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NACA 23021 (naca23021-il) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: NACA 23021 (naca23021-il)
Reynolds number: 200,000
Max Cl/Cd: 49.09 at α=7.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-naca23021-il-200000.txt
Download as CSV file: xf-naca23021-il-200000.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 =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.0742   0.09308   0.08699  -0.0569   1.0000   0.0680
 -19.500  -1.1017   0.08621   0.07986  -0.0602   1.0000   0.0685
 -19.250  -1.1250   0.08024   0.07362  -0.0627   1.0000   0.0690
 -19.000  -1.1459   0.07493   0.06803  -0.0647   1.0000   0.0695
 -18.750  -1.1603   0.07056   0.06344  -0.0659   1.0000   0.0700
 -18.500  -1.1352   0.07021   0.06323  -0.0650   1.0000   0.0711
 -18.250  -1.1275   0.06824   0.06125  -0.0651   1.0000   0.0720
 -18.000  -1.1256   0.06567   0.05860  -0.0655   1.0000   0.0729
 -17.750  -1.1256   0.06295   0.05576  -0.0657   1.0000   0.0738
 -17.500  -1.1263   0.06025   0.05291  -0.0659   1.0000   0.0748
 -17.250  -1.1290   0.05744   0.04992  -0.0660   1.0000   0.0757
 -17.000  -1.1341   0.05461   0.04686  -0.0659   1.0000   0.0765
 -16.750  -1.1086   0.05406   0.04648  -0.0652   1.0000   0.0779
 -16.500  -1.0967   0.05266   0.04509  -0.0648   1.0000   0.0791
 -16.250  -1.0883   0.05097   0.04335  -0.0645   1.0000   0.0803
 -16.000  -1.0820   0.04912   0.04140  -0.0640   1.0000   0.0816
 -15.750  -1.0777   0.04719   0.03931  -0.0635   1.0000   0.0829
 -15.500  -1.0671   0.04567   0.03774  -0.0628   1.0000   0.0843
 -15.250  -1.0505   0.04466   0.03682  -0.0622   1.0000   0.0858
 -15.000  -1.0390   0.04336   0.03551  -0.0615   1.0000   0.0874
 -14.750  -1.0292   0.04194   0.03403  -0.0607   1.0000   0.0891
 -14.500  -1.0211   0.04045   0.03241  -0.0598   1.0000   0.0908
 -14.250  -1.0068   0.03930   0.03129  -0.0589   1.0000   0.0927
 -14.000  -0.9939   0.03818   0.03022  -0.0580   1.0000   0.0947
 -13.750  -0.9834   0.03696   0.02898  -0.0570   1.0000   0.0969
 -13.500  -0.9743   0.03571   0.02763  -0.0558   1.0000   0.0993
 -13.250  -0.9615   0.03459   0.02658  -0.0546   1.0000   0.1018
 -13.000  -0.9511   0.03348   0.02551  -0.0532   1.0000   0.1044
 -12.750  -0.9423   0.03237   0.02436  -0.0517   1.0000   0.1075
 -12.500  -0.9339   0.03125   0.02325  -0.0499   1.0000   0.1108
 -12.250  -0.9280   0.03014   0.02221  -0.0478   1.0000   0.1142
 -12.000  -0.9230   0.02916   0.02119  -0.0453   1.0000   0.1184
 -11.750  -0.9218   0.02807   0.02018  -0.0422   1.0000   0.1224
 -11.500  -0.9224   0.02714   0.01928  -0.0387   1.0000   0.1270
 -11.250  -0.9253   0.02628   0.01843  -0.0346   1.0000   0.1321
 -11.000  -0.9339   0.02545   0.01768  -0.0296   1.0000   0.1368
 -10.750  -0.9414   0.02489   0.01708  -0.0243   1.0000   0.1425
 -10.500  -0.9580   0.02424   0.01653  -0.0176   1.0000   0.1468
 -10.250  -0.9736   0.02383   0.01612  -0.0108   1.0000   0.1521
 -10.000  -0.9930   0.02350   0.01580  -0.0032   1.0000   0.1566
  -9.750  -1.0072   0.02309   0.01543   0.0035   0.9997   0.1625
  -9.500  -0.9761   0.02223   0.01468   0.0018   0.9942   0.1806
  -9.250  -0.9467   0.02137   0.01400   0.0004   0.9884   0.2017
  -9.000  -0.9156   0.02065   0.01341  -0.0011   0.9816   0.2281
  -8.750  -0.8799   0.02004   0.01296  -0.0033   0.9765   0.2573
  -8.500  -0.8501   0.01958   0.01255  -0.0041   0.9678   0.2809
  -8.250  -0.8099   0.01913   0.01217  -0.0069   0.9629   0.3031
  -8.000  -0.7796   0.01878   0.01183  -0.0075   0.9539   0.3204
