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EPPLER E837 HYDROFOIL AIRFOIL (e837-il) Xfoil prediction polar at RE=500,000 Ncrit=9


Details Polar file
Airfoil: EPPLER E837 HYDROFOIL AIRFOIL (e837-il)
Reynolds number: 500,000
Max Cl/Cd: 70.62 at α=6°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-e837-il-500000.txt
Download as CSV file: xf-e837-il-500000.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 =     0.500 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -17.750  -0.8092   0.13571   0.13317  -0.0018   1.0000   0.0100
 -17.500  -0.8439   0.12247   0.11975  -0.0097   1.0000   0.0097
 -17.250  -0.8741   0.11135   0.10842  -0.0162   1.0000   0.0094
 -17.000  -0.8945   0.10284   0.09974  -0.0212   1.0000   0.0094
 -16.750  -0.9084   0.09604   0.09280  -0.0252   1.0000   0.0095
 -16.500  -0.9319   0.08792   0.08446  -0.0293   1.0000   0.0094
 -16.250  -0.9452   0.08199   0.07837  -0.0323   1.0000   0.0094
 -16.000  -0.9610   0.07594   0.07212  -0.0348   1.0000   0.0094
 -15.750  -0.9721   0.07093   0.06693  -0.0367   1.0000   0.0094
 -15.500  -0.9801   0.06657   0.06241  -0.0382   1.0000   0.0096
 -15.250  -0.9863   0.06260   0.05828  -0.0393   1.0000   0.0096
 -15.000  -0.9913   0.05894   0.05446  -0.0400   1.0000   0.0096
 -14.750  -0.9952   0.05551   0.05086  -0.0404   1.0000   0.0098
 -14.500  -0.9968   0.05245   0.04764  -0.0405   1.0000   0.0098
 -14.250  -0.9955   0.04980   0.04485  -0.0405   1.0000   0.0098
 -14.000  -0.9936   0.04729   0.04219  -0.0403   1.0000   0.0101
 -13.750  -0.9901   0.04499   0.03975  -0.0399   1.0000   0.0103
 -13.500  -0.9852   0.04305   0.03768  -0.0397   1.0000   0.0105
 -13.250  -0.9782   0.04112   0.03565  -0.0390   1.0000   0.0105
 -13.000  -0.9748   0.03878   0.03319  -0.0379   1.0000   0.0110
 -12.750  -0.9692   0.03690   0.03122  -0.0370   1.0000   0.0111
 -12.500  -0.9637   0.03510   0.02939  -0.0361   1.0000   0.0115
 -12.250  -0.9567   0.03348   0.02771  -0.0353   1.0000   0.0117
 -12.000  -0.9487   0.03198   0.02617  -0.0345   1.0000   0.0121
 -11.750  -0.9404   0.03054   0.02467  -0.0337   1.0000   0.0124
 -11.500  -0.9321   0.02914   0.02321  -0.0327   1.0000   0.0130
 -11.250  -0.9228   0.02783   0.02183  -0.0317   1.0000   0.0135
 -11.000  -0.9107   0.02678   0.02071  -0.0309   1.0000   0.0141
 -10.750  -0.9038   0.02536   0.01924  -0.0296   1.0000   0.0144
 -10.500  -0.9053   0.02344   0.01727  -0.0275   1.0000   0.0155
 -10.250  -0.8959   0.02233   0.01614  -0.0263   1.0000   0.0163
 -10.000  -0.8856   0.02132   0.01510  -0.0249   1.0000   0.0176
  -9.750  -0.8741   0.02043   0.01416  -0.0236   1.0000   0.0186
  -9.500  -0.8653   0.01904   0.01272  -0.0226   0.9749   0.0201
  -9.250  -0.8292   0.01787   0.01144  -0.0263   0.9255   0.0236
  -9.000  -0.8198   0.01717   0.01056  -0.0240   0.8897   0.0260
  -8.750  -0.8135   0.01651   0.00980  -0.0209   0.8686   0.0299
  -8.500  -0.8062   0.01589   0.00911  -0.0178   0.8532   0.0358
  -8.250  -0.7996   0.01528   0.00850  -0.0145   0.8406   0.0467
  -8.000  -0.7901   0.01457   0.00786  -0.0118   0.8305   0.0681
  -7.750  -0.7788   0.01386   0.00727  -0.0095   0.8218   0.0983
  -7.500  -0.7652   0.01316   0.00673  -0.0076   0.8132   0.1328
