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NREL's S820 Airfoil (s820-nr) Xfoil prediction polar at RE=200,000 Ncrit=5


Details Polar file
Airfoil: NREL's S820 Airfoil (s820-nr)
Reynolds number: 200,000
Max Cl/Cd: 65.93 at α=6.5°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-s820-nr-200000-n5.txt
Download as CSV file: xf-s820-nr-200000-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 =     0.200 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -11.750  -0.2930   0.09783   0.09421  -0.0888   0.9396   0.0206
 -11.500  -0.2906   0.09150   0.08786  -0.0939   0.9298   0.0206
 -11.250  -0.2948   0.08356   0.07986  -0.1005   0.9182   0.0204
 -10.750  -0.2644   0.05826   0.05429  -0.1032   0.8706   0.0101
 -10.500  -0.2821   0.05328   0.04921  -0.1047   0.8657   0.0101
 -10.000  -0.3650   0.05615   0.05156  -0.1101   0.8702   0.0101
  -9.750  -0.3766   0.05342   0.04870  -0.1090   0.8626   0.0099
  -9.500  -0.3856   0.05113   0.04627  -0.1074   0.8565   0.0098
  -9.250  -0.3959   0.04887   0.04385  -0.1050   0.8499   0.0097
  -9.000  -0.4039   0.04696   0.04175  -0.1020   0.8447   0.0095
  -8.750  -0.4078   0.04456   0.03914  -0.0995   0.8395   0.0093
  -8.500  -0.4081   0.04200   0.03634  -0.0971   0.8348   0.0090
  -8.250  -0.4043   0.03948   0.03355  -0.0948   0.8311   0.0088
  -8.000  -0.3974   0.03681   0.03055  -0.0926   0.8277   0.0084
  -7.750  -0.3872   0.03401   0.02740  -0.0905   0.8237   0.0081
  -7.500  -0.3725   0.03076   0.02364  -0.0883   0.8202   0.0075
  -7.250  -0.3533   0.02850   0.02099  -0.0870   0.8174   0.0074
  -7.000  -0.3311   0.02669   0.01887  -0.0863   0.8152   0.0073
  -6.750  -0.3071   0.02517   0.01713  -0.0858   0.8127   0.0073
  -6.500  -0.2823   0.02378   0.01557  -0.0855   0.8098   0.0073
  -6.250  -0.2576   0.02249   0.01417  -0.0852   0.8070   0.0076
  -6.000  -0.2335   0.02146   0.01305  -0.0847   0.8043   0.0078
  -5.750  -0.2110   0.02056   0.01205  -0.0840   0.8019   0.0080
  -5.500  -0.1904   0.01973   0.01114  -0.0830   0.7999   0.0086
  -5.250  -0.1724   0.01906   0.01043  -0.0817   0.7970   0.0089
  -5.000  -0.1550   0.01845   0.00976  -0.0803   0.7940   0.0095
  -4.750  -0.1370   0.01791   0.00916  -0.0790   0.7912   0.0106
  -4.500  -0.1175   0.01746   0.00868  -0.0781   0.7887   0.0128
  -4.250  -0.0977   0.01695   0.00806  -0.0770   0.7864   0.0145
  -4.000  -0.0784   0.01644   0.00746  -0.0759   0.7840   0.0163
  -3.750  -0.0584   0.01606   0.00701  -0.0748   0.7811   0.0201
  -3.500  -0.0411   0.01540   0.00651  -0.0735   0.7783   0.0564
  -3.250  -0.0534   0.01274   0.00619  -0.0681   0.7750   0.5944
  -3.000  -0.0299   0.01355   0.00708  -0.0662   0.7731   0.6673
  -2.750  -0.0029   0.01405   0.00754  -0.0653   0.7714   0.6856
  -2.500   0.0240   0.01403   0.00740  -0.0654   0.7691   0.6883
  -2.250   0.0500   0.01402   0.00728  -0.0655   0.7662   0.6911
  -2.000   0.0768   0.01398   0.00712  -0.0657   0.7637   0.6939
  -1.750   0.1041   0.01396   0.00700  -0.0660   0.7616   0.6964
  -1.500   0.1320   0.01396   0.00693  -0.0663   0.7597   0.6983
  -1.250   0.1605   0.01395   0.00684  -0.0666   0.7580   0.7002
  -1.000   0.1894   0.01393   0.00673  -0.0671   0.7564   0.7023
  -0.750   0.2147   0.01399   0.00677  -0.0670   0.7535   0.7049
  -0.500   0.2404   0.01405   0.00679  -0.0671   0.7507   0.7079
  -0.250   0.2673   0.01408   0.00678  -0.0674   0.7484   0.7107
   0.000   0.2947   0.01411   0.00680  -0.0675   0.7463   0.7124
   0.250   0.3228   0.01413   0.00680  -0.0679   0.7443   0.7144
   0.500   0.3516   0.01414   0.00678  -0.0683   0.7427   0.7165
   0.750   0.3794   0.01420   0.00684  -0.0687   0.7409   0.7191
   1.000   0.4025   0.01436   0.00703  -0.0683   0.7374   0.7222
   1.250   0.4284   0.01446   0.00712  -0.0684   0.7345   0.7254
   1.500   0.4551   0.01452   0.00723  -0.0684   0.7322   0.7273
   1.750   0.4829   0.01457   0.00730  -0.0687   0.7301   0.7295
   2.000   0.5119   0.01459   0.00735  -0.0692   0.7284   0.7319
   2.250   0.5390   0.01467   0.00746  -0.0694   0.7261   0.7347
   2.500   0.5603   0.01487   0.00773  -0.0687   0.7216   0.7378
   2.750   0.5866   0.01493   0.00783  -0.0687   0.7182   0.7408
