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NACA 23021 (naca23021-il) Xfoil prediction polar at RE=1,000,000 Ncrit=9


Details Polar file
Airfoil: NACA 23021 (naca23021-il)
Reynolds number: 1,000,000
Max Cl/Cd: 64.32 at α=5.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-naca23021-il-1000000.txt
Download as CSV file: xf-naca23021-il-1000000.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 =     1.000 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.2442   0.07495   0.07022  -0.0482   1.0000   0.0409
 -19.500  -1.2453   0.07168   0.06690  -0.0491   1.0000   0.0413
 -19.250  -1.2451   0.06860   0.06375  -0.0499   1.0000   0.0417
 -19.000  -1.2451   0.06549   0.06057  -0.0507   1.0000   0.0421
 -18.750  -1.2432   0.06265   0.05767  -0.0513   1.0000   0.0424
 -18.500  -1.2401   0.06000   0.05494  -0.0518   1.0000   0.0427
 -18.250  -1.2446   0.05654   0.05142  -0.0525   1.0000   0.0432
 -18.000  -1.2494   0.05310   0.04793  -0.0531   1.0000   0.0437
 -17.750  -1.2501   0.05015   0.04493  -0.0535   1.0000   0.0442
 -17.500  -1.2480   0.04757   0.04231  -0.0537   1.0000   0.0446
 -17.250  -1.2440   0.04520   0.03989  -0.0539   1.0000   0.0451
 -17.000  -1.2392   0.04295   0.03759  -0.0540   1.0000   0.0456
 -16.750  -1.2335   0.04084   0.03542  -0.0539   1.0000   0.0461
 -16.500  -1.2263   0.03893   0.03345  -0.0538   1.0000   0.0466
 -16.250  -1.2175   0.03720   0.03167  -0.0536   1.0000   0.0471
 -16.000  -1.2075   0.03560   0.03002  -0.0534   1.0000   0.0475
 -15.750  -1.2077   0.03319   0.02755  -0.0528   1.0000   0.0483
 -15.500  -1.2030   0.03130   0.02563  -0.0522   1.0000   0.0489
 -15.250  -1.1952   0.02971   0.02401  -0.0515   1.0000   0.0496
 -15.000  -1.1855   0.02833   0.02259  -0.0507   1.0000   0.0502
 -14.750  -1.1748   0.02709   0.02131  -0.0499   1.0000   0.0509
 -14.500  -1.1632   0.02596   0.02015  -0.0490   1.0000   0.0516
 -14.250  -1.1501   0.02499   0.01914  -0.0480   1.0000   0.0522
 -14.000  -1.1405   0.02387   0.01798  -0.0467   1.0000   0.0530
 -13.750  -1.1337   0.02267   0.01677  -0.0449   1.0000   0.0540
 -13.500  -1.1254   0.02173   0.01580  -0.0429   1.0000   0.0548
 -13.250  -1.1177   0.02094   0.01500  -0.0406   1.0000   0.0556
 -13.000  -1.1118   0.02029   0.01432  -0.0377   1.0000   0.0564
 -12.750  -1.1090   0.01976   0.01376  -0.0340   1.0000   0.0572
 -12.500  -1.1115   0.01935   0.01332  -0.0293   1.0000   0.0578
 -12.250  -1.0898   0.01854   0.01250  -0.0293   0.9982   0.0594
 -12.000  -1.0631   0.01781   0.01178  -0.0300   0.9960   0.0611
 -11.750  -1.0341   0.01721   0.01117  -0.0310   0.9939   0.0629
 -11.500  -1.0048   0.01658   0.01054  -0.0321   0.9922   0.0652
 -11.250  -0.9768   0.01596   0.00994  -0.0329   0.9897   0.0682
 -11.000  -0.9497   0.01536   0.00937  -0.0333   0.9859   0.0722
 -10.750  -0.9219   0.01477   0.00883  -0.0339   0.9818   0.0785
 -10.500  -0.8939   0.01419   0.00833  -0.0345   0.9776   0.0875
 -10.250  -0.8740   0.01374   0.00792  -0.0331   0.9681   0.0955
 -10.000  -0.8520   0.01333   0.00752  -0.0321   0.9591   0.1024
  -9.750  -0.8339   0.01296   0.00716  -0.0302   0.9471   0.1083
  -9.500  -0.8160   0.01261   0.00681  -0.0283   0.9353   0.1141
  -9.250  -0.7965   0.01232   0.00650  -0.0265   0.9246   0.1196
  -9.000  -0.7796   0.01200   0.00620  -0.0244   0.9125   0.1263
