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EPPLER E837 HYDROFOIL AIRFOIL (e837-il) Xfoil prediction polar at RE=200,000 Ncrit=5


Details Polar file
Airfoil: EPPLER E837 HYDROFOIL AIRFOIL (e837-il)
Reynolds number: 200,000
Max Cl/Cd: 50.3 at α=6.25°
Description: Mach=0 Ncrit=5
Source: Xfoil prediction
Download polar: xf-e837-il-200000-n5.txt
Download as CSV file: xf-e837-il-200000-n5.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER E837 HYDROFOIL AIRFOIL                   
  
 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
  ------ -------- --------- --------- -------- -------- --------
 -17.500  -0.8325   0.12574   0.12164  -0.0072   1.0000   0.0091
 -17.250  -0.8509   0.11698   0.11270  -0.0124   1.0000   0.0091
 -17.000  -0.8681   0.10893   0.10445  -0.0170   1.0000   0.0091
 -16.750  -0.8825   0.10187   0.09722  -0.0209   1.0000   0.0091
 -16.500  -0.8934   0.09568   0.09083  -0.0242   1.0000   0.0090
 -16.250  -0.9047   0.08984   0.08485  -0.0271   1.0000   0.0091
 -16.000  -0.9130   0.08468   0.07953  -0.0295   1.0000   0.0092
 -15.750  -0.9197   0.07997   0.07469  -0.0316   1.0000   0.0093
 -15.500  -0.9259   0.07550   0.07006  -0.0333   1.0000   0.0094
 -15.250  -0.9302   0.07150   0.06595  -0.0349   1.0000   0.0096
 -15.000  -0.9330   0.06779   0.06209  -0.0360   1.0000   0.0097
 -14.750  -0.9348   0.06436   0.05853  -0.0369   1.0000   0.0098
 -14.500  -0.9352   0.06121   0.05525  -0.0376   1.0000   0.0100
 -14.250  -0.9349   0.05825   0.05217  -0.0382   1.0000   0.0103
 -14.000  -0.9330   0.05558   0.04937  -0.0386   1.0000   0.0108
 -13.750  -0.9305   0.05304   0.04669  -0.0387   1.0000   0.0113
 -13.500  -0.9267   0.05068   0.04417  -0.0387   1.0000   0.0118
 -13.250  -0.9215   0.04851   0.04187  -0.0385   1.0000   0.0121
 -13.000  -0.9158   0.04645   0.03965  -0.0382   1.0000   0.0124
 -12.750  -0.9127   0.04419   0.03732  -0.0377   1.0000   0.0129
 -12.500  -0.9093   0.04205   0.03513  -0.0372   1.0000   0.0134
 -12.250  -0.9043   0.04012   0.03313  -0.0367   1.0000   0.0139
 -12.000  -0.8982   0.03834   0.03128  -0.0361   1.0000   0.0143
 -11.750  -0.8918   0.03662   0.02948  -0.0354   1.0000   0.0151
 -11.500  -0.8860   0.03488   0.02765  -0.0346   1.0000   0.0157
 -11.250  -0.8784   0.03334   0.02600  -0.0338   1.0000   0.0167
 -11.000  -0.8733   0.03165   0.02426  -0.0328   1.0000   0.0177
 -10.750  -0.8674   0.03009   0.02267  -0.0318   1.0000   0.0190
 -10.500  -0.8589   0.02876   0.02128  -0.0308   1.0000   0.0204
 -10.250  -0.8493   0.02755   0.01998  -0.0298   1.0000   0.0224
 -10.000  -0.8434   0.02614   0.01853  -0.0284   1.0000   0.0244
  -9.750  -0.8353   0.02493   0.01730  -0.0270   1.0000   0.0266
  -9.500  -0.8254   0.02391   0.01622  -0.0257   1.0000   0.0297
  -9.250  -0.8155   0.02278   0.01511  -0.0246   0.9782   0.0342
  -9.000  -0.7880   0.02155   0.01383  -0.0269   0.9289   0.0436
  -8.750  -0.7710   0.02049   0.01274  -0.0267   0.8999   0.0562
  -8.500  -0.7610   0.01961   0.01185  -0.0248   0.8784   0.0711
  -8.250  -0.7524   0.01885   0.01106  -0.0224   0.8620   0.0888
  -8.000  -0.7463   0.01813   0.01039  -0.0194   0.8487   0.1111
  -7.750  -0.7375   0.01741   0.00974  -0.0168   0.8378   0.1384
