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NACA 64(4)-221 (naca644221-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: NACA 64(4)-221 (naca644221-il)
Reynolds number: 500,000
Max Cl/Cd: 90.72 at α=8.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-naca644221-il-500000.txt
Download as CSV file: xf-naca644221-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NACA 64(4)-221                                  
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     0.500 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.0626   0.08771   0.08267  -0.0510   1.0000   0.0296
 -19.500  -1.0628   0.08438   0.07921  -0.0523   1.0000   0.0298
 -19.250  -1.0551   0.08243   0.07723  -0.0526   1.0000   0.0301
 -19.000  -1.0461   0.08072   0.07552  -0.0528   1.0000   0.0305
 -18.750  -1.0388   0.07865   0.07343  -0.0534   1.0000   0.0309
 -18.500  -1.0326   0.07638   0.07113  -0.0541   1.0000   0.0312
 -18.250  -1.0266   0.07407   0.06878  -0.0548   1.0000   0.0316
 -18.000  -1.0200   0.07190   0.06657  -0.0553   1.0000   0.0320
 -17.750  -1.0134   0.06971   0.06432  -0.0559   1.0000   0.0325
 -17.500  -1.0075   0.06746   0.06200  -0.0564   1.0000   0.0330
 -17.250  -1.0001   0.06543   0.05990  -0.0569   1.0000   0.0334
 -17.000  -0.9937   0.06321   0.05758  -0.0574   1.0000   0.0339
 -16.750  -0.9848   0.06151   0.05585  -0.0575   1.0000   0.0343
 -16.500  -0.9764   0.05987   0.05423  -0.0574   1.0000   0.0349
 -16.250  -0.9679   0.05811   0.05247  -0.0576   1.0000   0.0354
 -16.000  -0.9595   0.05632   0.05066  -0.0577   1.0000   0.0360
 -15.750  -0.9512   0.05451   0.04882  -0.0579   1.0000   0.0366
 -15.500  -0.9421   0.05281   0.04708  -0.0580   1.0000   0.0373
 -15.250  -0.9327   0.05115   0.04536  -0.0581   1.0000   0.0380
 -15.000  -0.9232   0.04952   0.04367  -0.0582   1.0000   0.0385
 -14.750  -0.9172   0.04772   0.04189  -0.0580   1.0000   0.0394
 -14.500  -0.9096   0.04602   0.04019  -0.0579   1.0000   0.0402
 -14.250  -0.9015   0.04435   0.03852  -0.0578   1.0000   0.0409
 -14.000  -0.8916   0.04285   0.03700  -0.0577   1.0000   0.0420
 -13.750  -0.8814   0.04139   0.03550  -0.0576   1.0000   0.0430
 -13.500  -0.8725   0.03986   0.03393  -0.0575   1.0000   0.0440
 -13.250  -0.8670   0.03810   0.03220  -0.0572   1.0000   0.0451
 -13.000  -0.8359   0.03619   0.03027  -0.0618   0.9537   0.0470
 -12.750  -0.7973   0.03454   0.02849  -0.0674   0.9278   0.0491
 -12.500  -0.7858   0.03280   0.02665  -0.0683   0.8982   0.0511
 -12.250  -0.7782   0.03154   0.02529  -0.0674   0.8775   0.0528
 -12.000  -0.7684   0.03051   0.02415  -0.0665   0.8619   0.0548
 -11.750  -0.7649   0.02911   0.02267  -0.0652   0.8484   0.0571
 -11.500  -0.7581   0.02788   0.02140  -0.0641   0.8364   0.0598
 -11.250  -0.7499   0.02677   0.02022  -0.0630   0.8258   0.0629
 -11.000  -0.7445   0.02549   0.01892  -0.0617   0.8154   0.0664
 -10.750  -0.7371   0.02437   0.01774  -0.0604   0.8066   0.0708
 -10.500  -0.7308   0.02318   0.01655  -0.0590   0.7974   0.0764
 -10.250  -0.7255   0.02201   0.01534  -0.0575   0.7891   0.0826
 -10.000  -0.7193   0.02085   0.01420  -0.0560   0.7808   0.0904
  -9.750  -0.7136   0.01976   0.01310  -0.0543   0.7728   0.0997
  -9.500  -0.7080   0.01869   0.01205  -0.0525   0.7654   0.1103
  -9.250  -0.7037   0.01760   0.01100  -0.0505   0.7575   0.1233
  -9.000  -0.7003   0.01658   0.00999  -0.0481   0.7503   0.1381
  -8.750  -0.6981   0.01556   0.00904  -0.0455   0.7432   0.1558
