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NACA 23021 (naca23021-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: NACA 23021 (naca23021-il)
Reynolds number: 500,000
Max Cl/Cd: 56.41 at α=7.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-naca23021-il-500000.txt
Download as CSV file: xf-naca23021-il-500000.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 =     0.500 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.1602   0.08263   0.07712  -0.0502   1.0000   0.0492
 -19.500  -1.1570   0.07991   0.07437  -0.0510   1.0000   0.0498
 -19.250  -1.1541   0.07713   0.07154  -0.0518   1.0000   0.0504
 -19.000  -1.1510   0.07438   0.06872  -0.0526   1.0000   0.0510
 -18.750  -1.1483   0.07159   0.06585  -0.0533   1.0000   0.0516
 -18.500  -1.1453   0.06885   0.06302  -0.0540   1.0000   0.0521
 -18.250  -1.1421   0.06612   0.06019  -0.0547   1.0000   0.0525
 -18.000  -1.1358   0.06430   0.05841  -0.0544   1.0000   0.0533
 -17.750  -1.1320   0.06189   0.05600  -0.0546   1.0000   0.0540
 -17.500  -1.1277   0.05950   0.05357  -0.0549   1.0000   0.0547
 -17.250  -1.1236   0.05709   0.05113  -0.0553   1.0000   0.0553
 -17.000  -1.1187   0.05478   0.04877  -0.0555   1.0000   0.0561
 -16.750  -1.1138   0.05247   0.04639  -0.0557   1.0000   0.0568
 -16.500  -1.1078   0.05032   0.04416  -0.0558   1.0000   0.0574
 -16.250  -1.1023   0.04816   0.04193  -0.0559   1.0000   0.0581
 -16.000  -1.1016   0.04571   0.03949  -0.0556   1.0000   0.0589
 -15.750  -1.0984   0.04345   0.03721  -0.0554   1.0000   0.0597
 -15.500  -1.0934   0.04136   0.03509  -0.0553   1.0000   0.0606
 -15.250  -1.0877   0.03939   0.03308  -0.0550   1.0000   0.0615
 -15.000  -1.0811   0.03756   0.03119  -0.0546   1.0000   0.0624
 -14.750  -1.0731   0.03589   0.02945  -0.0541   1.0000   0.0632
 -14.500  -1.0681   0.03404   0.02756  -0.0534   1.0000   0.0641
 -14.250  -1.0658   0.03207   0.02557  -0.0525   1.0000   0.0652
 -14.000  -1.0600   0.03042   0.02391  -0.0516   1.0000   0.0664
 -13.750  -1.0522   0.02902   0.02247  -0.0505   1.0000   0.0676
 -13.500  -1.0434   0.02777   0.02117  -0.0493   1.0000   0.0690
 -13.250  -1.0358   0.02655   0.01991  -0.0479   1.0000   0.0703
 -13.000  -1.0323   0.02521   0.01858  -0.0458   1.0000   0.0717
 -12.750  -1.0272   0.02417   0.01753  -0.0435   1.0000   0.0733
 -12.500  -1.0225   0.02332   0.01666  -0.0408   1.0000   0.0750
 -12.250  -1.0196   0.02259   0.01590  -0.0376   1.0000   0.0768
 -12.000  -1.0238   0.02183   0.01516  -0.0332   1.0000   0.0786
 -11.750  -1.0298   0.02129   0.01461  -0.0281   1.0000   0.0805
 -11.500  -1.0384   0.02089   0.01419  -0.0224   1.0000   0.0824
 -11.250  -1.0247   0.02021   0.01353  -0.0209   0.9982   0.0861
 -11.000  -0.9947   0.01953   0.01286  -0.0223   0.9952   0.0921
 -10.750  -0.9644   0.01883   0.01220  -0.0236   0.9925   0.0995
 -10.500  -0.9363   0.01810   0.01151  -0.0246   0.9890   0.1078
 -10.250  -0.9084   0.01739   0.01086  -0.0253   0.9843   0.1166
 -10.000  -0.8772   0.01671   0.01023  -0.0267   0.9809   0.1261
  -9.750  -0.8432   0.01604   0.00961  -0.0285   0.9784   0.1365
  -9.500  -0.8147   0.01539   0.00904  -0.0292   0.9731   0.1480
  -9.250  -0.7867   0.01471   0.00845  -0.0296   0.9668   0.1638
  -9.000  -0.7570   0.01398   0.00785  -0.0304   0.9617   0.1856
  -8.750  -0.7408   0.01344   0.00742  -0.0283   0.9500   0.2068
  -8.500  -0.7197   0.01296   0.00703  -0.0270   0.9413   0.2283
  -8.250  -0.7005   0.01255   0.00670  -0.0252   0.9306   0.2476