  -7.250  -0.7511   0.01248   0.00621  -0.0057   0.8062   0.1739
  -7.000  -0.7357   0.01176   0.00570  -0.0041   0.7989   0.2205
  -6.750  -0.7196   0.01109   0.00521  -0.0025   0.7927   0.2720
  -6.500  -0.7029   0.01039   0.00476  -0.0010   0.7864   0.3277
  -6.250  -0.6847   0.00980   0.00438   0.0004   0.7805   0.3826
  -6.000  -0.6638   0.00940   0.00412   0.0013   0.7755   0.4291
  -5.750  -0.6407   0.00911   0.00393   0.0020   0.7699   0.4683
  -5.500  -0.6165   0.00894   0.00381   0.0026   0.7647   0.4999
  -5.250  -0.5905   0.00887   0.00370   0.0028   0.7602   0.5205
  -5.000  -0.5636   0.00880   0.00361   0.0029   0.7552   0.5359
  -4.750  -0.5368   0.00876   0.00353   0.0030   0.7504   0.5500
  -4.250  -0.4820   0.00871   0.00341   0.0031   0.7415   0.5710
  -4.000  -0.4542   0.00871   0.00334   0.0030   0.7370   0.5806
  -3.750  -0.4265   0.00870   0.00330   0.0030   0.7329   0.5886
  -3.500  -0.3985   0.00872   0.00325   0.0029   0.7287   0.5969
  -3.250  -0.3703   0.00869   0.00323   0.0027   0.7241   0.6034
  -3.000  -0.3422   0.00871   0.00316   0.0026   0.7200   0.6104
  -2.750  -0.3139   0.00871   0.00314   0.0025   0.7163   0.6161
  -2.500  -0.2856   0.00872   0.00312   0.0023   0.7119   0.6228
  -2.250  -0.2572   0.00870   0.00309   0.0021   0.7076   0.6285
  -2.000  -0.2287   0.00871   0.00307   0.0019   0.7037   0.6338
  -1.750  -0.2004   0.00875   0.00304   0.0017   0.7000   0.6395
  -1.500  -0.1718   0.00871   0.00303   0.0015   0.6956   0.6442
  -1.250  -0.1432   0.00871   0.00303   0.0012   0.6915   0.6490
  -1.000  -0.1146   0.00874   0.00299   0.0010   0.6877   0.6542
  -0.750  -0.0860   0.00873   0.00298   0.0008   0.6838   0.6585
  -0.500  -0.0573   0.00871   0.00300   0.0005   0.6794   0.6626
  -0.250  -0.0287   0.00872   0.00298   0.0003   0.6752   0.6672
   0.000   0.0000   0.00874   0.00295   0.0000   0.6715   0.6715
   0.250   0.0286   0.00872   0.00298  -0.0003   0.6672   0.6752
   0.500   0.0573   0.00871   0.00300  -0.0005   0.6626   0.6794
   0.750   0.0860   0.00873   0.00298  -0.0008   0.6585   0.6838
   1.000   0.1146   0.00873   0.00299  -0.0010   0.6542   0.6877
   1.250   0.1431   0.00871   0.00303  -0.0012   0.6490   0.6914
   1.500   0.1717   0.00871   0.00303  -0.0015   0.6441   0.6956
   1.750   0.2003   0.00875   0.00304  -0.0017   0.6395   0.7000
   2.000   0.2287   0.00871   0.00307  -0.0019   0.6338   0.7038
   2.250   0.2572   0.00870   0.00309  -0.0021   0.6285   0.7076
   2.500   0.2856   0.00872   0.00312  -0.0023   0.6228   0.7119
   2.750   0.3139   0.00871   0.00314  -0.0025   0.6161   0.7163
   3.000   0.3422   0.00871   0.00316  -0.0026   0.6104   0.7200
   3.250   0.3703   0.00869   0.00323  -0.0027   0.6034   0.7241
   3.500   0.3985   0.00872   0.00325  -0.0029   0.5969   0.7287
   3.750   0.4264   0.00870   0.00330  -0.0030   0.5887   0.7329
   4.000   0.4542   0.00871   0.00334  -0.0030   0.5806   0.7370
   4.250   0.4819   0.00871   0.00341  -0.0030   0.5711   0.7415
   4.750   0.5367   0.00876   0.00353  -0.0030   0.5501   0.7504
   5.000   0.5636   0.00880   0.00361  -0.0029   0.5359   0.7551
   5.250   0.5904   0.00887   0.00370  -0.0028   0.5208   0.7602
