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NACA 64(4)-221 (naca644221-il) Xfoil prediction polar at RE=500,000 Ncrit=5


Details Polar file
Airfoil: NACA 64(4)-221 (naca644221-il)
Reynolds number: 500,000
Max Cl/Cd: 82.33 at α=6.75°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-naca644221-il-500000-n5.txt
Download as CSV file: xf-naca644221-il-500000-n5.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 =   5.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -19.750  -1.0303   0.09499   0.09001  -0.0436   1.0000   0.0232
 -19.500  -1.0299   0.09164   0.08660  -0.0451   1.0000   0.0235
 -19.250  -1.0294   0.08834   0.08324  -0.0464   1.0000   0.0237
 -19.000  -1.0281   0.08522   0.08006  -0.0477   1.0000   0.0240
 -18.750  -1.0262   0.08221   0.07698  -0.0488   1.0000   0.0242
 -18.500  -1.0232   0.07937   0.07408  -0.0498   1.0000   0.0246
 -18.250  -1.0193   0.07668   0.07132  -0.0508   1.0000   0.0250
 -18.000  -1.0165   0.07394   0.06851  -0.0516   1.0000   0.0253
 -17.750  -1.0118   0.07144   0.06595  -0.0524   1.0000   0.0256
 -17.500  -1.0066   0.06906   0.06350  -0.0530   1.0000   0.0259
 -17.250  -1.0034   0.06646   0.06085  -0.0537   1.0000   0.0262
 -17.000  -1.0000   0.06394   0.05830  -0.0543   1.0000   0.0266
 -16.750  -0.9957   0.06155   0.05588  -0.0548   1.0000   0.0269
 -16.500  -0.9901   0.05937   0.05366  -0.0552   1.0000   0.0272
 -16.250  -0.9842   0.05721   0.05146  -0.0556   1.0000   0.0276
 -16.000  -0.9773   0.05520   0.04941  -0.0559   1.0000   0.0281
 -15.750  -0.9700   0.05327   0.04743  -0.0562   1.0000   0.0286
 -15.500  -0.9624   0.05139   0.04550  -0.0564   1.0000   0.0290
 -15.250  -0.9536   0.04968   0.04374  -0.0565   1.0000   0.0296
 -15.000  -0.9463   0.04782   0.04185  -0.0566   1.0000   0.0300
 -14.750  -0.9402   0.04591   0.03993  -0.0564   0.9827   0.0306
 -14.500  -0.9040   0.04361   0.03755  -0.0630   0.9370   0.0317
 -14.250  -0.8752   0.04164   0.03543  -0.0674   0.9032   0.0326
 -14.000  -0.8626   0.04033   0.03397  -0.0676   0.8750   0.0335
 -13.750  -0.8539   0.03897   0.03248  -0.0671   0.8553   0.0342
 -13.500  -0.8467   0.03753   0.03096  -0.0665   0.8392   0.0350
 -13.250  -0.8383   0.03620   0.02955  -0.0659   0.8263   0.0358
 -13.000  -0.8292   0.03492   0.02819  -0.0653   0.8134   0.0368
 -12.750  -0.8191   0.03372   0.02691  -0.0647   0.8037   0.0378
 -12.500  -0.8095   0.03251   0.02562  -0.0641   0.7937   0.0389
 -12.250  -0.8005   0.03128   0.02435  -0.0634   0.7853   0.0400
 -12.000  -0.7910   0.03012   0.02313  -0.0627   0.7762   0.0416
 -11.750  -0.7808   0.02905   0.02200  -0.0619   0.7682   0.0433
 -11.500  -0.7713   0.02790   0.02081  -0.0611   0.7601   0.0450
 -11.250  -0.7612   0.02685   0.01971  -0.0602   0.7515   0.0472
 -10.750  -0.7405   0.02479   0.01758  -0.0584   0.7369   0.0520
 -10.500  -0.7298   0.02384   0.01657  -0.0574   0.7299   0.0552
 -10.250  -0.7200   0.02282   0.01554  -0.0564   0.7235   0.0588
 -10.000  -0.7089   0.02191   0.01460  -0.0553   0.7166   0.0628
  -9.750  -0.6992   0.02097   0.01364  -0.0541   0.7100   0.0679
  -9.500  -0.6888   0.02007   0.01272  -0.0529   0.7040   0.0729
  -9.250  -0.6778   0.01923   0.01187  -0.0516   0.6974   0.0786
  -9.000  -0.6678   0.01839   0.01102  -0.0501   0.6911   0.0851
  -8.750  -0.6580   0.01757   0.01020  -0.0486   0.6856   0.0925
  -8.500  -0.6484   0.01678   0.00941  -0.0469   0.6794   0.1010
  -8.250  -0.6400   0.01602   0.00866  -0.0450   0.6734   0.1114