  -8.000  -0.6793   0.01222   0.00642  -0.0238   0.9205   0.2650
  -7.750  -0.6567   0.01196   0.00617  -0.0225   0.9099   0.2799
  -7.500  -0.6349   0.01171   0.00595  -0.0212   0.8989   0.2930
  -7.250  -0.6114   0.01148   0.00571  -0.0201   0.8878   0.3039
  -7.000  -0.5877   0.01131   0.00553  -0.0190   0.8756   0.3147
  -6.750  -0.5640   0.01109   0.00531  -0.0180   0.8645   0.3253
  -6.500  -0.5394   0.01095   0.00515  -0.0171   0.8515   0.3358
  -6.250  -0.5156   0.01075   0.00495  -0.0161   0.8394   0.3462
  -6.000  -0.4902   0.01063   0.00479  -0.0154   0.8260   0.3563
  -5.750  -0.4661   0.01045   0.00463  -0.0145   0.8136   0.3667
  -5.500  -0.4403   0.01036   0.00448  -0.0138   0.8004   0.3770
  -5.250  -0.4162   0.01018   0.00434  -0.0129   0.7870   0.3891
  -5.000  -0.3906   0.01010   0.00421  -0.0122   0.7743   0.4005
  -4.750  -0.3657   0.00997   0.00410  -0.0114   0.7609   0.4132
  -4.500  -0.3407   0.00987   0.00399  -0.0107   0.7474   0.4263
  -4.250  -0.3152   0.00982   0.00389  -0.0099   0.7322   0.4398
  -4.000  -0.2903   0.00971   0.00381  -0.0091   0.7176   0.4530
  -3.750  -0.2647   0.00966   0.00373  -0.0085   0.7043   0.4654
  -3.500  -0.2389   0.00961   0.00366  -0.0078   0.6907   0.4787
  -3.250  -0.2134   0.00954   0.00360  -0.0072   0.6779   0.4913
  -2.750  -0.1615   0.00947   0.00350  -0.0060   0.6511   0.5158
  -2.500  -0.1354   0.00948   0.00345  -0.0054   0.6376   0.5272
  -2.250  -0.1096   0.00942   0.00342  -0.0048   0.6238   0.5398
  -2.000  -0.0835   0.00942   0.00339  -0.0042   0.6102   0.5519
  -1.750  -0.0580   0.00942   0.00337  -0.0036   0.5957   0.5644
  -1.500  -0.0315   0.00940   0.00335  -0.0031   0.5819   0.5753
  -1.250  -0.0057   0.00942   0.00335  -0.0025   0.5679   0.5869
  -1.000   0.0202   0.00944   0.00334  -0.0019   0.5532   0.5977
  -0.750   0.0464   0.00945   0.00335  -0.0014   0.5393   0.6092
  -0.500   0.0721   0.00950   0.00335  -0.0008   0.5251   0.6203
  -0.250   0.0977   0.00953   0.00337  -0.0002   0.5099   0.6325
   0.000   0.1237   0.00956   0.00340   0.0003   0.4955   0.6440
   0.250   0.1491   0.00963   0.00343   0.0009   0.4818   0.6562
   0.500   0.1749   0.00967   0.00347   0.0015   0.4680   0.6680
   0.750   0.2007   0.00974   0.00352   0.0020   0.4550   0.6812
   1.250   0.2520   0.00987   0.00364   0.0032   0.4303   0.7076
   1.500   0.2769   0.00995   0.00373   0.0039   0.4182   0.7211
   1.750   0.3029   0.01001   0.00380   0.0044   0.4063   0.7342
   2.000   0.3281   0.01011   0.00390   0.0050   0.3947   0.7484
   2.250   0.3532   0.01020   0.00400   0.0057   0.3824   0.7623
   2.500   0.3787   0.01030   0.00410   0.0062   0.3714   0.7768
   2.750   0.4032   0.01044   0.00423   0.0070   0.3595   0.7913
   3.000   0.4288   0.01053   0.00436   0.0076   0.3479   0.8046
   3.250   0.4529   0.01071   0.00449   0.0084   0.3358   0.8189
   3.500   0.4775   0.01085   0.00466   0.0092   0.3240   0.8336
   3.750   0.5016   0.01102   0.00484   0.0100   0.3130   0.8488
   4.000   0.5243   0.01124   0.00501   0.0111   0.3017   0.8641
   4.250   0.5490   0.01141   0.00522   0.0119   0.2920   0.8762
   4.750   0.5958   0.01185   0.00563   0.0138   0.2737   0.8991
   5.000   0.6176   0.01212   0.00586   0.0150   0.2648   0.9099
   5.250   0.6416   0.01233   0.00608   0.0158   0.2571   0.9202
   5.500   0.6636   0.01263   0.00634   0.0170   0.2483   0.9299
   5.750   0.6880   0.01287   0.00659   0.0177   0.2410   0.9389
   6.000   0.7112   0.01318   0.00686   0.0185   0.2326   0.9475