  -8.750  -0.7598   0.01173   0.00592  -0.0227   0.9016   0.1336
  -8.500  -0.7392   0.01141   0.00562  -0.0213   0.8898   0.1432
  -8.250  -0.7192   0.01104   0.00531  -0.0198   0.8781   0.1580
  -8.000  -0.6995   0.01065   0.00498  -0.0182   0.8653   0.1791
  -7.750  -0.6790   0.01026   0.00469  -0.0168   0.8532   0.2015
  -7.500  -0.6573   0.00995   0.00444  -0.0155   0.8405   0.2225
  -7.250  -0.6341   0.00969   0.00423  -0.0145   0.8268   0.2411
  -7.000  -0.6103   0.00947   0.00405  -0.0136   0.8135   0.2577
  -6.750  -0.5860   0.00930   0.00388  -0.0128   0.7997   0.2724
  -6.500  -0.5603   0.00915   0.00374  -0.0122   0.7868   0.2841
  -6.250  -0.5347   0.00905   0.00361  -0.0116   0.7731   0.2953
  -6.000  -0.5092   0.00891   0.00348  -0.0110   0.7592   0.3058
  -5.750  -0.4827   0.00883   0.00338  -0.0105   0.7468   0.3153
  -5.500  -0.4571   0.00872   0.00326  -0.0099   0.7335   0.3252
  -5.250  -0.4305   0.00864   0.00316  -0.0095   0.7200   0.3337
  -5.000  -0.4046   0.00858   0.00306  -0.0089   0.7047   0.3427
  -4.750  -0.3784   0.00849   0.00296  -0.0084   0.6899   0.3534
  -4.500  -0.3520   0.00840   0.00288  -0.0079   0.6774   0.3644
  -4.250  -0.3257   0.00835   0.00280  -0.0074   0.6638   0.3755
  -4.000  -0.2994   0.00823   0.00272  -0.0070   0.6520   0.3892
  -3.750  -0.2735   0.00817   0.00265  -0.0064   0.6386   0.4040
  -3.250  -0.2205   0.00803   0.00254  -0.0055   0.6131   0.4338
  -3.000  -0.1937   0.00799   0.00249  -0.0051   0.5993   0.4461
  -2.750  -0.1666   0.00797   0.00246  -0.0048   0.5858   0.4582
  -2.500  -0.1405   0.00794   0.00243  -0.0043   0.5714   0.4715
  -2.250  -0.1129   0.00793   0.00240  -0.0041   0.5581   0.4834
  -2.000  -0.0865   0.00791   0.00238  -0.0036   0.5440   0.4958
  -1.500  -0.0327   0.00793   0.00236  -0.0029   0.5142   0.5180
  -1.250  -0.0057   0.00797   0.00236  -0.0026   0.4986   0.5284
  -1.000   0.0204   0.00800   0.00237  -0.0021   0.4826   0.5408
  -0.750   0.0475   0.00803   0.00238  -0.0018   0.4685   0.5518
  -0.500   0.0743   0.00805   0.00240  -0.0015   0.4560   0.5635
   0.000   0.1282   0.00813   0.00244  -0.0008   0.4311   0.5848
   0.250   0.1551   0.00821   0.00248  -0.0005   0.4181   0.5949
   0.500   0.1818   0.00823   0.00251  -0.0002   0.4063   0.6073
   0.750   0.2088   0.00830   0.00255   0.0001   0.3947   0.6181
   1.000   0.2355   0.00834   0.00260   0.0004   0.3836   0.6303
   1.250   0.2625   0.00840   0.00265   0.0007   0.3725   0.6414
   1.500   0.2886   0.00848   0.00271   0.0011   0.3597   0.6542
   1.750   0.3155   0.00852   0.00277   0.0014   0.3489   0.6670
   2.000   0.3415   0.00863   0.00285   0.0019   0.3359   0.6807
   2.250   0.3673   0.00872   0.00293   0.0023   0.3223   0.6939
   2.750   0.4189   0.00894   0.00312   0.0032   0.2958   0.7205
   3.250   0.4703   0.00918   0.00334   0.0042   0.2734   0.7485
   3.500   0.4952   0.00932   0.00348   0.0048   0.2630   0.7633
   3.750   0.5211   0.00943   0.00360   0.0052   0.2541   0.7773
   4.000   0.5462   0.00958   0.00374   0.0058   0.2451   0.7918
   4.250   0.5715   0.00970   0.00389   0.0063   0.2364   0.8068
   4.500   0.5961   0.00986   0.00405   0.0069   0.2275   0.8236
   4.750   0.6204   0.01003   0.00422   0.0077   0.2175   0.8400
   5.000   0.6444   0.01021   0.00441   0.0084   0.2063   0.8542