  -8.000  -0.6325   0.01531   0.00796  -0.0427   0.6679   0.1226
  -7.750  -0.6278   0.01472   0.00739  -0.0397   0.6621   0.1349
  -7.500  -0.6194   0.01419   0.00690  -0.0371   0.6561   0.1511
  -7.250  -0.6069   0.01364   0.00641  -0.0352   0.6505   0.1726
  -7.000  -0.5926   0.01304   0.00592  -0.0336   0.6452   0.1998
  -6.750  -0.5770   0.01242   0.00544  -0.0323   0.6398   0.2329
  -6.500  -0.5613   0.01173   0.00491  -0.0309   0.6347   0.2763
  -6.250  -0.5444   0.01103   0.00441  -0.0298   0.6300   0.3259
  -6.000  -0.5251   0.01041   0.00402  -0.0289   0.6255   0.3765
  -5.750  -0.5014   0.01009   0.00387  -0.0286   0.6207   0.4219
  -5.500  -0.4745   0.00999   0.00378  -0.0286   0.6159   0.4449
  -5.000  -0.4182   0.00990   0.00361  -0.0290   0.6074   0.4664
  -4.750  -0.3895   0.00985   0.00352  -0.0293   0.6030   0.4726
  -4.500  -0.3611   0.00981   0.00346  -0.0295   0.5987   0.4793
  -4.250  -0.3324   0.00983   0.00339  -0.0298   0.5946   0.4879
  -4.000  -0.3043   0.00980   0.00340  -0.0299   0.5909   0.4977
  -3.750  -0.2751   0.00982   0.00336  -0.0303   0.5873   0.5054
  -3.500  -0.2461   0.00978   0.00330  -0.0306   0.5834   0.5092
  -3.250  -0.2171   0.00974   0.00325  -0.0309   0.5797   0.5115
  -3.000  -0.1881   0.00972   0.00319  -0.0312   0.5762   0.5138
  -2.750  -0.1591   0.00972   0.00313  -0.0315   0.5729   0.5160
  -2.500  -0.1297   0.00969   0.00309  -0.0319   0.5698   0.5184
  -2.250  -0.1003   0.00968   0.00305  -0.0323   0.5663   0.5212
  -2.000  -0.0710   0.00969   0.00300  -0.0327   0.5629   0.5238
  -1.750  -0.0418   0.00968   0.00296  -0.0331   0.5597   0.5259
  -1.500  -0.0128   0.00967   0.00293  -0.0334   0.5569   0.5278
  -1.250   0.0162   0.00967   0.00291  -0.0337   0.5542   0.5296
  -1.000   0.0456   0.00965   0.00290  -0.0341   0.5519   0.5315
  -0.750   0.0750   0.00964   0.00290  -0.0345   0.5494   0.5335
  -0.500   0.1044   0.00964   0.00290  -0.0349   0.5469   0.5357
  -0.250   0.1337   0.00965   0.00290  -0.0353   0.5444   0.5381
   0.000   0.1629   0.00967   0.00290  -0.0357   0.5420   0.5404
   0.250   0.1922   0.00970   0.00291  -0.0361   0.5398   0.5425
   0.500   0.2213   0.00974   0.00292  -0.0364   0.5377   0.5444
   0.750   0.2503   0.00977   0.00295  -0.0368   0.5357   0.5467
   1.000   0.2796   0.00977   0.00299  -0.0371   0.5339   0.5491
   1.250   0.3088   0.00978   0.00304  -0.0375   0.5319   0.5516
   1.500   0.3381   0.00980   0.00309  -0.0379   0.5297   0.5543
   1.750   0.3673   0.00984   0.00314  -0.0383   0.5275   0.5571
   2.000   0.3964   0.00988   0.00319  -0.0387   0.5256   0.5598
   2.250   0.4256   0.00993   0.00324  -0.0390   0.5238   0.5624
   2.500   0.4545   0.00997   0.00331  -0.0394   0.5217   0.5653
   2.750   0.4831   0.01003   0.00338  -0.0396   0.5192   0.5684
   3.000   0.5118   0.01009   0.00346  -0.0399   0.5165   0.5717
   3.250   0.5408   0.01012   0.00355  -0.0403   0.5142   0.5752
   3.500   0.5697   0.01017   0.00364  -0.0406   0.5121   0.5789
   3.750   0.5986   0.01023   0.00374  -0.0409   0.5099   0.5824
   4.000   0.6271   0.01028   0.00384  -0.0412   0.5076   0.5863
   4.250   0.6556   0.01034   0.00395  -0.0415   0.5053   0.5904
   4.500   0.6838   0.01041   0.00404  -0.0417   0.5023   0.5945
   4.750   0.7115   0.01049   0.00414  -0.0418   0.4973   0.5986
   5.250   0.7656   0.01058   0.00430  -0.0418   0.4832   0.6067
   5.500   0.7925   0.01063   0.00441  -0.0418   0.4752   0.6113