   5.500   0.6164   0.00894   0.00380  -0.0025   0.4996   0.7648
   5.750   0.6407   0.00911   0.00393  -0.0020   0.4683   0.7699
   6.000   0.6638   0.00940   0.00412  -0.0013   0.4293   0.7755
   6.250   0.6846   0.00980   0.00438  -0.0003   0.3825   0.7805
   6.500   0.7027   0.01040   0.00476   0.0010   0.3269   0.7865
   6.750   0.7196   0.01109   0.00521   0.0025   0.2721   0.7927
   7.000   0.7355   0.01176   0.00570   0.0041   0.2201   0.7989
   7.250   0.7512   0.01247   0.00620   0.0057   0.1744   0.8061
   7.500   0.7651   0.01316   0.00673   0.0076   0.1325   0.8132
   7.750   0.7786   0.01387   0.00728   0.0095   0.0976   0.8217
   8.000   0.7901   0.01457   0.00786   0.0118   0.0681   0.8304
   8.250   0.7992   0.01530   0.00851   0.0146   0.0460   0.8407
   8.500   0.8062   0.01589   0.00910   0.0178   0.0357   0.8533
   8.750   0.8137   0.01650   0.00979   0.0208   0.0300   0.8687
   9.000   0.8201   0.01715   0.01054   0.0239   0.0261   0.8897
   9.250   0.8294   0.01786   0.01144   0.0263   0.0235   0.9256
   9.500   0.8658   0.01901   0.01269   0.0225   0.0201   0.9747
   9.750   0.8751   0.02039   0.01412   0.0235   0.0186   1.0000
  10.000   0.8860   0.02131   0.01509   0.0249   0.0176   1.0000
  10.250   0.8970   0.02227   0.01608   0.0261   0.0164   1.0000
  10.500   0.9053   0.02346   0.01729   0.0275   0.0156   1.0000
  10.750   0.9052   0.02528   0.01916   0.0294   0.0144   1.0000
  11.000   0.9146   0.02650   0.02044   0.0305   0.0139   1.0000
  11.250   0.9244   0.02773   0.02174   0.0316   0.0134   1.0000
  11.500   0.9328   0.02911   0.02318   0.0326   0.0130   1.0000
  11.750   0.9411   0.03053   0.02466   0.0336   0.0125   1.0000
  12.000   0.9500   0.03191   0.02609   0.0344   0.0120   1.0000
  12.250   0.9573   0.03348   0.02770   0.0352   0.0117   1.0000
  12.500   0.9643   0.03510   0.02937   0.0361   0.0115   1.0000
  12.750   0.9689   0.03699   0.03131   0.0369   0.0110   1.0000
  13.000   0.9749   0.03887   0.03328   0.0379   0.0109   1.0000
  13.250   0.9796   0.04112   0.03564   0.0390   0.0106   1.0000
  13.500   0.9861   0.04297   0.03761   0.0394   0.0105   1.0000
  13.750   0.9911   0.04499   0.03976   0.0398   0.0102   1.0000
  14.000   0.9950   0.04730   0.04220   0.0403   0.0102   1.0000
  14.250   0.9965   0.04976   0.04481   0.0403   0.0098   1.0000
  14.500   0.9980   0.05242   0.04761   0.0405   0.0099   1.0000
  14.750   0.9964   0.05551   0.05086   0.0404   0.0099   1.0000
  15.000   0.9928   0.05887   0.05439   0.0399   0.0097   1.0000
  15.250   0.9871   0.06262   0.05830   0.0392   0.0096   1.0000
  15.500   0.9809   0.06658   0.06243   0.0381   0.0096   1.0000
  15.750   0.9690   0.07154   0.06758   0.0365   0.0095   1.0000
  16.000   0.9592   0.07638   0.07259   0.0346   0.0094   1.0000
  16.250   0.9468   0.08189   0.07826   0.0321   0.0094   1.0000
  16.500   0.9367   0.08728   0.08379   0.0294   0.0092   1.0000
  16.750   0.9176   0.09454   0.09124   0.0256   0.0093   1.0000
  17.000   0.8929   0.10335   0.10027   0.0208   0.0096   1.0000
  17.250   0.8763   0.11113   0.10820   0.0162   0.0093   1.0000
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