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NACA 23021 (naca23021-il) Xfoil prediction polar at RE=200,000 Ncrit=5


Details Polar file
Airfoil: NACA 23021 (naca23021-il)
Reynolds number: 200,000
Max Cl/Cd: 42.71 at α=8.25°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-naca23021-il-200000-n5.txt
Download as CSV file: xf-naca23021-il-200000-n5.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 =     0.200 e 6     Ncrit =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.0462   0.09710   0.09018  -0.0471   1.0000   0.0524
 -19.500  -1.0425   0.09441   0.08746  -0.0480   1.0000   0.0530
 -19.250  -1.0383   0.09180   0.08485  -0.0488   1.0000   0.0536
 -19.000  -1.0352   0.08900   0.08202  -0.0497   1.0000   0.0543
 -18.750  -1.0331   0.08604   0.07900  -0.0506   1.0000   0.0550
 -18.500  -1.0310   0.08312   0.07602  -0.0515   1.0000   0.0557
 -18.250  -1.0289   0.08019   0.07301  -0.0524   1.0000   0.0565
 -18.000  -1.0262   0.07739   0.07011  -0.0531   1.0000   0.0572
 -17.750  -1.0234   0.07459   0.06722  -0.0538   1.0000   0.0580
 -17.500  -1.0192   0.07216   0.06480  -0.0542   1.0000   0.0587
 -17.250  -1.0162   0.06953   0.06214  -0.0548   1.0000   0.0595
 -17.000  -1.0131   0.06693   0.05951  -0.0552   1.0000   0.0603
 -16.750  -1.0097   0.06436   0.05688  -0.0557   1.0000   0.0612
 -16.500  -1.0058   0.06190   0.05436  -0.0560   1.0000   0.0622
 -16.250  -1.0016   0.05950   0.05188  -0.0563   1.0000   0.0631
 -16.000  -0.9975   0.05716   0.04949  -0.0565   1.0000   0.0640
 -15.750  -0.9951   0.05467   0.04700  -0.0566   1.0000   0.0649
 -15.500  -0.9921   0.05228   0.04457  -0.0568   1.0000   0.0659
 -15.250  -0.9881   0.05003   0.04228  -0.0568   1.0000   0.0670
 -15.000  -0.9835   0.04789   0.04008  -0.0567   1.0000   0.0683
 -14.750  -0.9780   0.04589   0.03801  -0.0565   1.0000   0.0696
 -14.500  -0.9750   0.04373   0.03584  -0.0562   1.0000   0.0708
 -14.250  -0.9712   0.04169   0.03378  -0.0558   1.0000   0.0722
 -14.000  -0.9662   0.03984   0.03190  -0.0552   1.0000   0.0737
 -13.750  -0.9602   0.03814   0.03014  -0.0545   1.0000   0.0754
 -13.500  -0.9547   0.03647   0.02844  -0.0537   1.0000   0.0771
 -13.250  -0.9499   0.03483   0.02680  -0.0527   1.0000   0.0791
 -13.000  -0.9437   0.03340   0.02533  -0.0515   1.0000   0.0814
 -12.750  -0.9369   0.03210   0.02400  -0.0502   1.0000   0.0840
 -12.500  -0.9326   0.03077   0.02268  -0.0485   1.0000   0.0866
 -12.250  -0.9271   0.02966   0.02154  -0.0465   1.0000   0.0897
 -12.000  -0.9233   0.02863   0.02049  -0.0442   1.0000   0.0927
 -11.750  -0.9218   0.02766   0.01952  -0.0413   1.0000   0.0960
 -11.500  -0.9192   0.02690   0.01873  -0.0382   1.0000   0.0997
 -11.250  -0.9223   0.02609   0.01794  -0.0342   1.0000   0.1029
 -11.000  -0.9263   0.02546   0.01730  -0.0298   1.0000   0.1064
 -10.750  -0.9266   0.02489   0.01671  -0.0258   0.9993   0.1102
 -10.500  -0.9022   0.02394   0.01577  -0.0267   0.9941   0.1169
 -10.250  -0.8775   0.02307   0.01492  -0.0274   0.9888   0.1240
 -10.000  -0.8526   0.02228   0.01415  -0.0279   0.9825   0.1321
  -9.500  -0.8035   0.02073   0.01269  -0.0287   0.9694   0.1532
  -9.000  -0.7577   0.01931   0.01143  -0.0282   0.9536   0.1837