  -7.750  -0.7394   0.01840   0.01145  -0.0100   0.9483   0.3379
  -7.500  -0.6941   0.01799   0.01107  -0.0134   0.9451   0.3548
  -7.250  -0.6675   0.01765   0.01081  -0.0131   0.9345   0.3673
  -7.000  -0.6275   0.01727   0.01045  -0.0154   0.9297   0.3827
  -6.750  -0.5936   0.01699   0.01012  -0.0164   0.9231   0.3972
  -6.500  -0.5651   0.01667   0.00991  -0.0162   0.9135   0.4096
  -6.250  -0.5290   0.01631   0.00956  -0.0175   0.9080   0.4235
  -6.000  -0.5059   0.01613   0.00937  -0.0162   0.8963   0.4358
  -5.750  -0.4736   0.01577   0.00907  -0.0166   0.8888   0.4474
  -5.500  -0.4491   0.01559   0.00882  -0.0156   0.8778   0.4590
  -5.250  -0.4196   0.01527   0.00858  -0.0154   0.8684   0.4697
  -5.000  -0.3949   0.01509   0.00835  -0.0144   0.8572   0.4825
  -4.750  -0.3677   0.01485   0.00817  -0.0137   0.8464   0.4950
  -4.500  -0.3425   0.01467   0.00798  -0.0128   0.8348   0.5076
  -4.250  -0.3161   0.01448   0.00779  -0.0120   0.8234   0.5208
  -4.000  -0.2908   0.01432   0.00766  -0.0111   0.8105   0.5332
  -3.750  -0.2648   0.01419   0.00744  -0.0102   0.7992   0.5477
  -3.500  -0.2396   0.01405   0.00739  -0.0092   0.7848   0.5602
  -3.250  -0.2132   0.01391   0.00719  -0.0085   0.7719   0.5735
  -3.000  -0.1875   0.01380   0.00708  -0.0075   0.7571   0.5859
  -2.750  -0.1620   0.01370   0.00698  -0.0067   0.7423   0.5981
  -2.500  -0.1352   0.01364   0.00684  -0.0060   0.7293   0.6111
  -2.250  -0.1098   0.01356   0.00680  -0.0052   0.7140   0.6229
  -2.000  -0.0846   0.01354   0.00672  -0.0043   0.7001   0.6361
  -1.500  -0.0333   0.01348   0.00661  -0.0027   0.6711   0.6609
  -1.250  -0.0057   0.01347   0.00662  -0.0022   0.6573   0.6723
  -1.000   0.0193   0.01346   0.00655  -0.0013   0.6427   0.6853
  -0.750   0.0457   0.01347   0.00660  -0.0007   0.6280   0.6968
  -0.500   0.0717   0.01350   0.00655   0.0000   0.6145   0.7098
  -0.250   0.0972   0.01353   0.00661   0.0008   0.5996   0.7225
   0.000   0.1232   0.01358   0.00665   0.0015   0.5858   0.7350
   0.250   0.1488   0.01366   0.00666   0.0023   0.5726   0.7483
   0.500   0.1749   0.01372   0.00678   0.0030   0.5581   0.7601
   0.750   0.1991   0.01383   0.00681   0.0040   0.5455   0.7747
   1.000   0.2265   0.01396   0.00696   0.0045   0.5318   0.7862
   1.250   0.2511   0.01407   0.00707   0.0054   0.5185   0.7999
   1.500   0.2777   0.01428   0.00720   0.0060   0.5057   0.8120
   1.750   0.3026   0.01441   0.00737   0.0070   0.4915   0.8246
   2.000   0.3271   0.01462   0.00753   0.0080   0.4782   0.8381
   2.250   0.3538   0.01488   0.00773   0.0086   0.4643   0.8493
   2.500   0.3757   0.01506   0.00793   0.0101   0.4506   0.8644
   2.750   0.4059   0.01545   0.00826   0.0101   0.4371   0.8737
   3.000   0.4286   0.01569   0.00845   0.0115   0.4245   0.8871
   3.250   0.4614   0.01607   0.00882   0.0108   0.4114   0.8946
   3.500   0.4843   0.01636   0.00900   0.0120   0.4003   0.9071
   3.750   0.5213   0.01674   0.00939   0.0104   0.3868   0.9125
   4.000   0.5520   0.01711   0.00968   0.0099   0.3752   0.9214
   4.250   0.5846   0.01742   0.00995   0.0090   0.3627   0.9290
   4.500   0.6257   0.01782   0.01032   0.0063   0.3505   0.9335
   4.750   0.6513   0.01813   0.01055   0.0066   0.3408   0.9445
   5.000   0.6979   0.01851   0.01092   0.0027   0.3291   0.9471
   5.250   0.7399   0.01895   0.01122  -0.0004   0.3189   0.9513
   5.500   0.7726   0.01920   0.01154  -0.0017   0.3090   0.9596
   5.750   0.8115   0.01961   0.01182  -0.0043   0.2995   0.9646
