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EPPLER E838 HYDROFOIL AIRFOIL (e838-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: EPPLER E838 HYDROFOIL AIRFOIL (e838-il)
Reynolds number: 500,000
Max Cl/Cd: 73.2 at α=6.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e838-il-500000.txt
Download as CSV file: xf-e838-il-500000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: EPPLER E838 HYDROFOIL AIRFOIL                   
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     0.500 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -18.500  -0.8355   0.12340   0.12050  -0.0210   1.0000   0.0099
 -18.250  -0.8607   0.11406   0.11097  -0.0262   1.0000   0.0098
 -18.000  -0.8818   0.10601   0.10275  -0.0305   1.0000   0.0097
 -17.750  -0.8975   0.09936   0.09595  -0.0338   1.0000   0.0096
 -17.500  -0.9141   0.09276   0.08916  -0.0370   1.0000   0.0096
 -17.250  -0.9274   0.08702   0.08324  -0.0395   1.0000   0.0097
 -17.000  -0.9399   0.08166   0.07770  -0.0415   1.0000   0.0097
 -16.750  -0.9490   0.07698   0.07286  -0.0429   1.0000   0.0096
 -16.500  -0.9595   0.07226   0.06793  -0.0443   1.0000   0.0098
 -16.250  -0.9647   0.06841   0.06392  -0.0451   1.0000   0.0098
 -16.000  -0.9690   0.06482   0.06015  -0.0457   1.0000   0.0099
 -15.750  -0.9718   0.06170   0.05687  -0.0465   1.0000   0.0100
 -15.500  -0.9701   0.05886   0.05389  -0.0465   1.0000   0.0100
 -15.250  -0.9699   0.05577   0.05062  -0.0457   1.0000   0.0103
 -15.000  -0.9641   0.05359   0.04834  -0.0454   1.0000   0.0104
 -14.750  -0.9578   0.05154   0.04623  -0.0450   1.0000   0.0106
 -14.500  -0.9513   0.04963   0.04429  -0.0450   1.0000   0.0111
 -14.250  -0.9436   0.04780   0.04237  -0.0445   1.0000   0.0112
 -14.000  -0.9355   0.04607   0.04059  -0.0444   1.0000   0.0116
 -13.750  -0.9266   0.04442   0.03886  -0.0437   1.0000   0.0116
 -13.500  -0.9176   0.04284   0.03722  -0.0434   1.0000   0.0121
 -13.250  -0.9084   0.04129   0.03560  -0.0428   1.0000   0.0126
 -13.000  -0.8984   0.03985   0.03409  -0.0423   1.0000   0.0129
 -12.750  -0.8876   0.03849   0.03267  -0.0418   1.0000   0.0132
 -12.500  -0.8823   0.03674   0.03087  -0.0408   1.0000   0.0137
 -12.250  -0.8774   0.03501   0.02911  -0.0399   1.0000   0.0144
 -12.000  -0.8692   0.03354   0.02764  -0.0393   1.0000   0.0150
 -11.750  -0.8275   0.03191   0.02588  -0.0455   0.9228   0.0166
 -11.500  -0.8104   0.03083   0.02455  -0.0459   0.8798   0.0174
 -11.250  -0.8117   0.02915   0.02270  -0.0438   0.8574   0.0183
 -11.000  -0.8077   0.02780   0.02125  -0.0421   0.8426   0.0194
 -10.750  -0.7994   0.02671   0.02007  -0.0408   0.8315   0.0205
 -10.500  -0.7908   0.02565   0.01889  -0.0394   0.8220   0.0216
 -10.250  -0.7819   0.02458   0.01773  -0.0380   0.8135   0.0231
 -10.000  -0.7780   0.02329   0.01638  -0.0361   0.8060   0.0259
  -9.750  -0.7675   0.02234   0.01537  -0.0348   0.7990   0.0280
  -9.500  -0.7596   0.02131   0.01428  -0.0331   0.7927   0.0314
  -9.250  -0.7512   0.02032   0.01326  -0.0314   0.7872   0.0366
  -9.000  -0.7451   0.01923   0.01219  -0.0295   0.7814   0.0452
  -8.750  -0.7410   0.01813   0.01112  -0.0271   0.7762   0.0605
  -8.500  -0.7385   0.01699   0.01009  -0.0245   0.7710   0.0838
  -8.250  -0.7373   0.01588   0.00912  -0.0215   0.7658   0.1113
  -8.000  -0.7390   0.01481   0.00819  -0.0178   0.7614   0.1457
  -7.750  -0.7423   0.01383   0.00739  -0.0134   0.7571   0.1851
