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NACA 23021 (naca23021-il) Xfoil prediction polar at RE=100,000 Ncrit=9


Details Polar file
Airfoil: NACA 23021 (naca23021-il)
Reynolds number: 100,000
Max Cl/Cd: 36.96 at α=6.75°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-naca23021-il-100000.txt
Download as CSV file: xf-naca23021-il-100000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NACA 23021                                      
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     0.100 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -17.250  -0.5131   0.18179   0.17550  -0.0077   1.0000   0.1682
 -17.000  -0.4844   0.17781   0.17151  -0.0068   1.0000   0.1700
 -16.750  -1.0007   0.07755   0.06997  -0.0654   1.0000   0.1094
 -16.500  -1.0141   0.07306   0.06537  -0.0659   1.0000   0.1103
 -16.250  -0.9702   0.07357   0.06609  -0.0648   1.0000   0.1129
 -16.000  -1.0094   0.06748   0.05971  -0.0656   1.0000   0.1130
 -15.750  -1.0276   0.06352   0.05555  -0.0653   1.0000   0.1139
 -15.500  -1.0433   0.06003   0.05186  -0.0645   1.0000   0.1149
 -15.250  -1.0584   0.05687   0.04848  -0.0632   1.0000   0.1160
 -15.000  -1.0737   0.05400   0.04536  -0.0612   1.0000   0.1173
 -14.750  -1.0894   0.05144   0.04253  -0.0586   1.0000   0.1184
 -14.500  -1.1063   0.04925   0.04004  -0.0552   1.0000   0.1195
 -14.250  -1.0696   0.04762   0.03860  -0.0562   1.0000   0.1227
 -14.000  -1.0594   0.04605   0.03700  -0.0548   1.0000   0.1251
 -13.750  -1.0566   0.04441   0.03521  -0.0526   1.0000   0.1276
 -13.500  -1.0610   0.04281   0.03339  -0.0494   1.0000   0.1298
 -13.250  -1.0323   0.04133   0.03204  -0.0496   1.0000   0.1336
 -13.000  -1.0169   0.04013   0.03087  -0.0483   1.0000   0.1373
 -12.750  -1.0147   0.03882   0.02941  -0.0454   1.0000   0.1407
 -12.500  -0.9922   0.03754   0.02824  -0.0448   1.0000   0.1455
 -12.250  -0.9803   0.03650   0.02726  -0.0428   1.0000   0.1504
 -12.000  -0.9815   0.03541   0.02601  -0.0390   1.0000   0.1549
 -11.750  -0.9599   0.03438   0.02526  -0.0382   1.0000   0.1616
 -11.500  -0.9630   0.03346   0.02420  -0.0339   1.0000   0.1674
 -11.250  -0.9518   0.03253   0.02353  -0.0316   1.0000   0.1749
 -11.000  -0.9566   0.03173   0.02269  -0.0267   1.0000   0.1821
 -10.750  -0.9574   0.03102   0.02217  -0.0224   1.0000   0.1897
 -10.500  -0.9662   0.03039   0.02154  -0.0166   1.0000   0.1975
 -10.250  -0.9724   0.02980   0.02108  -0.0113   1.0000   0.2060
 -10.000  -0.9773   0.02916   0.02053  -0.0062   1.0000   0.2158
  -9.750  -0.9832   0.02860   0.01996  -0.0009   1.0000   0.2273
  -9.500  -0.9856   0.02806   0.01959   0.0038   1.0000   0.2389
  -9.250  -0.9874   0.02756   0.01920   0.0084   1.0000   0.2521
  -9.000  -0.9878   0.02710   0.01882   0.0128   1.0000   0.2671
  -8.750  -0.9866   0.02668   0.01847   0.0169   1.0000   0.2835
  -8.500  -0.9837   0.02632   0.01816   0.0207   1.0000   0.3009
  -8.250  -0.9791   0.02601   0.01787   0.0241   1.0000   0.3186
  -8.000  -0.9725   0.02578   0.01765   0.0273   1.0000   0.3359
