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EPPLER E837 HYDROFOIL AIRFOIL (e837-il) Xfoil prediction polar at RE=200,000 Ncrit=9


Details Polar file
Airfoil: EPPLER E837 HYDROFOIL AIRFOIL (e837-il)
Reynolds number: 200,000
Max Cl/Cd: 53 at α=7.25°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e837-il-200000.txt
Download as CSV file: xf-e837-il-200000.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 =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -15.500  -0.7813   0.10508   0.10119  -0.0262   1.0000   0.0244
 -15.250  -0.8018   0.09723   0.09323  -0.0304   1.0000   0.0239
 -15.000  -0.8230   0.09002   0.08587  -0.0343   1.0000   0.0236
 -14.750  -0.8468   0.08305   0.07872  -0.0378   1.0000   0.0235
 -14.500  -0.8674   0.07707   0.07255  -0.0404   1.0000   0.0233
 -14.250  -0.8851   0.07184   0.06713  -0.0421   1.0000   0.0230
 -14.000  -0.9038   0.06679   0.06186  -0.0433   1.0000   0.0229
 -13.750  -0.9201   0.06220   0.05703  -0.0439   1.0000   0.0228
 -13.500  -0.9330   0.05824   0.05284  -0.0440   1.0000   0.0229
 -13.250  -0.9419   0.05452   0.04888  -0.0437   1.0000   0.0226
 -13.000  -0.9491   0.05132   0.04543  -0.0431   1.0000   0.0230
 -12.750  -0.9511   0.04826   0.04213  -0.0422   1.0000   0.0230
 -12.500  -0.9524   0.04592   0.03956  -0.0412   1.0000   0.0237
 -12.250  -0.9500   0.04366   0.03706  -0.0401   1.0000   0.0241
 -12.000  -0.9490   0.04193   0.03509  -0.0387   1.0000   0.0246
 -11.750  -0.9284   0.03883   0.03178  -0.0382   1.0000   0.0253
 -11.500  -0.9043   0.03670   0.02961  -0.0378   1.0000   0.0265
 -11.250  -0.8872   0.03518   0.02805  -0.0370   1.0000   0.0276
 -11.000  -0.8706   0.03377   0.02655  -0.0362   1.0000   0.0290
 -10.750  -0.8540   0.03245   0.02516  -0.0352   1.0000   0.0303
 -10.500  -0.8401   0.03135   0.02392  -0.0343   1.0000   0.0322
 -10.250  -0.8296   0.02951   0.02218  -0.0328   1.0000   0.0349
 -10.000  -0.8195   0.02823   0.02090  -0.0316   1.0000   0.0379
  -9.750  -0.8085   0.02700   0.01959  -0.0303   1.0000   0.0408
  -9.500  -0.8071   0.02522   0.01786  -0.0282   1.0000   0.0440
  -9.250  -0.7990   0.02405   0.01669  -0.0267   1.0000   0.0498
  -9.000  -0.7985   0.02256   0.01523  -0.0243   1.0000   0.0555
  -8.750  -0.7976   0.02142   0.01413  -0.0216   1.0000   0.0645
  -8.500  -0.8050   0.02045   0.01329  -0.0179   0.9911   0.0770
  -8.250  -0.7859   0.01812   0.01143  -0.0200   0.9698   0.1391
  -8.000  -0.7684   0.01647   0.01018  -0.0206   0.9513   0.2136
  -7.750  -0.7549   0.01525   0.00929  -0.0196   0.9349   0.2807
  -7.500  -0.7445   0.01440   0.00870  -0.0173   0.9202   0.3416
  -7.250  -0.7335   0.01384   0.00834  -0.0146   0.9078   0.3993
  -7.000  -0.7184   0.01356   0.00817  -0.0124   0.8973   0.4480
  -6.750  -0.7006   0.01347   0.00816  -0.0105   0.8873   0.4876
  -6.500  -0.6807   0.01355   0.00820  -0.0088   0.8792   0.5192