  -8.750  -0.7331   0.01863   0.01084  -0.0282   0.9462   0.2032
  -8.500  -0.7139   0.01809   0.01039  -0.0268   0.9353   0.2219
  -8.250  -0.6874   0.01756   0.00992  -0.0268   0.9274   0.2418
  -8.000  -0.6672   0.01716   0.00957  -0.0254   0.9152   0.2586
  -7.750  -0.6398   0.01673   0.00915  -0.0254   0.9064   0.2751
  -7.500  -0.6197   0.01641   0.00886  -0.0238   0.8929   0.2886
  -7.250  -0.5950   0.01607   0.00853  -0.0231   0.8825   0.3030
  -7.000  -0.5719   0.01581   0.00825  -0.0220   0.8701   0.3165
  -6.750  -0.5492   0.01550   0.00798  -0.0209   0.8587   0.3288
  -6.500  -0.5257   0.01524   0.00771  -0.0199   0.8465   0.3412
  -6.250  -0.5024   0.01501   0.00748  -0.0188   0.8343   0.3540
  -6.000  -0.4784   0.01476   0.00724  -0.0179   0.8222   0.3652
  -5.750  -0.4542   0.01459   0.00703  -0.0170   0.8091   0.3759
  -5.500  -0.4296   0.01438   0.00681  -0.0161   0.7971   0.3857
  -5.250  -0.4052   0.01424   0.00663  -0.0152   0.7837   0.3972
  -5.000  -0.3814   0.01405   0.00646  -0.0142   0.7712   0.4098
  -4.750  -0.3569   0.01392   0.00630  -0.0133   0.7579   0.4225
  -4.500  -0.3324   0.01379   0.00617  -0.0124   0.7453   0.4352
  -4.250  -0.3077   0.01367   0.00603  -0.0116   0.7325   0.4474
  -4.000  -0.2828   0.01359   0.00591  -0.0107   0.7193   0.4606
  -3.750  -0.2582   0.01349   0.00580  -0.0098   0.7067   0.4738
  -3.500  -0.2334   0.01341   0.00572  -0.0090   0.6928   0.4862
  -3.250  -0.2084   0.01335   0.00562  -0.0082   0.6786   0.4984
  -3.000  -0.1834   0.01330   0.00552  -0.0074   0.6633   0.5091
  -2.750  -0.1583   0.01325   0.00545  -0.0066   0.6481   0.5204
  -2.500  -0.1330   0.01321   0.00538  -0.0059   0.6342   0.5311
  -2.250  -0.1078   0.01318   0.00532  -0.0052   0.6199   0.5426
  -2.000  -0.0823   0.01315   0.00527  -0.0045   0.6062   0.5530
  -1.750  -0.0572   0.01315   0.00523  -0.0037   0.5926   0.5644
  -1.500  -0.0318   0.01314   0.00520  -0.0030   0.5784   0.5753
  -1.250  -0.0065   0.01314   0.00519  -0.0023   0.5650   0.5868
  -1.000   0.0187   0.01316   0.00517  -0.0016   0.5513   0.5973
  -0.750   0.0441   0.01317   0.00518  -0.0009   0.5379   0.6087
  -0.500   0.0692   0.01321   0.00518  -0.0002   0.5249   0.6200
  -0.250   0.0943   0.01324   0.00521   0.0005   0.5115   0.6323
   0.000   0.1196   0.01329   0.00525   0.0012   0.4993   0.6436
   0.250   0.1445   0.01335   0.00529   0.0019   0.4867   0.6555
   0.500   0.1699   0.01340   0.00535   0.0026   0.4747   0.6671
   1.000   0.2199   0.01356   0.00551   0.0040   0.4518   0.6927
   1.250   0.2441   0.01368   0.00558   0.0048   0.4406   0.7061
   1.500   0.2695   0.01376   0.00571   0.0055   0.4285   0.7184
   1.750   0.2937   0.01389   0.00581   0.0063   0.4172   0.7319
   2.000   0.3182   0.01401   0.00595   0.0071   0.4044   0.7461
   2.250   0.3425   0.01415   0.00611   0.0080   0.3919   0.7611
   2.500   0.3656   0.01433   0.00626   0.0090   0.3792   0.7773
   2.750   0.3900   0.01448   0.00644   0.0098   0.3665   0.7935
   3.000   0.4141   0.01468   0.00664   0.0107   0.3549   0.8074
   3.250   0.4378   0.01487   0.00682   0.0116   0.3434   0.8214
   3.500   0.4625   0.01509   0.00705   0.0123   0.3330   0.8337
   3.750   0.4861   0.01532   0.00725   0.0132   0.3224   0.8459