  -7.500  -0.7486   0.01297   0.00676  -0.0081   0.7524   0.2326
  -7.250  -0.7497   0.01198   0.00606  -0.0037   0.7483   0.2953
  -7.000  -0.7504   0.01092   0.00536   0.0006   0.7447   0.3754
  -6.750  -0.7410   0.01018   0.00494   0.0035   0.7410   0.4468
  -6.500  -0.7219   0.00986   0.00474   0.0048   0.7374   0.4886
  -6.250  -0.6988   0.00971   0.00460   0.0054   0.7341   0.5127
  -6.000  -0.6740   0.00965   0.00449   0.0058   0.7310   0.5312
  -5.750  -0.6486   0.00964   0.00443   0.0061   0.7279   0.5474
  -5.500  -0.6228   0.00965   0.00441   0.0064   0.7245   0.5624
  -5.250  -0.5960   0.00966   0.00441   0.0064   0.7214   0.5726
  -5.000  -0.5690   0.00968   0.00435   0.0064   0.7184   0.5809
  -4.750  -0.5420   0.00977   0.00437   0.0065   0.7156   0.5904
  -4.500  -0.5145   0.00986   0.00443   0.0064   0.7127   0.5984
  -4.250  -0.4870   0.00992   0.00445   0.0064   0.7095   0.6058
  -4.000  -0.4589   0.00994   0.00444   0.0062   0.7065   0.6115
  -3.750  -0.4303   0.00999   0.00446   0.0059   0.7037   0.6165
  -3.500  -0.4024   0.01001   0.00439   0.0057   0.7010   0.6212
  -3.250  -0.3740   0.01002   0.00432   0.0054   0.6983   0.6248
  -3.000  -0.3450   0.00998   0.00431   0.0049   0.6954   0.6278
  -2.750  -0.3162   0.00997   0.00428   0.0045   0.6924   0.6309
  -2.500  -0.2877   0.00995   0.00421   0.0041   0.6896   0.6342
  -2.250  -0.2595   0.00995   0.00412   0.0038   0.6869   0.6375
  -2.000  -0.2305   0.00991   0.00405   0.0034   0.6843   0.6401
  -1.750  -0.2015   0.00990   0.00405   0.0029   0.6816   0.6427
  -1.500  -0.1727   0.00988   0.00404   0.0025   0.6787   0.6454
  -1.250  -0.1440   0.00988   0.00402   0.0021   0.6758   0.6485
  -1.000  -0.1154   0.00988   0.00396   0.0017   0.6730   0.6517
  -0.750  -0.0866   0.00984   0.00389   0.0013   0.6705   0.6543
  -0.500  -0.0575   0.00987   0.00390   0.0008   0.6680   0.6566
  -0.250  -0.0287   0.00985   0.00394   0.0004   0.6652   0.6593
   0.000   0.0000   0.00985   0.00395   0.0000   0.6622   0.6623
   0.250   0.0287   0.00985   0.00394  -0.0004   0.6593   0.6653
   0.500   0.0575   0.00987   0.00390  -0.0008   0.6566   0.6680
   0.750   0.0866   0.00984   0.00389  -0.0013   0.6542   0.6705
   1.000   0.1154   0.00987   0.00396  -0.0017   0.6516   0.6731
   1.250   0.1440   0.00988   0.00402  -0.0021   0.6484   0.6759
   1.500   0.1727   0.00989   0.00404  -0.0025   0.6453   0.6788
   1.750   0.2015   0.00990   0.00405  -0.0029   0.6426   0.6817
   2.000   0.2305   0.00991   0.00405  -0.0034   0.6401   0.6844
   2.250   0.2594   0.00995   0.00412  -0.0038   0.6374   0.6869
   2.500   0.2877   0.00995   0.00421  -0.0041   0.6342   0.6896
   2.750   0.3162   0.00997   0.00428  -0.0045   0.6309   0.6924
   3.000   0.3450   0.00998   0.00431  -0.0049   0.6278   0.6954
   3.250   0.3740   0.01002   0.00433  -0.0054   0.6248   0.6983
   3.500   0.4023   0.01002   0.00440  -0.0057   0.6212   0.7010
   3.750   0.4302   0.00999   0.00446  -0.0059   0.6165   0.7037
   4.000   0.4588   0.00995   0.00445  -0.0062   0.6115   0.7065
   4.250   0.4870   0.00993   0.00445  -0.0064   0.6059   0.7096
   4.500   0.5144   0.00986   0.00443  -0.0064   0.5984   0.7128
   4.750   0.5419   0.00977   0.00437  -0.0065   0.5904   0.7157
   5.000   0.5689   0.00968   0.00435  -0.0064   0.5809   0.7184
   5.250   0.5960   0.00966   0.00441  -0.0064   0.5726   0.7214
   5.500   0.6228   0.00965   0.00441  -0.0064   0.5624   0.7246
   5.750   0.6485   0.00964   0.00443  -0.0061   0.5475   0.7280