   5.750   0.8192   0.01072   0.00453  -0.0417   0.4683   0.6161
   6.000   0.8455   0.01084   0.00466  -0.0416   0.4627   0.6206
   6.250   0.8724   0.01090   0.00481  -0.0416   0.4556   0.6252
   6.500   0.8969   0.01104   0.00495  -0.0412   0.4455   0.6303
   6.750   0.9205   0.01118   0.00512  -0.0407   0.4284   0.6356
   7.000   0.9394   0.01148   0.00532  -0.0394   0.3947   0.6406
   7.250   0.9486   0.01210   0.00575  -0.0366   0.3539   0.6454
   7.500   0.9546   0.01281   0.00632  -0.0333   0.3198   0.6509
   7.750   0.9536   0.01351   0.00691  -0.0289   0.2901   0.6565
   8.250   0.9514   0.01543   0.00862  -0.0211   0.2355   0.6675
   8.500   0.9517   0.01653   0.00965  -0.0179   0.2128   0.6739
   8.750   0.9536   0.01767   0.01072  -0.0153   0.1925   0.6802
   9.000   0.9560   0.01887   0.01188  -0.0128   0.1737   0.6865
   9.250   0.9592   0.02013   0.01310  -0.0107   0.1571   0.6934
   9.500   0.9632   0.02142   0.01435  -0.0088   0.1427   0.7002
   9.750   0.9668   0.02279   0.01570  -0.0070   0.1287   0.7064
  10.000   0.9714   0.02415   0.01706  -0.0054   0.1170   0.7133
  10.250   0.9767   0.02555   0.01844  -0.0039   0.1069   0.7202
  10.500   0.9821   0.02698   0.01986  -0.0026   0.0981   0.7266
  10.750   0.9883   0.02838   0.02129  -0.0014   0.0902   0.7340
  11.000   0.9955   0.02977   0.02269  -0.0004   0.0832   0.7413
  11.250   1.0015   0.03126   0.02420   0.0006   0.0769   0.7483
  11.500   1.0076   0.03280   0.02575   0.0015   0.0706   0.7561
  12.000   1.0226   0.03580   0.02882   0.0030   0.0603   0.7719
  12.250   1.0298   0.03739   0.03042   0.0037   0.0558   0.7807
  12.500   1.0369   0.03899   0.03208   0.0043   0.0515   0.7898
  12.750   1.0449   0.04058   0.03370   0.0048   0.0480   0.7996
  13.000   1.0523   0.04222   0.03540   0.0054   0.0452   0.8097
  13.250   1.0605   0.04383   0.03706   0.0058   0.0426   0.8213
  13.500   1.0673   0.04553   0.03884   0.0063   0.0402   0.8341
  13.750   1.0749   0.04719   0.04058   0.0067   0.0383   0.8492
  14.000   1.0820   0.04883   0.04232   0.0072   0.0365   0.8679
  14.250   1.0876   0.05057   0.04418   0.0079   0.0352   0.8990
  14.500   1.1076   0.05256   0.04632   0.0052   0.0334   0.9748
  14.750   1.1140   0.05440   0.04819   0.0055   0.0323   1.0000
  15.000   1.1209   0.05650   0.05030   0.0053   0.0311   1.0000
  15.250   1.1290   0.05848   0.05232   0.0051   0.0301   1.0000
  15.500   1.1367   0.06057   0.05445   0.0049   0.0293   1.0000
  15.750   1.1440   0.06269   0.05661   0.0046   0.0283   1.0000
  16.000   1.1512   0.06488   0.05884   0.0042   0.0277   1.0000
  16.250   1.1561   0.06736   0.06134   0.0038   0.0269   1.0000
  16.500   1.1629   0.06963   0.06366   0.0033   0.0262   1.0000
  16.750   1.1693   0.07200   0.06609   0.0028   0.0256   1.0000
  17.000   1.1751   0.07446   0.06860   0.0022   0.0250   1.0000
  17.250   1.1810   0.07694   0.07113   0.0016   0.0244   1.0000
  17.500   1.1848   0.07973   0.07397   0.0008   0.0239   1.0000
  17.750   1.1885   0.08254   0.07682   0.0000   0.0234   1.0000
  18.000   1.1912   0.08554   0.07988  -0.0009   0.0229   1.0000
  18.250   1.1960   0.08831   0.08272  -0.0018   0.0225   1.0000
  18.500   1.1999   0.09123   0.08571  -0.0027   0.0221   1.0000
  18.750   1.2030   0.09429   0.08884  -0.0038   0.0215   1.0000
  19.000   1.2056   0.09744   0.09205  -0.0050   0.0212   1.0000
  19.250   1.2071   0.10079   0.09547  -0.0063   0.0209   1.0000
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