7017
  17.500   0.9440   0.12245   0.11854  -0.0161   0.0227   0.7030
  17.750   0.9196   0.13156   0.12786  -0.0217   0.0228   0.7039
  18.000   0.8950   0.14143   0.13791  -0.0280   0.0231   0.7047
  18.250   0.8739   0.15115   0.14774  -0.0340   0.0234   0.7056
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