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NREL's S820 Airfoil (s820-nr) Xfoil prediction polar at RE=1,000,000 Ncrit=5


Details Polar file
Airfoil: NREL's S820 Airfoil (s820-nr)
Reynolds number: 1,000,000
Max Cl/Cd: 109.84 at α=3.75°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-s820-nr-1000000-n5.txt
Download as CSV file: xf-s820-nr-1000000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NREL's S820 Airfoil                             
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     1.000 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -11.500  -0.2859   0.08197   0.07937  -0.0962   0.7902   0.0047
 -11.250  -0.2955   0.07369   0.07104  -0.1018   0.7870   0.0047
 -11.000  -0.3148   0.06681   0.06408  -0.1054   0.7838   0.0047
 -10.750  -0.3296   0.06218   0.05937  -0.1074   0.7806   0.0047
 -10.500  -0.3486   0.05761   0.05470  -0.1083   0.7771   0.0047
 -10.250  -0.3637   0.05411   0.05109  -0.1082   0.7736   0.0047
 -10.000  -0.3778   0.05103   0.04789  -0.1073   0.7703   0.0047
  -9.750  -0.3933   0.04794   0.04469  -0.1057   0.7673   0.0047
  -9.500  -0.4039   0.04557   0.04221  -0.1035   0.7642   0.0047
  -9.250  -0.4165   0.04326   0.03977  -0.1003   0.7611   0.0047
  -9.000  -0.4255   0.04130   0.03767  -0.0967   0.7583   0.0047
  -8.000  -0.4390   0.02609   0.02139  -0.0838   0.7485   0.0027
  -7.750  -0.4271   0.02311   0.01810  -0.0819   0.7465   0.0026
  -7.500  -0.4093   0.02060   0.01530  -0.0805   0.7446   0.0025
  -7.250  -0.3880   0.01841   0.01283  -0.0796   0.7428   0.0024
  -7.000  -0.3651   0.01683   0.01105  -0.0790   0.7411   0.0024
  -6.750  -0.3420   0.01579   0.00988  -0.0784   0.7395   0.0024
  -6.500  -0.3198   0.01486   0.00885  -0.0777   0.7376   0.0024
  -6.250  -0.2995   0.01395   0.00784  -0.0767   0.7355   0.0024
  -6.000  -0.2788   0.01330   0.00711  -0.0758   0.7334   0.0024
  -5.750  -0.2582   0.01270   0.00644  -0.0749   0.7314   0.0024
  -5.500  -0.2378   0.01211   0.00576  -0.0739   0.7296   0.0024
  -5.250  -0.2157   0.01167   0.00526  -0.0732   0.7278   0.0024
  -5.000  -0.1929   0.01124   0.00478  -0.0727   0.7262   0.0025
  -4.750  -0.1690   0.01087   0.00437  -0.0723   0.7246   0.0025
  -4.500  -0.1446   0.01052   0.00399  -0.0720   0.7228   0.0026
  -4.250  -0.1194   0.01022   0.00365  -0.0718   0.7209   0.0027
  -4.000  -0.0936   0.00999   0.00338  -0.0718   0.7190   0.0028
  -3.750  -0.0681   0.00970   0.00305  -0.0716   0.7170   0.0032
  -3.500  -0.0416   0.00952   0.00284  -0.0717   0.7151   0.0039
  -3.250  -0.0147   0.00937   0.00266  -0.0718   0.7134   0.0047
  -3.000   0.0124   0.00921   0.00250  -0.0719   0.7118   0.0072
  -2.750   0.0394   0.00902   0.00236  -0.0721   0.7102   0.0178
  -2.500   0.0501   0.00689   0.00165  -0.0707   0.7082   0.4186
  -2.250   0.0727   0.00617   0.00156  -0.0704   0.7063   0.6089
  -2.000   0.1016   0.00617   0.00157  -0.0708   0.7044   0.6244
  -1.750   0.1306   0.00617   0.00154  -0.0712   0.7025   0.6287
  -1.500   0.1597   0.00617   0.00149  -0.0717   0.7006   0.6309
  -1.250   0.1888   0.00619   0.00146  -0.0722   0.6988   0.6331
  -1.000   0.2181   0.00619   0.00144  -0.0727   0.6972   0.6350
  -0.750   0.2474   0.00620   0.00143  -0.0733   0.6955   0.6368
  -0.500   0.2765   0.00619   0.00142  -0.0738   0.6935   0.6386
  -0.250   0.3056   0.00619   0.00142  -0.0742   0.6914   0.6406
   0.000   0.3346   0.00619   0.00142  -0.0747   0.6894   0.6428
   0.250   0.3636   0.00621   0.00142  -0.0752   0.6875   0.6450
   0.500   0.3926   0.00623   0.00143  -0.0757   0.6856   0.6472
   0.750   0.4216   0.00626   0.00145  -0.0762   0.6837   0.6493
   1.000   0.4507   0.00628   0.00147  -0.0767   0.6817   0.6511
   1.250   0.4796   0.00628   0.00150  -0.0772   0.6795   0.6531
   1.500   0.5083   0.00629   0.00153  -0.0776   0.6763   0.6551
   1.750   0.5364   0.00631   0.00154  -0.0779   0.6711   0.6572
   2.000   0.5644   0.00632   0.00156  -0.0782   0.6622   0.6597
   2.250   0.5917   0.00635   0.00157  -0.0783   0.6518   0.6621
   2.500   0.6189   0.00641   0.00159  -0.0784   0.6424   0.6645
   2.750   0.6467   0.00646   0.00165  -0.0786   0.6330   0.6665
   3.000   0.6737   0.00651   0.00171  -0.0787   0.6233   0.6687