  -7.750  -0.9627   0.02560   0.01761   0.0299   1.0000   0.3519
  -7.500  -0.9240   0.02562   0.01763   0.0273   0.9928   0.3748
  -7.250  -0.8839   0.02567   0.01772   0.0245   0.9836   0.3956
  -7.000  -0.8416   0.02583   0.01792   0.0215   0.9749   0.4164
  -6.750  -0.8015   0.02597   0.01814   0.0191   0.9649   0.4357
  -6.500  -0.7634   0.02609   0.01835   0.0172   0.9547   0.4527
  -6.250  -0.7179   0.02611   0.01842   0.0139   0.9462   0.4692
  -6.000  -0.6878   0.02594   0.01818   0.0133   0.9345   0.4834
  -5.750  -0.6384   0.02589   0.01820   0.0095   0.9274   0.4982
  -5.500  -0.6093   0.02575   0.01809   0.0093   0.9152   0.5099
  -5.250  -0.5629   0.02552   0.01779   0.0060   0.9082   0.5262
  -5.000  -0.5327   0.02555   0.01797   0.0060   0.8958   0.5391
  -4.750  -0.4841   0.02543   0.01791   0.0028   0.8889   0.5564
  -4.500  -0.4563   0.02527   0.01772   0.0030   0.8770   0.5719
  -4.250  -0.4080   0.02506   0.01761   0.0001   0.8695   0.5867
  -4.000  -0.3548   0.02463   0.01723  -0.0037   0.8647   0.6010
  -3.750  -0.3387   0.02440   0.01691  -0.0014   0.8493   0.6152
  -3.500  -0.2849   0.02404   0.01668  -0.0048   0.8438   0.6279
  -3.250  -0.2638   0.02383   0.01647  -0.0032   0.8292   0.6414
  -3.000  -0.2184   0.02341   0.01607  -0.0051   0.8221   0.6559
  -2.750  -0.1920   0.02331   0.01602  -0.0041   0.8076   0.6680
  -2.500  -0.1552   0.02275   0.01538  -0.0046   0.7991   0.6840
  -2.250  -0.1238   0.02279   0.01552  -0.0041   0.7837   0.6945
  -2.000  -0.0908   0.02239   0.01506  -0.0040   0.7729   0.7091
  -1.750  -0.0587   0.02238   0.01507  -0.0036   0.7580   0.7205
  -1.500  -0.0318   0.02226   0.01493  -0.0026   0.7438   0.7335
  -1.250   0.0055   0.02216   0.01477  -0.0030   0.7317   0.7456
  -1.000   0.0307   0.02225   0.01486  -0.0018   0.7156   0.7574
  -0.750   0.0619   0.02228   0.01483  -0.0014   0.7019   0.7695
  -0.500   0.0951   0.02233   0.01482  -0.0014   0.6876   0.7801
  -0.250   0.1219   0.02253   0.01500  -0.0005   0.6719   0.7922
   0.000   0.1570   0.02266   0.01504  -0.0008   0.6582   0.8022
   0.250   0.1900   0.02288   0.01521  -0.0008   0.6428   0.8126
   0.500   0.2180   0.02307   0.01537  -0.0003   0.6275   0.8237
   0.750   0.2593   0.02338   0.01557  -0.0017   0.6131   0.8321
   1.000   0.2855   0.02350   0.01563  -0.0009   0.5982   0.8447
   1.250   0.3290   0.02395   0.01604  -0.0030   0.5816   0.8518
   1.500   0.3560   0.02406   0.01602  -0.0024   0.5687   0.8654
   1.750   0.4079   0.02447   0.01633  -0.0061   0.5517   0.8710
   2.000   0.4293   0.02467   0.01653  -0.0048   0.5371   0.8858
   2.250   0.4848   0.02502   0.01678  -0.0096   0.5203   0.8906
   2.750   0.5612   0.02544   0.01703  -0.0133   0.4905   0.9102
   3.000   0.6017   0.02568   0.01721  -0.0157   0.4753   0.9192
   3.250   0.6386   0.02580   0.01713  -0.0175   0.4621   0.9293
   3.500   0.6780   0.02596   0.01729  -0.0200   0.4463   0.9388
   3.750   0.7144   0.02615   0.01744  -0.0220   0.4322   0.9487
   4.000   0.7551   0.02626   0.01734  -0.0247   0.4197   0.9583