   3.000   0.6150   0.01491   0.00788  -0.0690   0.7155   0.7432
   3.250   0.6459   0.01483   0.00783  -0.0697   0.7131   0.7459
   3.500   0.6647   0.01497   0.00809  -0.0684   0.7063   0.7492
   3.750   0.6949   0.01472   0.00787  -0.0688   0.7005   0.7523
   4.000   0.7179   0.01461   0.00782  -0.0680   0.6918   0.7555
   4.250   0.7483   0.01429   0.00753  -0.0683   0.6847   0.7579
   4.500   0.7671   0.01431   0.00768  -0.0668   0.6753   0.7610
   4.750   0.7927   0.01419   0.00764  -0.0664   0.6672   0.7646
   5.000   0.8163   0.01413   0.00765  -0.0657   0.6580   0.7687
   5.250   0.8365   0.01413   0.00776  -0.0644   0.6471   0.7719
   5.500   0.8578   0.01408   0.00782  -0.0633   0.6345   0.7754
   5.750   0.8785   0.01404   0.00785  -0.0620   0.6195   0.7793
   6.000   0.8995   0.01402   0.00786  -0.0608   0.6014   0.7835
   6.250   0.9170   0.01407   0.00797  -0.0589   0.5780   0.7871
   6.500   0.9316   0.01413   0.00796  -0.0563   0.5391   0.7913
   6.750   0.9368   0.01450   0.00805  -0.0522   0.4832   0.7967
   7.000   0.9330   0.01533   0.00860  -0.0469   0.4296   0.8020
   7.250   0.9294   0.01632   0.00938  -0.0420   0.3834   0.8079
   7.500   0.9260   0.01747   0.01032  -0.0376   0.3379   0.8144
   7.750   0.9253   0.01858   0.01129  -0.0338   0.2993   0.8203
   8.000   0.9281   0.01970   0.01228  -0.0308   0.2655   0.8275
   8.250   0.9319   0.02077   0.01328  -0.0280   0.2350   0.8346
   8.750   0.9454   0.02289   0.01529  -0.0236   0.1842   0.8519
   9.000   0.9541   0.02389   0.01626  -0.0217   0.1631   0.8620
   9.250   0.9636   0.02486   0.01724  -0.0199   0.1457   0.8743
   9.500   0.9729   0.02582   0.01822  -0.0181   0.1302   0.8907
   9.750   0.9837   0.02675   0.01920  -0.0166   0.1169   0.9178
  10.250   1.0105   0.02874   0.02126  -0.0153   0.0930   1.0000
  10.500   1.0231   0.02987   0.02239  -0.0145   0.0837   1.0000
  10.750   1.0347   0.03107   0.02358  -0.0136   0.0751   1.0000
  11.000   1.0480   0.03216   0.02471  -0.0129   0.0670   1.0000
  11.250   1.0598   0.03338   0.02596  -0.0120   0.0591   1.0000
  11.500   1.0704   0.03471   0.02727  -0.0112   0.0512   1.0000
  11.750   1.0830   0.03591   0.02854  -0.0105   0.0448   1.0000
  12.000   1.0927   0.03735   0.03001  -0.0096   0.0393   1.0000
  12.250   1.1034   0.03875   0.03149  -0.0089   0.0339   1.0000
  12.500   1.1116   0.04039   0.03318  -0.0080   0.0298   1.0000
  12.750   1.1207   0.04198   0.03484  -0.0073   0.0255   1.0000
  13.000   1.1264   0.04392   0.03683  -0.0064   0.0228   1.0000
  13.250   1.1345   0.04568   0.03871  -0.0057   0.0200   1.0000
  13.500   1.1388   0.04784   0.04092  -0.0050   0.0177   1.0000
  13.750   1.1440   0.04996   0.04317  -0.0044   0.0157   1.0000
  14.000   1.1494   0.05211   0.04544  -0.0039   0.0140   1.0000
  14.250   1.1501   0.05482   0.04821  -0.0035   0.0126   1.0000
  14.500   1.1560   0.05703   0.05057  -0.0033   0.0110   1.0000
  14.750   1.1580   0.05974   0.05344  -0.0031   0.0100   1.0000
  15.000   1.1587   0.06262   0.05643  -0.0031   0.0092   1.0000
  15.250   1.1599   0.06561   0.05957  -0.0032   0.0077   1.0000
  15.500   1.1579   0.06905   0.06317  -0.0035   0.0074   1.0000
  15.750   1.1555   0.07268   0.06695  -0.0040   0.0070   1.0000
  16.000   1.1495   0.07691   0.07131  -0.0049   0.0063   1.0000
  16.250   1.1433   0.08132   0.07587  -0.0060   0.0062   1.0000
  16.500   1.1349   0.08625   0.08099  -0.0074   0.0059   1.0000
  16.750   1.1266   0.09139   0.08634  -0.0092   0.0056   1.0000
  17.000   1.1174   0.09683   0.09196  -0.0113   0.0054   1.0000
  17.250   1.1079   0.10254   0.09785  -0.0137   0.0053   1.0000
  17.500   1.0975   0.10862   0.10411  -0.0166   0.0052   1.0000
  17.750   1.0857   0.11520   0.11087  -0.0199   0.0051   1.0000
  18.000   1.0724   0.12232   0.11816  -0.0237   0.0048   1.0000
  18.250   1.0603   0.12947   0.12547  -0.0278   0.0047   1.0000
  18.500   1.0498   0.13629   0.13246  -0.0317   0.0050   1.0000
  18.750   1.0349   0.14450   0.14082  -0.0365   0.0048   1.0000
  19.000   1.0228   0.15223   0.14870  -0.0411   0.0049   1.0000
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