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NREL's S831 Airfoil (s831-nr) Xfoil prediction polar at RE=1,000,000 Ncrit=9


Details Polar file
Airfoil: NREL's S831 Airfoil (s831-nr)
Reynolds number: 1,000,000
Max Cl/Cd: 152.66 at α=6.5°
Description: Mach=0 Ncrit=9
Source: Xfoil prediction
Download polar: xf-s831-nr-1000000.txt
Download as CSV file: xf-s831-nr-1000000.csv

  
       XFOIL         Version 6.96
  
 Calculated polar for: NREL's S831 Airfoil                             
  
 1 1 Reynolds number fixed          Mach number fixed         
  
 xtrf =   1.000 (top)        1.000 (bottom)  
 Mach =   0.000     Re =     1.000 e 6     Ncrit =   9.000
  
   alpha    CL        CD       CDp       CM     Top_Xtr  Bot_Xtr
  ------ -------- --------- --------- -------- -------- --------
 -11.750   0.1329   0.08030   0.07748  -0.1593   0.7761   0.0086
 -11.500   0.1373   0.07720   0.07439  -0.1604   0.7735   0.0087
 -11.250   0.0999   0.08227   0.07935  -0.1752   0.7871   0.0084
 -11.000   0.1036   0.07971   0.07677  -0.1760   0.7834   0.0086
 -10.750   0.1038   0.07621   0.07326  -0.1773   0.7796   0.0086
 -10.500   0.1090   0.07399   0.07102  -0.1781   0.7763   0.0088
 -10.250   0.1087   0.07039   0.06744  -0.1797   0.7731   0.0088
 -10.000   0.1069   0.06661   0.06366  -0.1815   0.7696   0.0088
  -9.750   0.1076   0.06365   0.06070  -0.1831   0.7662   0.0091
  -9.500   0.0965   0.05867   0.05569  -0.1866   0.7626   0.0091
  -9.250   0.0753   0.05377   0.05077  -0.1885   0.7591   0.0090
  -9.000   0.0629   0.05100   0.04795  -0.1884   0.7555   0.0091
  -8.750   0.0470   0.04844   0.04531  -0.1871   0.7519   0.0091
  -8.500   0.0265   0.04618   0.04298  -0.1841   0.7484   0.0090
  -8.250   0.0221   0.04409   0.04082  -0.1825   0.7458   0.0092
  -8.000   0.0215   0.04197   0.03861  -0.1810   0.7432   0.0094
  -7.750   0.0235   0.03972   0.03625  -0.1794   0.7406   0.0096
  -7.500   0.0284   0.03745   0.03383  -0.1779   0.7381   0.0099
  -7.250   0.0358   0.03500   0.03120  -0.1764   0.7355   0.0103
  -7.000   0.0521   0.03236   0.02833  -0.1745   0.7336   0.0112
  -6.750   0.0648   0.03013   0.02590  -0.1728   0.7316   0.0113
  -6.500   0.0773   0.02790   0.02344  -0.1712   0.7295   0.0114
  -5.250   0.1673   0.01509   0.00930  -0.1656   0.7197   0.0084
  -5.000   0.1887   0.01325   0.00736  -0.1645   0.7183   0.0074
  -4.750   0.2101   0.01219   0.00619  -0.1635   0.7167   0.0069
  -4.500   0.2326   0.01151   0.00543  -0.1629   0.7150   0.0067
  -4.250   0.2563   0.01099   0.00483  -0.1627   0.7134   0.0066
  -4.000   0.2814   0.01058   0.00437  -0.1627   0.7118   0.0066
  -3.750   0.3075   0.01024   0.00397  -0.1629   0.7102   0.0069
  -3.500   0.3346   0.00998   0.00366  -0.1633   0.7086   0.0071
  -3.250   0.3629   0.00979   0.00340  -0.1639   0.7068   0.0079
  -3.000   0.3907   0.00951   0.00311  -0.1644   0.7053   0.0143