  -7.500  -0.7263   0.01670   0.00913  -0.0146   0.8277   0.1692
  -7.250  -0.7145   0.01600   0.00853  -0.0124   0.8191   0.2033
  -7.000  -0.7032   0.01525   0.00794  -0.0102   0.8111   0.2471
  -6.750  -0.6926   0.01443   0.00737  -0.0078   0.8036   0.3031
  -6.500  -0.6812   0.01368   0.00689  -0.0055   0.7966   0.3660
  -6.250  -0.6645   0.01321   0.00660  -0.0038   0.7904   0.4177
  -6.000  -0.6433   0.01294   0.00640  -0.0027   0.7842   0.4529
  -5.500  -0.5966   0.01267   0.00612  -0.0012   0.7731   0.5059
  -5.250  -0.5717   0.01260   0.00598  -0.0007   0.7679   0.5239
  -5.000  -0.5463   0.01256   0.00586  -0.0003   0.7633   0.5388
  -4.750  -0.5202   0.01252   0.00577   0.0000   0.7577   0.5520
  -4.500  -0.4941   0.01249   0.00566   0.0003   0.7529   0.5638
  -4.250  -0.4677   0.01247   0.00551   0.0005   0.7486   0.5747
  -4.000  -0.4407   0.01246   0.00547   0.0006   0.7435   0.5834
  -3.750  -0.4138   0.01244   0.00537   0.0008   0.7388   0.5918
  -3.250  -0.3596   0.01243   0.00523   0.0009   0.7299   0.6074
  -3.000  -0.3325   0.01241   0.00514   0.0010   0.7253   0.6147
  -2.750  -0.3050   0.01240   0.00506   0.0010   0.7214   0.6207
  -2.500  -0.2774   0.01239   0.00501   0.0009   0.7170   0.6266
  -2.250  -0.2501   0.01237   0.00492   0.0009   0.7124   0.6329
  -2.000  -0.2223   0.01236   0.00490   0.0009   0.7083   0.6376
  -1.750  -0.1947   0.01235   0.00481   0.0008   0.7046   0.6433
  -1.500  -0.1670   0.01233   0.00477   0.0007   0.6999   0.6482
  -1.250  -0.1391   0.01232   0.00476   0.0006   0.6955   0.6524
  -1.000  -0.1113   0.01231   0.00469   0.0005   0.6918   0.6573
  -0.750  -0.0837   0.01230   0.00465   0.0004   0.6875   0.6621
  -0.500  -0.0557   0.01229   0.00467   0.0002   0.6829   0.6658
  -0.250  -0.0278   0.01229   0.00465   0.0001   0.6789   0.6703
   0.000   0.0000   0.01229   0.00459   0.0000   0.6752   0.6752
   0.250   0.0278   0.01229   0.00465  -0.0001   0.6703   0.6788
   0.500   0.0557   0.01229   0.00467  -0.0002   0.6658   0.6829
   0.750   0.0837   0.01230   0.00465  -0.0004   0.6621   0.6875
   1.000   0.1113   0.01231   0.00469  -0.0005   0.6573   0.6918
   1.250   0.1391   0.01232   0.00476  -0.0006   0.6524   0.6955
   1.500   0.1670   0.01233   0.00477  -0.0007   0.6482   0.6999
   1.750   0.1947   0.01235   0.00481  -0.0008   0.6432   0.7046
   2.000   0.2223   0.01236   0.00489  -0.0009   0.6376   0.7083
   2.250   0.2501   0.01237   0.00492  -0.0009   0.6329   0.7124
   2.500   0.2775   0.01239   0.00501  -0.0010   0.6267   0.7171
   2.750   0.3050   0.01240   0.00506  -0.0010   0.6207   0.7214
   3.000   0.3325   0.01241   0.00514  -0.0010   0.6147   0.7253
   3.250   0.3596   0.01243   0.00523  -0.0009   0.6074   0.7300
   3.750   0.4139   0.01244   0.00537  -0.0008   0.5918   0.7388
   4.000   0.4407   0.01246   0.00547  -0.0006   0.5834   0.7435
   4.250   0.4678   0.01247   0.00551  -0.0005   0.5747   0.7486
   4.500   0.4941   0.01250   0.00566  -0.0003   0.5638   0.7529
   4.750   0.5203   0.01252   0.00576   0.0000   0.5520   0.7577
   5.000   0.5463   0.01256   0.00585   0.0002   0.5388   0.7633
   5.250   0.5718   0.01260   0.00598   0.0007   0.5239   0.7678