  -6.250  -0.6585   0.01368   0.00829  -0.0076   0.8707   0.5418
  -6.000  -0.6348   0.01383   0.00834  -0.0065   0.8640   0.5586
  -5.750  -0.6106   0.01402   0.00845  -0.0057   0.8565   0.5741
  -5.500  -0.5858   0.01423   0.00856  -0.0048   0.8506   0.5876
  -5.250  -0.5606   0.01438   0.00864  -0.0042   0.8434   0.5994
  -5.000  -0.5363   0.01452   0.00862  -0.0034   0.8378   0.6111
  -4.750  -0.5079   0.01476   0.00887  -0.0032   0.8316   0.6192
  -4.500  -0.4824   0.01486   0.00888  -0.0027   0.8255   0.6287
  -4.250  -0.4554   0.01503   0.00895  -0.0022   0.8210   0.6369
  -4.000  -0.4288   0.01511   0.00899  -0.0021   0.8145   0.6444
  -3.750  -0.4020   0.01521   0.00903  -0.0017   0.8093   0.6518
  -3.500  -0.3756   0.01528   0.00902  -0.0014   0.8044   0.6589
  -3.250  -0.3481   0.01539   0.00911  -0.0013   0.7986   0.6654
  -3.000  -0.3226   0.01537   0.00898  -0.0010   0.7938   0.6726
  -2.750  -0.2945   0.01548   0.00908  -0.0009   0.7890   0.6776
  -2.500  -0.2695   0.01544   0.00895  -0.0007   0.7833   0.6852
  -2.250  -0.2414   0.01547   0.00897  -0.0006   0.7789   0.6895
  -2.000  -0.2142   0.01553   0.00900  -0.0004   0.7743   0.6949
  -1.750  -0.1890   0.01547   0.00887  -0.0004   0.7685   0.7016
  -1.500  -0.1607   0.01550   0.00890  -0.0003   0.7642   0.7055
  -1.250  -0.1337   0.01552   0.00888  -0.0002   0.7601   0.7109
  -1.000  -0.1083   0.01547   0.00880  -0.0002   0.7541   0.7169
  -0.750  -0.0803   0.01549   0.00883  -0.0001   0.7497   0.7207
  -0.500  -0.0529   0.01548   0.00878   0.0000   0.7462   0.7256
  -0.250  -0.0278   0.01547   0.00876  -0.0001   0.7399   0.7317
   0.000   0.0000   0.01548   0.00880   0.0000   0.7353   0.7353
   0.250   0.0277   0.01547   0.00876   0.0001   0.7317   0.7399
   0.500   0.0529   0.01548   0.00878   0.0000   0.7256   0.7462
   0.750   0.0803   0.01549   0.00883   0.0001   0.7207   0.7497
   1.000   0.1083   0.01547   0.00880   0.0002   0.7169   0.7542
   1.250   0.1337   0.01552   0.00888   0.0002   0.7109   0.7601
   1.500   0.1607   0.01550   0.00891   0.0003   0.7056   0.7642
   1.750   0.1889   0.01547   0.00887   0.0004   0.7016   0.7685
   2.000   0.2142   0.01553   0.00900   0.0005   0.6949   0.7743
   2.250   0.2413   0.01547   0.00897   0.0006   0.6895   0.7789
   2.500   0.2695   0.01544   0.00895   0.0007   0.6852   0.7833
   2.750   0.2945   0.01547   0.00908   0.0009   0.6776   0.7890
   3.000   0.3225   0.01536   0.00898   0.0010   0.6726   0.7938
   3.250   0.3481   0.01539   0.00911   0.0013   0.6654   0.7986
   3.500   0.3756   0.01528   0.00902   0.0014   0.6589   0.8044
   3.750   0.4020   0.01521   0.00903   0.0017   0.6518   0.8093
   4.000   0.4288   0.01511   0.00900   0.0021   0.6444   0.8145
   4.250   0.4554   0.01503   0.00895   0.0023   0.6369   0.8210
   4.500   0.4823   0.01486   0.00887   0.0027   0.6287   0.8255
   4.750   0.5079   0.01476   0.00887   0.0032   0.6192   0.8316