  -2.750   0.4178   0.00931   0.00301  -0.1648   0.7040   0.0332
  -2.500   0.4455   0.00920   0.00293  -0.1653   0.7026   0.0448
  -2.250   0.4734   0.00906   0.00283  -0.1658   0.7012   0.0624
  -2.000   0.5019   0.00719   0.00243  -0.1685   0.6998   0.5692
  -1.750   0.5307   0.00718   0.00253  -0.1691   0.6985   0.6244
  -1.500   0.5594   0.00725   0.00258  -0.1696   0.6971   0.6404
  -1.250   0.5884   0.00733   0.00261  -0.1702   0.6959   0.6500
  -1.000   0.6173   0.00740   0.00267  -0.1708   0.6945   0.6568
  -0.750   0.6470   0.00751   0.00272  -0.1716   0.6931   0.6624
  -0.500   0.6773   0.00762   0.00281  -0.1725   0.6915   0.6685
  -0.250   0.7049   0.00766   0.00286  -0.1728   0.6906   0.6721
   0.000   0.7326   0.00770   0.00290  -0.1732   0.6894   0.6757
   0.250   0.7607   0.00774   0.00292  -0.1736   0.6882   0.6775
   0.500   0.7889   0.00778   0.00295  -0.1742   0.6869   0.6792
   0.750   0.8172   0.00780   0.00297  -0.1747   0.6856   0.6812
   1.000   0.8455   0.00783   0.00301  -0.1753   0.6844   0.6831
   1.250   0.8740   0.00787   0.00306  -0.1759   0.6832   0.6851
   1.500   0.9025   0.00793   0.00312  -0.1764   0.6821   0.6872
   1.750   0.9311   0.00799   0.00318  -0.1771   0.6810   0.6894
   2.000   0.9601   0.00806   0.00325  -0.1778   0.6798   0.6916
   2.250   0.9901   0.00817   0.00334  -0.1788   0.6784   0.6936
   2.500   1.0202   0.00829   0.00346  -0.1798   0.6770   0.6954
   2.750   1.0466   0.00831   0.00354  -0.1799   0.6761   0.6977
   3.000   1.0735   0.00836   0.00363  -0.1802   0.6751   0.6999
   3.250   1.1005   0.00842   0.00375  -0.1805   0.6740   0.7020
   3.500   1.1277   0.00849   0.00386  -0.1809   0.6728   0.7043
   3.750   1.1550   0.00857   0.00396  -0.1813   0.6716   0.7068
   4.000   1.1825   0.00864   0.00407  -0.1817   0.6702   0.7092
   4.250   1.2102   0.00870   0.00417  -0.1822   0.6690   0.7115
   4.500   1.2382   0.00877   0.00428  -0.1828   0.6679   0.7140
   4.750   1.2658   0.00883   0.00439  -0.1832   0.6663   0.7163
   5.000   1.2901   0.00887   0.00444  -0.1829   0.6615   0.7187
   5.250   1.3015   0.00874   0.00436  -0.1797   0.6545   0.7215
   5.500   1.3181   0.00874   0.00433  -0.1776   0.6474   0.7241
   5.750   1.3244   0.00873   0.00439  -0.1734   0.6415   0.7269
   6.000   1.3420   0.00880   0.00450  -0.1717   0.6368   0.7298
   6.250   1.3608   0.00892   0.00467  -0.1703   0.6324   0.7327
   6.500   1.3785   0.00903   0.00485  -0.1687   0.6283   0.7358
   6.750   1.3963   0.00917   0.00503  -0.1671   0.6234   0.7388
   7.000   1.4128   0.00934   0.00524  -0.1653   0.6173   0.7415
   7.250   1.4285   0.00950   0.00547  -0.1634   0.6101   0.7447
   7.500   1.4423   0.00974   0.00576  -0.1611   0.6015   0.7478
   7.750   1.4527   0.01008   0.00611  -0.1582   0.5894   0.7512
   8.000   1.4600   0.01055   0.00658  -0.1548   0.5713   0.7548