   5.500   0.5967   0.01267   0.00612   0.0012   0.5060   0.7731
   6.000   0.6434   0.01294   0.00640   0.0027   0.4529   0.7842
   6.250   0.6645   0.01321   0.00660   0.0038   0.4175   0.7904
   6.500   0.6813   0.01368   0.00689   0.0055   0.3660   0.7966
   6.750   0.6929   0.01442   0.00737   0.0078   0.3038   0.8036
   7.000   0.7030   0.01527   0.00795   0.0102   0.2455   0.8111
   7.250   0.7144   0.01602   0.00854   0.0124   0.2022   0.8191
   7.500   0.7264   0.01671   0.00913   0.0145   0.1689   0.8276
   7.750   0.7378   0.01741   0.00974   0.0167   0.1386   0.8378
   8.000   0.7468   0.01812   0.01039   0.0193   0.1114   0.8487
   8.250   0.7531   0.01883   0.01106   0.0223   0.0892   0.8620
   8.500   0.7612   0.01962   0.01185   0.0248   0.0705   0.8785
   8.750   0.7715   0.02049   0.01274   0.0267   0.0561   0.8999
   9.000   0.7886   0.02155   0.01383   0.0268   0.0437   0.9289
   9.250   0.8160   0.02279   0.01510   0.0245   0.0336   0.9785
   9.500   0.8259   0.02391   0.01622   0.0256   0.0298   1.0000
   9.750   0.8360   0.02492   0.01729   0.0269   0.0268   1.0000
  10.000   0.8439   0.02615   0.01853   0.0283   0.0243   1.0000
  10.250   0.8501   0.02755   0.01997   0.0296   0.0224   1.0000
  10.500   0.8586   0.02883   0.02136   0.0308   0.0210   1.0000
  10.750   0.8680   0.03010   0.02267   0.0317   0.0187   1.0000
  11.000   0.8740   0.03166   0.02426   0.0327   0.0175   1.0000
  11.250   0.8796   0.03332   0.02599   0.0336   0.0166   1.0000
  11.500   0.8868   0.03489   0.02766   0.0345   0.0158   1.0000
  11.750   0.8930   0.03660   0.02945   0.0353   0.0150   1.0000
  12.000   0.8991   0.03835   0.03129   0.0360   0.0143   1.0000
  12.250   0.9052   0.04014   0.03314   0.0365   0.0138   1.0000
  12.500   0.9100   0.04209   0.03515   0.0370   0.0133   1.0000
  12.750   0.9138   0.04419   0.03732   0.0375   0.0129   1.0000
  13.000   0.9172   0.04643   0.03965   0.0380   0.0124   1.0000
  13.250   0.9230   0.04849   0.04184   0.0384   0.0122   1.0000
  13.500   0.9278   0.05071   0.04421   0.0386   0.0117   1.0000
  13.750   0.9318   0.05305   0.04670   0.0386   0.0113   1.0000
  14.000   0.9347   0.05553   0.04931   0.0383   0.0107   1.0000
  14.250   0.9366   0.05821   0.05213   0.0380   0.0104   1.0000
  14.500   0.9374   0.06111   0.05515   0.0374   0.0101   1.0000
  14.750   0.9360   0.06440   0.05858   0.0368   0.0099   1.0000
  15.000   0.9345   0.06778   0.06207   0.0357   0.0096   1.0000
  15.250   0.9316   0.07150   0.06593   0.0346   0.0095   1.0000
  15.500   0.9272   0.07555   0.07013   0.0332   0.0094   1.0000
  15.750   0.9216   0.07989   0.07459   0.0314   0.0092   1.0000
  16.000   0.9142   0.08477   0.07965   0.0293   0.0093   1.0000
  16.250   0.9063   0.08988   0.08490   0.0269   0.0092   1.0000
  16.500   0.8960   0.09557   0.09073   0.0240   0.0090   1.0000
  16.750   0.8835   0.10196   0.09729   0.0206   0.0090   1.0000
  17.000   0.8699   0.10899   0.10452   0.0167   0.0091   1.0000
  17.250   0.8539   0.11674   0.11246   0.0122   0.0091   1.0000
  17.500   0.8335   0.12598   0.12189   0.0068   0.0091   1.0000
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