   6.250   0.7389   0.01349   0.00716   0.0185   0.2245   0.9545
   6.500   0.7618   0.01385   0.00746   0.0192   0.2154   0.9630
   6.750   0.7956   0.01424   0.00781   0.0177   0.2040   0.9667
   7.000   0.8270   0.01468   0.00819   0.0166   0.1917   0.9716
   7.250   0.8546   0.01515   0.00858   0.0161   0.1779   0.9777
   7.500   0.8887   0.01581   0.00909   0.0141   0.1578   0.9798
   7.750   0.9183   0.01659   0.00970   0.0127   0.1320   0.9831
   8.000   0.9376   0.01783   0.01066   0.0127   0.0930   0.9888
   8.250   0.9605   0.01890   0.01158   0.0121   0.0757   0.9928
   8.500   0.9900   0.01966   0.01231   0.0106   0.0720   0.9957
   8.750   1.0192   0.02041   0.01305   0.0091   0.0698   0.9987
   9.000   1.0297   0.02094   0.01361   0.0112   0.0689   1.0000
   9.250   1.0216   0.02136   0.01406   0.0167   0.0684   1.0000
   9.500   1.0174   0.02188   0.01461   0.0214   0.0678   1.0000
   9.750   1.0167   0.02254   0.01529   0.0254   0.0672   1.0000
  10.000   1.0188   0.02331   0.01609   0.0286   0.0667   1.0000
  10.250   1.0225   0.02423   0.01702   0.0312   0.0661   1.0000
  10.500   1.0273   0.02530   0.01813   0.0334   0.0656   1.0000
  10.750   1.0327   0.02654   0.01940   0.0351   0.0650   1.0000
  11.000   1.0375   0.02798   0.02087   0.0366   0.0646   1.0000
  11.250   1.0432   0.02947   0.02240   0.0378   0.0642   1.0000
  11.500   1.0514   0.03089   0.02387   0.0386   0.0639   1.0000
  11.750   1.0587   0.03246   0.02549   0.0393   0.0637   1.0000
  12.000   1.0652   0.03416   0.02725   0.0398   0.0634   1.0000
  12.250   1.0710   0.03600   0.02915   0.0403   0.0631   1.0000
  12.500   1.0760   0.03798   0.03118   0.0406   0.0629   1.0000
  12.750   1.0804   0.04009   0.03335   0.0408   0.0627   1.0000
  13.000   1.0841   0.04231   0.03563   0.0409   0.0624   1.0000
  13.250   1.0873   0.04466   0.03803   0.0408   0.0622   1.0000
  13.500   1.0901   0.04711   0.04054   0.0407   0.0620   1.0000
  13.750   1.0925   0.04965   0.04314   0.0405   0.0618   1.0000
  14.000   1.0946   0.05224   0.04579   0.0402   0.0617   1.0000
  14.250   1.0970   0.05484   0.04845   0.0399   0.0615   1.0000
  14.500   1.0993   0.05750   0.05116   0.0395   0.0613   1.0000
  14.750   1.1016   0.06018   0.05389   0.0390   0.0612   1.0000
  15.000   1.1046   0.06277   0.05652   0.0386   0.0610   1.0000
  15.250   1.1072   0.06544   0.05923   0.0380   0.0608   1.0000
  15.500   1.1111   0.06796   0.06179   0.0376   0.0606   1.0000
  15.750   1.1146   0.07054   0.06441   0.0370   0.0604   1.0000
  16.000   1.1192   0.07295   0.06685   0.0365   0.0602   1.0000
  16.250   1.1245   0.07527   0.06920   0.0361   0.0600   1.0000
  16.500   1.1302   0.07756   0.07151   0.0356   0.0598   1.0000
  16.750   1.1372   0.07965   0.07363   0.0352   0.0597   1.0000
  17.000   1.1450   0.08160   0.07559   0.0348   0.0595   1.0000
  17.250   1.1537   0.08343   0.07743   0.0345   0.0594   1.0000
  17.500   1.1631   0.08512   0.07913   0.0343   0.0593   1.0000
  17.750   1.1731   0.08674   0.08077   0.0340   0.0591   1.0000
  18.000   1.1842   0.08816   0.08220   0.0339   0.0590   1.0000
  18.250   1.1961   0.08945   0.08350   0.0339   0.0589   1.0000
  18.500   1.2085   0.09067   0.08473   0.0338   0.0587   1.0000
  18.750   1.2214   0.09178   0.08585   0.0339   0.0586   1.0000
  19.000   1.2309   0.09350   0.08761   0.0335   0.0585   1.0000
  19.250   1.2385   0.09557   0.08973   0.0328   0.0585   1.0000
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