   4.000   0.5103   0.01556   0.00749   0.0139   0.3120   0.8581
   4.250   0.5336   0.01585   0.00774   0.0148   0.3012   0.8693
   4.500   0.5578   0.01611   0.00799   0.0155   0.2910   0.8808
   5.000   0.6066   0.01672   0.00856   0.0167   0.2733   0.9018
   5.250   0.6315   0.01708   0.00888   0.0171   0.2653   0.9110
   5.500   0.6577   0.01739   0.00920   0.0173   0.2579   0.9204
   5.750   0.6829   0.01775   0.00953   0.0176   0.2500   0.9294
   6.000   0.7107   0.01813   0.00990   0.0173   0.2421   0.9373
   6.250   0.7350   0.01850   0.01025   0.0176   0.2343   0.9464
   6.500   0.7650   0.01893   0.01066   0.0168   0.2267   0.9527
   6.750   0.7882   0.01932   0.01104   0.0172   0.2189   0.9621
   7.000   0.8200   0.01980   0.01149   0.0158   0.2106   0.9669
   7.250   0.8481   0.02027   0.01194   0.0151   0.2016   0.9736
   7.500   0.8770   0.02076   0.01241   0.0141   0.1923   0.9794
   7.750   0.9072   0.02130   0.01293   0.0127   0.1834   0.9846
   8.000   0.9342   0.02188   0.01349   0.0119   0.1734   0.9909
   8.250   0.9630   0.02255   0.01410   0.0105   0.1605   0.9955
   8.500   0.9867   0.02329   0.01478   0.0099   0.1473   1.0000
   8.750   0.9798   0.02379   0.01524   0.0151   0.1376   1.0000
   9.000   0.9747   0.02442   0.01582   0.0198   0.1271   1.0000
   9.250   0.9711   0.02520   0.01653   0.0240   0.1157   1.0000
   9.500   0.9681   0.02616   0.01742   0.0278   0.1027   1.0000
   9.750   0.9653   0.02733   0.01851   0.0311   0.0904   1.0000
  10.000   0.9650   0.02859   0.01972   0.0338   0.0825   1.0000
  10.250   0.9672   0.02991   0.02102   0.0359   0.0781   1.0000
  10.500   0.9709   0.03129   0.02239   0.0376   0.0754   1.0000
  10.750   0.9754   0.03274   0.02387   0.0390   0.0736   1.0000
  11.000   0.9797   0.03434   0.02550   0.0401   0.0721   1.0000
  11.250   0.9831   0.03611   0.02730   0.0411   0.0708   1.0000
  11.500   0.9866   0.03798   0.02922   0.0418   0.0699   1.0000
  11.750   0.9906   0.03991   0.03122   0.0423   0.0691   1.0000
  12.000   0.9936   0.04201   0.03338   0.0427   0.0684   1.0000
  12.250   0.9956   0.04430   0.03574   0.0429   0.0677   1.0000
  12.500   0.9965   0.04680   0.03831   0.0429   0.0671   1.0000
  12.750   0.9964   0.04949   0.04108   0.0427   0.0666   1.0000
  13.000   0.9954   0.05238   0.04405   0.0424   0.0662   1.0000
  13.250   0.9935   0.05547   0.04721   0.0420   0.0658   1.0000
  13.500   0.9909   0.05872   0.05053   0.0414   0.0654   1.0000
  13.750   0.9878   0.06210   0.05397   0.0407   0.0651   1.0000
  14.000   0.9844   0.06556   0.05750   0.0399   0.0648   1.0000
  14.250   0.9814   0.06903   0.06103   0.0390   0.0645   1.0000
  14.500   0.9796   0.07237   0.06441   0.0382   0.0642   1.0000
  14.750   0.9799   0.07551   0.06762   0.0373   0.0640   1.0000
  15.000   0.9810   0.07856   0.07073   0.0365   0.0637   1.0000
  15.250   0.9826   0.08155   0.07378   0.0356   0.0635   1.0000
  15.500   0.9849   0.08446   0.07674   0.0348   0.0633   1.0000
  15.750   0.9876   0.08731   0.07964   0.0340   0.0630   1.0000
  16.000   0.9916   0.08998   0.08236   0.0332   0.0628   1.0000
  16.250   0.9957   0.09265   0.08507   0.0324   0.0625   1.0000
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