   5.250   0.6679   0.01046   0.00461   0.0092   0.1939   0.8661
   5.500   0.6901   0.01073   0.00484   0.0102   0.1792   0.8780
   5.750   0.7104   0.01112   0.00512   0.0115   0.1604   0.8887
   6.000   0.7283   0.01159   0.00549   0.0132   0.1373   0.9007
   6.250   0.7406   0.01224   0.00597   0.0159   0.1061   0.9125
   6.500   0.7443   0.01314   0.00668   0.0200   0.0678   0.9265
   6.750   0.7621   0.01354   0.00708   0.0218   0.0638   0.9372
   7.000   0.7811   0.01389   0.00744   0.0233   0.0622   0.9476
   7.250   0.7997   0.01427   0.00784   0.0248   0.0608   0.9583
   7.500   0.8206   0.01471   0.00829   0.0258   0.0595   0.9669
   7.750   0.8407   0.01516   0.00875   0.0269   0.0585   0.9762
   8.000   0.8694   0.01559   0.00918   0.0261   0.0580   0.9806
   8.250   0.8984   0.01606   0.00967   0.0252   0.0574   0.9848
   8.500   0.9272   0.01657   0.01018   0.0243   0.0569   0.9888
   8.750   0.9553   0.01711   0.01073   0.0233   0.0563   0.9918
   9.000   0.9855   0.01770   0.01133   0.0219   0.0557   0.9933
   9.250   1.0144   0.01834   0.01198   0.0206   0.0552   0.9953
   9.500   1.0417   0.01906   0.01271   0.0194   0.0547   0.9976
   9.750   1.0680   0.01987   0.01354   0.0183   0.0542   0.9997
  10.000   1.0674   0.02049   0.01419   0.0223   0.0539   1.0000
  10.250   1.0655   0.02119   0.01493   0.0264   0.0536   1.0000
  10.500   1.0666   0.02209   0.01586   0.0296   0.0533   1.0000
  10.750   1.0725   0.02304   0.01685   0.0318   0.0531   1.0000
  11.000   1.0832   0.02393   0.01776   0.0333   0.0530   1.0000
  11.250   1.0942   0.02491   0.01878   0.0344   0.0529   1.0000
  11.500   1.1050   0.02600   0.01991   0.0354   0.0527   1.0000
  11.750   1.1154   0.02720   0.02115   0.0362   0.0526   1.0000
  12.000   1.1253   0.02851   0.02250   0.0370   0.0524   1.0000
  12.250   1.1346   0.02993   0.02396   0.0376   0.0523   1.0000
  12.500   1.1431   0.03148   0.02556   0.0381   0.0521   1.0000
  12.750   1.1504   0.03318   0.02731   0.0385   0.0520   1.0000
  13.000   1.1570   0.03501   0.02919   0.0388   0.0519   1.0000
  13.250   1.1629   0.03698   0.03122   0.0390   0.0517   1.0000
  13.500   1.1678   0.03909   0.03338   0.0390   0.0516   1.0000
  13.750   1.1719   0.04134   0.03569   0.0390   0.0515   1.0000
  14.000   1.1753   0.04372   0.03813   0.0389   0.0513   1.0000
  14.250   1.1779   0.04625   0.04071   0.0387   0.0512   1.0000
  14.500   1.1798   0.04891   0.04343   0.0383   0.0510   1.0000
  14.750   1.1807   0.05171   0.04629   0.0379   0.0509   1.0000
  15.000   1.1811   0.05462   0.04927   0.0374   0.0508   1.0000
  15.250   1.1812   0.05760   0.05230   0.0368   0.0506   1.0000
  15.500   1.1809   0.06066   0.05542   0.0362   0.0505   1.0000
  15.750   1.1796   0.06386   0.05869   0.0354   0.0504   1.0000
  16.000   1.1785   0.06709   0.06197   0.0347   0.0503   1.0000
  16.250   1.1784   0.07019   0.06513   0.0339   0.0503   1.0000
  16.500   1.1772   0.07347   0.06847   0.0330   0.0502   1.0000
  16.750   1.1771   0.07660   0.07165   0.0322   0.0501   1.0000
  17.000   1.1769   0.07977   0.07486   0.0313   0.0500   1.0000
  17.250   1.1777   0.08281   0.07795   0.0304   0.0499   1.0000
  17.500   1.1783   0.08593   0.08111   0.0295   0.0498   1.0000
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