   3.250   0.7003   0.00659   0.00178  -0.0788   0.6131   0.6709
   3.500   0.7266   0.00669   0.00186  -0.0787   0.6004   0.6733
   3.750   0.7513   0.00684   0.00197  -0.0784   0.5789   0.6757
   4.000   0.7725   0.00712   0.00212  -0.0774   0.5428   0.6781
   4.250   0.7893   0.00759   0.00237  -0.0755   0.4923   0.6803
   4.500   0.8020   0.00820   0.00274  -0.0730   0.4355   0.6826
   4.750   0.8139   0.00881   0.00313  -0.0703   0.3820   0.6852
   5.000   0.8284   0.00927   0.00344  -0.0681   0.3437   0.6881
   5.250   0.8382   0.00980   0.00379  -0.0651   0.3012   0.6910
   5.500   0.8482   0.01022   0.00409  -0.0620   0.2714   0.6938
   5.750   0.8592   0.01071   0.00447  -0.0592   0.2428   0.6962
   6.000   0.8726   0.01115   0.00484  -0.0569   0.2205   0.6989
   6.250   0.8847   0.01165   0.00526  -0.0544   0.1963   0.7017
   6.500   0.8981   0.01214   0.00568  -0.0523   0.1750   0.7046
   6.750   0.9122   0.01263   0.00611  -0.0504   0.1574   0.7075
   7.000   0.9258   0.01316   0.00658  -0.0484   0.1400   0.7102
   7.250   0.9403   0.01367   0.00705  -0.0467   0.1252   0.7131
   7.500   0.9549   0.01419   0.00754  -0.0450   0.1124   0.7164
   7.750   0.9688   0.01477   0.00808  -0.0433   0.0982   0.7199
   8.000   0.9835   0.01535   0.00863  -0.0418   0.0872   0.7233
   8.250   0.9989   0.01591   0.00918  -0.0404   0.0780   0.7263
   8.500   1.0122   0.01658   0.00982  -0.0387   0.0659   0.7297
   8.750   1.0282   0.01714   0.01039  -0.0375   0.0599   0.7333
   9.000   1.0417   0.01785   0.01106  -0.0360   0.0502   0.7370
   9.250   1.0556   0.01857   0.01175  -0.0346   0.0419   0.7405
   9.500   1.0709   0.01920   0.01241  -0.0335   0.0364   0.7443
   9.750   1.0837   0.02001   0.01320  -0.0320   0.0283   0.7488
  10.000   1.0958   0.02087   0.01403  -0.0305   0.0207   0.7533
  10.250   1.1092   0.02168   0.01484  -0.0293   0.0164   0.7579
  10.500   1.1220   0.02253   0.01571  -0.0280   0.0124   0.7630
  10.750   1.1354   0.02337   0.01657  -0.0268   0.0094   0.7681
  11.000   1.1498   0.02415   0.01740  -0.0257   0.0082   0.7734
  11.250   1.1618   0.02511   0.01838  -0.0245   0.0054   0.7799
  11.500   1.1759   0.02593   0.01928  -0.0235   0.0049   0.7863
  11.750   1.1887   0.02685   0.02025  -0.0224   0.0039   0.7938
  12.000   1.2021   0.02775   0.02121  -0.0214   0.0031   0.8012
  12.250   1.2144   0.02874   0.02227  -0.0204   0.0026   0.8100
  12.500   1.2272   0.02970   0.02331  -0.0194   0.0019   0.8197
  12.750   1.2391   0.03072   0.02442  -0.0184   0.0016   0.8321
  13.000   1.2487   0.03191   0.02570  -0.0172   0.0008   0.8478
  13.250   1.2591   0.03299   0.02691  -0.0160   0.0007   0.8708
  13.500   1.2704   0.03397   0.02818  -0.0150   0.0007   0.9519
  13.750   1.2831   0.03525   0.02953  -0.0147   0.0005   1.0000
  14.000   1.2936   0.03658   0.03092  -0.0140   0.0005   1.0000
  14.250   1.3036   0.03799   0.03239  -0.0133   0.0004   1.0000
  14.500   1.3113   0.03962   0.03410  -0.0125   0.0003   1.0000
  14.750   1.3212   0.04109   0.03563  -0.0119   0.0003   1.0000
  15.000   1.3290   0.04276   0.03737  -0.0112   0.0003   1.0000
  15.250   1.3326   0.04492   0.03964  -0.0104   0.0002   1.0000
  15.500   1.3399   0.04675   0.04154  -0.0099   0.0001   1.0000
  15.750   1.3464   0.04870   0.04357  -0.0095   0.0001   1.0000
  16.000   1.3503   0.05096   0.04594  -0.0091   0.0001   1.0000
  16.250   1.3561   0.05306   0.04813  -0.0089   0.0001   1.0000
  16.500   1.3589   0.05556   0.05072  -0.0086   0.0001   1.0000
  16.750   1.3604   0.05830   0.05357  -0.0085   0.0001   1.0000
  17.000   1.3638   0.06085   0.05621  -0.0086   0.0001   1.0000
  17.250   1.3652   0.06371   0.05917  -0.0088   0.0001   1.0000
  17.500   1.3651   0.06683   0.06239  -0.0091   0.0001   1.0000
  17.750   1.3624   0.07042   0.06610  -0.0096   0.0001   1.0000
  18.000   1.3577   0.07438   0.07020  -0.0104   0.0001   1.0000
  18.250   1.3508   0.07884   0.07479  -0.0115   0.0001   1.0000
  18.500   1.3501   0.08243   0.07847  -0.0126   0.0001   1.0000
  18.750   1.3397   0.08769   0.08388  -0.0143   0.0001   1.0000
  19.000   1.3321   0.09269   0.08900  -0.0162   0.0001   1.0000
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