   5.000   0.5363   0.01452   0.00862   0.0034   0.6109   0.8378
   5.250   0.5606   0.01438   0.00864   0.0042   0.5995   0.8434
   5.500   0.5858   0.01423   0.00856   0.0048   0.5876   0.8506
   5.750   0.6105   0.01402   0.00845   0.0057   0.5741   0.8565
   6.000   0.6348   0.01384   0.00835   0.0065   0.5588   0.8640
   6.250   0.6585   0.01368   0.00829   0.0076   0.5418   0.8707
   6.500   0.6807   0.01354   0.00820   0.0088   0.5191   0.8792
   6.750   0.7006   0.01347   0.00815   0.0105   0.4875   0.8872
   7.000   0.7184   0.01356   0.00817   0.0124   0.4483   0.8973
   7.250   0.7335   0.01384   0.00834   0.0146   0.3996   0.9078
   7.500   0.7444   0.01441   0.00870   0.0173   0.3414   0.9203
   7.750   0.7547   0.01526   0.00929   0.0196   0.2799   0.9350
   8.000   0.7684   0.01647   0.01018   0.0206   0.2135   0.9514
   8.250   0.7860   0.01813   0.01144   0.0200   0.1383   0.9698
   8.500   0.8050   0.02047   0.01330   0.0179   0.0767   0.9913
   8.750   0.7982   0.02140   0.01411   0.0215   0.0648   1.0000
   9.000   0.7987   0.02256   0.01523   0.0243   0.0555   1.0000
   9.250   0.7998   0.02402   0.01666   0.0266   0.0494   1.0000
   9.500   0.8074   0.02521   0.01786   0.0282   0.0441   1.0000
   9.750   0.8088   0.02701   0.01960   0.0302   0.0408   1.0000
  10.000   0.8200   0.02821   0.02088   0.0315   0.0379   1.0000
  10.250   0.8304   0.02948   0.02216   0.0327   0.0351   1.0000
  10.500   0.8405   0.03128   0.02387   0.0342   0.0323   1.0000
  10.750   0.8547   0.03244   0.02515   0.0352   0.0304   1.0000
  11.000   0.8708   0.03376   0.02655   0.0361   0.0289   1.0000
  11.250   0.8874   0.03516   0.02803   0.0370   0.0276   1.0000
  11.500   0.9050   0.03668   0.02960   0.0377   0.0266   1.0000
  11.750   0.9277   0.03872   0.03167   0.0382   0.0254   1.0000
  12.000   0.9473   0.04178   0.03495   0.0388   0.0246   1.0000
  12.250   0.9505   0.04369   0.03709   0.0400   0.0241   1.0000
  12.500   0.9530   0.04593   0.03957   0.0412   0.0237   1.0000
  12.750   0.9513   0.04825   0.04212   0.0422   0.0229   1.0000
  13.000   0.9495   0.05124   0.04535   0.0430   0.0229   1.0000
  13.250   0.9431   0.05454   0.04889   0.0436   0.0228   1.0000
  13.500   0.9331   0.05824   0.05285   0.0439   0.0227   1.0000
  13.750   0.9200   0.06231   0.05715   0.0438   0.0228   1.0000
  14.000   0.9048   0.06684   0.06191   0.0432   0.0230   1.0000
  14.250   0.8856   0.07186   0.06716   0.0420   0.0229   1.0000
  14.500   0.8682   0.07710   0.07257   0.0402   0.0233   1.0000
  14.750   0.8483   0.08303   0.07868   0.0378   0.0236   1.0000
  15.000   0.8249   0.08991   0.08575   0.0343   0.0237   1.0000
  15.250   0.8025   0.09732   0.09331   0.0303   0.0240   1.0000
  15.500   0.7818   0.10517   0.10128   0.0259   0.0244   1.0000
  15.750   0.7589   0.11422   0.11042   0.0210   0.0247   1.0000
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