   8.250   1.4562   0.01139   0.00733  -0.1495   0.5425   0.7584
   8.500   1.4349   0.01299   0.00875  -0.1413   0.4980   0.7624
   8.750   1.4050   0.01532   0.01083  -0.1324   0.4497   0.7665
   9.000   1.3840   0.01763   0.01295  -0.1255   0.4081   0.7704
   9.250   1.3579   0.02047   0.01556  -0.1184   0.3603   0.7742
   9.500   1.3413   0.02303   0.01795  -0.1130   0.3186   0.7780
   9.750   1.3288   0.02551   0.02024  -0.1085   0.2793   0.7819
  10.000   1.3205   0.02786   0.02242  -0.1048   0.2439   0.7859
  10.250   1.3154   0.03006   0.02448  -0.1016   0.2101   0.7898
  10.500   1.3143   0.03206   0.02636  -0.0990   0.1810   0.7939
  10.750   1.3144   0.03407   0.02823  -0.0966   0.1534   0.7980
  11.000   1.3168   0.03594   0.03000  -0.0946   0.1310   0.8020
  11.250   1.3181   0.03792   0.03186  -0.0925   0.1049   0.8061
  11.500   1.3221   0.03977   0.03362  -0.0908   0.0844   0.8107
  11.750   1.3291   0.04141   0.03520  -0.0895   0.0704   0.8155
  12.500   1.3521   0.04631   0.03999  -0.0859   0.0366   0.8314
  12.750   1.3600   0.04796   0.04164  -0.0848   0.0288   0.8374
  13.000   1.3701   0.04947   0.04318  -0.0840   0.0240   0.8441
  13.250   1.3793   0.05104   0.04478  -0.0831   0.0191   0.8513
  13.500   1.3878   0.05270   0.04646  -0.0822   0.0151   0.8601
  13.750   1.3955   0.05443   0.04823  -0.0812   0.0117   0.8715
  14.000   1.4044   0.05598   0.04987  -0.0803   0.0092   0.8894
  14.250   1.4118   0.05742   0.05149  -0.0792   0.0076   1.0000
  14.500   1.4192   0.05939   0.05349  -0.0785   0.0055   1.0000
  14.750   1.4226   0.06179   0.05589  -0.0775   0.0027   1.0000
  15.000   1.4303   0.06374   0.05792  -0.0769   0.0022   1.0000
  15.250   1.4368   0.06588   0.06012  -0.0763   0.0018   1.0000
  15.500   1.4425   0.06812   0.06244  -0.0757   0.0016   1.0000
  15.750   1.4462   0.07066   0.06507  -0.0750   0.0014   1.0000
  16.000   1.4530   0.07286   0.06735  -0.0746   0.0014   1.0000
  16.250   1.4579   0.07530   0.06989  -0.0742   0.0013   1.0000
  16.500   1.4622   0.07786   0.07253  -0.0739   0.0012   1.0000
  16.750   1.4658   0.08053   0.07529  -0.0735   0.0012   1.0000
  17.000   1.4684   0.08339   0.07825  -0.0733   0.0012   1.0000
  17.250   1.4713   0.08623   0.08118  -0.0732   0.0011   1.0000
  17.500   1.4726   0.08933   0.08439  -0.0731   0.0011   1.0000
  17.750   1.4735   0.09250   0.08766  -0.0731   0.0011   1.0000
  18.000   1.4739   0.09578   0.09103  -0.0732   0.0010   1.0000
  18.250   1.4725   0.09938   0.09474  -0.0735   0.0010   1.0000
  18.500   1.4719   0.10290   0.09837  -0.0739   0.0010   1.0000
  18.750   1.4717   0.10639   0.10195  -0.0744   0.0009   1.0000
  19.000   1.4675   0.11054   0.10622  -0.0751   0.0009   1.0000
  19.250   1.4646   0.11451   0.11030  -0.0759   0.0009   1.0000
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