  -8.500  -0.6985   0.01463   0.00817  -0.0421   0.7359   0.1760
  -8.250  -0.7016   0.01393   0.00751  -0.0379   0.7292   0.1991
  -8.000  -0.6964   0.01309   0.00684  -0.0350   0.7228   0.2337
  -7.750  -0.6892   0.01219   0.00615  -0.0325   0.7161   0.2809
  -7.500  -0.6796   0.01130   0.00548  -0.0303   0.7100   0.3374
  -7.250  -0.6649   0.01058   0.00507  -0.0287   0.7040   0.3981
  -7.000  -0.6407   0.01040   0.00494  -0.0284   0.6977   0.4350
  -6.750  -0.6141   0.01035   0.00482  -0.0283   0.6920   0.4526
  -6.500  -0.5871   0.01031   0.00476  -0.0283   0.6866   0.4652
  -6.250  -0.5593   0.01026   0.00468  -0.0284   0.6809   0.4749
  -6.000  -0.5314   0.01026   0.00462  -0.0285   0.6753   0.4839
  -5.750  -0.5034   0.01028   0.00453  -0.0286   0.6700   0.4915
  -5.500  -0.4751   0.01030   0.00457  -0.0287   0.6649   0.5002
  -5.250  -0.4467   0.01034   0.00451  -0.0289   0.6596   0.5073
  -5.000  -0.4181   0.01031   0.00448  -0.0291   0.6545   0.5128
  -4.750  -0.3894   0.01038   0.00446  -0.0293   0.6495   0.5179
  -4.500  -0.3604   0.01039   0.00443  -0.0296   0.6449   0.5229
  -4.250  -0.3317   0.01037   0.00441  -0.0299   0.6401   0.5291
  -4.000  -0.3028   0.01049   0.00451  -0.0300   0.6355   0.5361
  -3.750  -0.2740   0.01065   0.00456  -0.0302   0.6310   0.5423
  -3.500  -0.2450   0.01058   0.00449  -0.0306   0.6270   0.5463
  -3.250  -0.2157   0.01051   0.00442  -0.0309   0.6228   0.5488
  -3.000  -0.1864   0.01047   0.00435  -0.0313   0.6186   0.5511
  -2.750  -0.1571   0.01046   0.00429  -0.0317   0.6146   0.5533
  -2.500  -0.1278   0.01048   0.00424  -0.0321   0.6105   0.5556
  -2.250  -0.0984   0.01044   0.00419  -0.0325   0.6071   0.5579
  -2.000  -0.0690   0.01042   0.00414  -0.0329   0.6036   0.5602
  -1.750  -0.0395   0.01043   0.00409  -0.0333   0.6002   0.5624
  -1.500  -0.0103   0.01037   0.00400  -0.0338   0.5970   0.5650
  -1.250   0.0190   0.01035   0.00397  -0.0341   0.5938   0.5674
  -1.000   0.0484   0.01037   0.00398  -0.0346   0.5909   0.5696
  -0.750   0.0778   0.01035   0.00398  -0.0350   0.5883   0.5717
  -0.500   0.1073   0.01034   0.00397  -0.0354   0.5855   0.5738
  -0.250   0.1368   0.01035   0.00397  -0.0359   0.5828   0.5761
   0.000   0.1663   0.01036   0.00396  -0.0363   0.5803   0.5784
   0.250   0.1959   0.01039   0.00396  -0.0368   0.5779   0.5807
   0.500   0.2255   0.01045   0.00397  -0.0373   0.5754   0.5831
   0.750   0.2548   0.01048   0.00402  -0.0377   0.5727   0.5860
   1.000   0.2839   0.01047   0.00406  -0.0381   0.5707   0.5886
   1.250   0.3133   0.01049   0.00413  -0.0385   0.5687   0.5913
   1.500   0.3426   0.01053   0.00419  -0.0389   0.5666   0.5942
   1.750   0.3721   0.01058   0.00425  -0.0394   0.5645   0.5973
   2.000   0.4016   0.01063   0.00429  -0.0398   0.5622   0.6003
   2.250   0.4309   0.01065   0.00431  -0.0402   0.5597   0.6034
   2.500   0.4601   0.01068   0.00438  -0.0406   0.5572   0.6069
   2.750   0.4896   0.01084   0.00454  -0.0411   0.5544   0.6104
   3.000   0.5184   0.01087   0.00463  -0.0414   0.5526   0.6141
   3.250   0.5474   0.01093   0.00474  -0.0418   0.5507   0.6180
   3.500   0.5765   0.01101   0.00484  -0.0422   0.5485   0.6216
   3.750   0.6052   0.01102   0.00494  -0.0425   0.5462   0.6260
   4.000   0.6341   0.01108   0.00506  -0.0428   0.5440   0.6304
   4.250   0.6632   0.01115   0.00515  -0.0432   0.5416   0.6352
   4.500   0.6924   0.01123   0.00522  -0.0436   0.5383   0.6399
   4.750   0.7204   0.01128   0.00532  -0.0437   0.5337   0.6446