   6.000   0.6740   0.00965   0.00449  -0.0058   0.5316   0.7311
   6.250   0.6988   0.00971   0.00461  -0.0055   0.5133   0.7341
   6.500   0.7218   0.00986   0.00474  -0.0048   0.4884   0.7375
   6.750   0.7406   0.01019   0.00494  -0.0034   0.4458   0.7410
   7.000   0.7499   0.01093   0.00536  -0.0006   0.3744   0.7447
   7.250   0.7501   0.01196   0.00605   0.0036   0.2970   0.7484
   7.500   0.7479   0.01299   0.00677   0.0082   0.2313   0.7525
   7.750   0.7420   0.01384   0.00739   0.0134   0.1847   0.7571
   8.000   0.7386   0.01483   0.00820   0.0178   0.1448   0.7614
   8.250   0.7374   0.01588   0.00911   0.0215   0.1114   0.7659
   8.500   0.7382   0.01700   0.01010   0.0245   0.0833   0.7711
   8.750   0.7415   0.01810   0.01110   0.0271   0.0610   0.7762
   9.000   0.7452   0.01922   0.01219   0.0295   0.0451   0.7814
   9.250   0.7511   0.02033   0.01327   0.0315   0.0365   0.7872
   9.500   0.7605   0.02126   0.01423   0.0330   0.0318   0.7928
   9.750   0.7669   0.02239   0.01542   0.0349   0.0286   0.7991
  10.000   0.7777   0.02331   0.01640   0.0362   0.0260   0.8061
  10.250   0.7840   0.02446   0.01762   0.0379   0.0236   0.8136
  10.500   0.7894   0.02575   0.01899   0.0395   0.0221   0.8221
  10.750   0.7996   0.02670   0.02007   0.0408   0.0206   0.8315
  11.000   0.8089   0.02772   0.02117   0.0420   0.0192   0.8427
  11.250   0.8127   0.02908   0.02264   0.0437   0.0183   0.8576
  11.500   0.8132   0.03066   0.02437   0.0457   0.0172   0.8799
  11.750   0.8290   0.03186   0.02583   0.0453   0.0164   0.9236
  12.000   0.8710   0.03344   0.02751   0.0391   0.0147   1.0000
  12.250   0.8789   0.03493   0.02902   0.0397   0.0143   1.0000
  12.500   0.8833   0.03670   0.03082   0.0407   0.0138   1.0000
  12.750   0.8881   0.03847   0.03264   0.0418   0.0133   1.0000
  13.000   0.8994   0.03980   0.03405   0.0422   0.0129   1.0000
  13.250   0.9094   0.04126   0.03558   0.0427   0.0122   1.0000
  13.500   0.9187   0.04279   0.03716   0.0432   0.0120   1.0000
  13.750   0.9279   0.04436   0.03880   0.0437   0.0118   1.0000
  14.000   0.9366   0.04602   0.04053   0.0441   0.0115   1.0000
  14.250   0.9446   0.04775   0.04231   0.0443   0.0110   1.0000
  14.500   0.9517   0.04959   0.04417   0.0444   0.0106   1.0000
  14.750   0.9592   0.05148   0.04618   0.0449   0.0107   1.0000
  15.000   0.9655   0.05351   0.04825   0.0452   0.0104   1.0000
  15.250   0.9709   0.05575   0.05060   0.0457   0.0102   1.0000
  15.500   0.9737   0.05850   0.05350   0.0463   0.0101   1.0000
  15.750   0.9706   0.06171   0.05689   0.0459   0.0099   1.0000
  16.000   0.9706   0.06481   0.06014   0.0458   0.0100   1.0000
  16.250   0.9661   0.06837   0.06387   0.0450   0.0098   1.0000
  16.500   0.9608   0.07221   0.06788   0.0442   0.0098   1.0000
  16.750   0.9517   0.07671   0.07257   0.0429   0.0097   1.0000
  17.000   0.9423   0.08143   0.07746   0.0414   0.0097   1.0000
  17.250   0.9286   0.08700   0.08323   0.0392   0.0096   1.0000
  17.500   0.9147   0.09282   0.08921   0.0369   0.0097   1.0000
  17.750   0.8964   0.09974   0.09634   0.0335   0.0096   1.0000
  18.000   0.8794   0.10672   0.10349   0.0299   0.0096   1.0000
  18.250   0.8609   0.11432   0.11125   0.0258   0.0097   1.0000
  18.500   0.8422   0.12248   0.11958   0.0211   0.0097   1.0000
  18.750   0.8121   0.13329   0.13055   0.0151   0.0099   1.0000
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