   4.250   0.7951   0.02638   0.01753  -0.0277   0.4055   0.9673
   4.500   0.8324   0.02657   0.01765  -0.0301   0.3940   0.9776
   4.750   0.8787   0.02653   0.01754  -0.0342   0.3815   0.9852
   5.000   0.9204   0.02671   0.01775  -0.0377   0.3703   0.9937
   5.250   0.9618   0.02670   0.01763  -0.0410   0.3602   1.0000
   5.500   0.9738   0.02697   0.01795  -0.0391   0.3524   1.0000
   5.750   0.9864   0.02714   0.01813  -0.0371   0.3447   1.0000
   6.250   1.0113   0.02767   0.01866  -0.0330   0.3311   1.0000
   6.500   1.0237   0.02788   0.01885  -0.0309   0.3244   1.0000
   6.750   1.0398   0.02813   0.01895  -0.0293   0.3184   1.0000
   7.000   1.0448   0.02852   0.01951  -0.0259   0.3116   1.0000
   7.250   1.0557   0.02876   0.01974  -0.0234   0.3052   1.0000
   7.500   1.0711   0.02905   0.01989  -0.0216   0.2996   1.0000
   7.750   1.0726   0.02951   0.02053  -0.0176   0.2935   1.0000
   8.000   1.0803   0.02976   0.02077  -0.0145   0.2870   1.0000
   8.250   1.0920   0.03002   0.02091  -0.0120   0.2808   1.0000
   8.500   1.0887   0.03046   0.02151  -0.0071   0.2745   1.0000
   8.750   1.0939   0.03071   0.02173  -0.0036   0.2683   1.0000
   9.000   1.1013   0.03106   0.02200  -0.0004   0.2625   1.0000
   9.250   1.0940   0.03154   0.02263   0.0051   0.2565   1.0000
   9.500   1.0953   0.03181   0.02286   0.0092   0.2502   1.0000
   9.750   1.0924   0.03220   0.02323   0.0140   0.2444   1.0000
  10.000   1.0783   0.03270   0.02383   0.0203   0.2384   1.0000
  10.250   1.0776   0.03302   0.02405   0.0244   0.2316   1.0000
  10.500   1.0666   0.03386   0.02501   0.0294   0.2244   1.0000
  10.750   1.0634   0.03454   0.02565   0.0331   0.2162   1.0000
  11.000   1.0535   0.03581   0.02701   0.0368   0.2068   1.0000
  11.250   1.0482   0.03706   0.02822   0.0396   0.1969   1.0000
  11.500   1.0408   0.03868   0.02980   0.0421   0.1862   1.0000
  11.750   1.0309   0.04086   0.03202   0.0442   0.1750   1.0000
  12.000   1.0244   0.04313   0.03426   0.0458   0.1651   1.0000
  12.250   1.0231   0.04519   0.03620   0.0469   0.1574   1.0000
  12.500   1.0220   0.04743   0.03846   0.0477   0.1506   1.0000
  12.750   1.0261   0.04936   0.04031   0.0485   0.1456   1.0000
  13.000   1.0282   0.05157   0.04258   0.0490   0.1411   1.0000
  13.250   1.0382   0.05304   0.04394   0.0495   0.1376   1.0000
  13.500   1.0440   0.05509   0.04602   0.0499   0.1346   1.0000
  13.750   1.0456   0.05757   0.04862   0.0502   0.1319   1.0000
  14.000   1.0522   0.05956   0.05064   0.0504   0.1295   1.0000
  14.250   1.0670   0.06077   0.05176   0.0507   0.1273   1.0000
  14.500   1.0811   0.06221   0.05315   0.0510   0.1255   1.0000
  14.750   1.0741   0.06575   0.05691   0.0508   0.1241   1.0000
  15.000   1.0666   0.06947   0.06082   0.0503   0.1229   1.0000
  15.250   1.0576   0.07352   0.06505   0.0495   0.1218   1.0000
  15.500   1.0447   0.07820   0.06991   0.0484   0.1209   1.0000
  15.750   1.0184   0.08480   0.07675   0.0463   0.1204   1.0000
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