   5.000   0.7475   0.01122   0.00536  -0.0437   0.5286   0.6494
   5.250   0.7754   0.01117   0.00533  -0.0437   0.5227   0.6546
   5.500   0.8035   0.01125   0.00537  -0.0439   0.5166   0.6598
   5.750   0.8303   0.01123   0.00546  -0.0438   0.5121   0.6649
   6.000   0.8574   0.01123   0.00556  -0.0438   0.5074   0.6703
   6.250   0.8849   0.01128   0.00561  -0.0438   0.5024   0.6761
   6.500   0.9115   0.01135   0.00571  -0.0438   0.4962   0.6816
   6.750   0.9364   0.01130   0.00577  -0.0433   0.4879   0.6873
   7.000   0.9617   0.01138   0.00586  -0.0430   0.4800   0.6933
   7.250   0.9870   0.01142   0.00600  -0.0427   0.4723   0.6995
   7.500   1.0111   0.01153   0.00610  -0.0422   0.4639   0.7054
   7.750   1.0351   0.01158   0.00629  -0.0416   0.4539   0.7116
   8.000   1.0574   0.01172   0.00645  -0.0408   0.4415   0.7182
   8.250   1.0778   0.01188   0.00663  -0.0397   0.4233   0.7246
   8.500   1.0902   0.01220   0.00691  -0.0373   0.3915   0.7312
   8.750   1.0873   0.01288   0.00740  -0.0324   0.3552   0.7387
   9.000   1.0790   0.01380   0.00819  -0.0270   0.3244   0.7461
   9.250   1.0706   0.01496   0.00925  -0.0221   0.2933   0.7539
   9.500   1.0614   0.01640   0.01054  -0.0178   0.2624   0.7623
   9.750   1.0543   0.01789   0.01196  -0.0140   0.2350   0.7701
  10.000   1.0480   0.01954   0.01352  -0.0108   0.2117   0.7789
  10.250   1.0445   0.02117   0.01510  -0.0082   0.1901   0.7873
  10.500   1.0407   0.02292   0.01679  -0.0057   0.1703   0.7964
  10.750   1.0386   0.02468   0.01851  -0.0036   0.1534   0.8057
  11.000   1.0370   0.02645   0.02026  -0.0016   0.1382   0.8156
  11.250   1.0367   0.02822   0.02201   0.0001   0.1248   0.8259
  11.500   1.0372   0.02997   0.02376   0.0016   0.1128   0.8373
  11.750   1.0383   0.03169   0.02550   0.0031   0.1024   0.8496
  12.000   1.0405   0.03340   0.02724   0.0044   0.0937   0.8640
  12.250   1.0419   0.03514   0.02903   0.0058   0.0858   0.8823
  12.500   1.0426   0.03687   0.03083   0.0073   0.0786   0.9117
  12.750   1.0572   0.03893   0.03296   0.0054   0.0703   1.0000
  13.000   1.0640   0.04082   0.03482   0.0055   0.0647   1.0000
  13.250   1.0704   0.04277   0.03676   0.0057   0.0600   1.0000
  13.500   1.0752   0.04487   0.03884   0.0059   0.0559   1.0000
  13.750   1.0827   0.04678   0.04076   0.0059   0.0526   1.0000
  14.000   1.0874   0.04895   0.04291   0.0060   0.0499   1.0000
  14.250   1.0949   0.05092   0.04492   0.0060   0.0476   1.0000
  14.500   1.1003   0.05310   0.04709   0.0059   0.0453   1.0000
  14.750   1.1060   0.05531   0.04934   0.0058   0.0438   1.0000
  15.000   1.1138   0.05732   0.05139   0.0057   0.0420   1.0000
  15.250   1.1191   0.05961   0.05369   0.0055   0.0406   1.0000
  15.500   1.1213   0.06229   0.05637   0.0052   0.0393   1.0000
  15.750   1.1297   0.06433   0.05847   0.0049   0.0379   1.0000
  16.000   1.1357   0.06668   0.06087   0.0045   0.0370   1.0000
  16.250   1.1404   0.06918   0.06339   0.0041   0.0359   1.0000
  16.500   1.1409   0.07218   0.06639   0.0036   0.0348   1.0000
  16.750   1.1482   0.07447   0.06876   0.0031   0.0340   1.0000
  17.000   1.1546   0.07688   0.07123   0.0025   0.0331   1.0000
  17.250   1.1596   0.07952   0.07392   0.0018   0.0323   1.0000
  17.500   1.1638   0.08224   0.07667   0.0011   0.0316   1.0000
  17.750   1.1662   0.08516   0.07960   0.0003   0.0309   1.0000
  18.000   1.1695   0.08806   0.08254  -0.0005   0.0302   1.0000
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