   6.000   0.8525   0.01989   0.01215  -0.0073   0.2895   0.9698
   6.250   0.8841   0.02030   0.01246  -0.0086   0.2813   0.9776
   6.500   0.9267   0.02053   0.01275  -0.0120   0.2719   0.9816
   6.750   0.9638   0.02091   0.01304  -0.0145   0.2632   0.9874
   7.000   1.0017   0.02115   0.01335  -0.0171   0.2545   0.9927
   7.250   1.0400   0.02151   0.01363  -0.0200   0.2462   0.9975
   7.500   1.0648   0.02169   0.01389  -0.0201   0.2382   1.0000
   7.750   1.0665   0.02192   0.01409  -0.0160   0.2328   1.0000
   8.000   1.0667   0.02213   0.01432  -0.0116   0.2273   1.0000
   8.250   1.0636   0.02228   0.01452  -0.0064   0.2218   1.0000
   8.500   1.0521   0.02246   0.01468   0.0002   0.2176   1.0000
   8.750   1.0429   0.02271   0.01492   0.0063   0.2132   1.0000
   9.000   1.0401   0.02295   0.01522   0.0112   0.2072   1.0000
   9.250   1.0353   0.02335   0.01559   0.0162   0.2011   1.0000
   9.500   1.0361   0.02378   0.01605   0.0201   0.1934   1.0000
   9.750   1.0342   0.02442   0.01665   0.0242   0.1851   1.0000
  10.000   1.0361   0.02512   0.01734   0.0275   0.1738   1.0000
  10.250   1.0364   0.02608   0.01825   0.0306   0.1607   1.0000
  10.500   1.0361   0.02730   0.01941   0.0333   0.1455   1.0000
  10.750   1.0346   0.02882   0.02085   0.0357   0.1303   1.0000
  11.000   1.0326   0.03058   0.02253   0.0378   0.1189   1.0000
  11.250   1.0319   0.03243   0.02434   0.0394   0.1112   1.0000
  11.500   1.0309   0.03445   0.02634   0.0408   0.1062   1.0000
  11.750   1.0325   0.03641   0.02831   0.0417   0.1024   1.0000
  12.000   1.0320   0.03864   0.03055   0.0425   0.0997   1.0000
  12.250   1.0319   0.04094   0.03287   0.0431   0.0978   1.0000
  12.500   1.0343   0.04311   0.03510   0.0435   0.0960   1.0000
  12.750   1.0360   0.04542   0.03746   0.0437   0.0944   1.0000
  13.000   1.0370   0.04787   0.03994   0.0439   0.0932   1.0000
  13.250   1.0375   0.05041   0.04250   0.0439   0.0921   1.0000
  13.500   1.0384   0.05294   0.04503   0.0439   0.0911   1.0000
  13.750   1.0418   0.05525   0.04735   0.0439   0.0903   1.0000
  14.000   1.0469   0.05742   0.04958   0.0438   0.0895   1.0000
  14.250   1.0527   0.05954   0.05174   0.0437   0.0888   1.0000
  14.500   1.0588   0.06164   0.05388   0.0436   0.0881   1.0000
  14.750   1.0656   0.06366   0.05593   0.0435   0.0874   1.0000
  15.000   1.0733   0.06559   0.05788   0.0434   0.0868   1.0000
  15.250   1.0813   0.06747   0.05978   0.0433   0.0862   1.0000
  15.500   1.0904   0.06922   0.06155   0.0432   0.0857   1.0000
  15.750   1.1004   0.07086   0.06320   0.0432   0.0852   1.0000
  16.000   1.1116   0.07234   0.06467   0.0432   0.0847   1.0000
  16.250   1.1244   0.07361   0.06592   0.0434   0.0843   1.0000
  16.500   1.1397   0.07454   0.06682   0.0437   0.0839   1.0000
  16.750   1.1571   0.07518   0.06744   0.0442   0.0834   1.0000
  17.000   1.1664   0.07701   0.06932   0.0440   0.0832   1.0000
  17.250   1.1730   0.07921   0.07161   0.0436   0.0829   1.0000
  17.500   1.1786   0.08156   0.07406   0.0431   0.0827   1.0000
  17.750   1.1829   0.08410   0.07671   0.0424   0.0824   1.0000
  18.000   1.1862   0.08679   0.07950   0.0416   0.0822   1.0000
  18.250   1.1880   0.08969   0.08252   0.0407   0.0820   1.0000
  18.500   1.1881   0.09286   0.08581   0.0397   0.0818   1.0000
  18.750   1.1867   0.09628   0.08936   0.0384   0.0817   1.0000
  19.000   1.1818   0.10025   0.09347   0.0369   0.0817   1.0000
  19.250   1.1731   0.10483   0.09823   0.0349   0.0817   1.0000
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