NACA 2421 (naca2421-il) Xfoil prediction polar at RE=1,000,000 Ncrit=9
| Details | Polar file |
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Airfoil: NACA 2421 (naca2421-il) Reynolds number: 1,000,000 Max Cl/Cd: 89.47 at α=7.5° Description: Mach=0 Ncrit=9 Source: Xfoil prediction Download polar: xf-naca2421-il-1000000.txt Download as CSV file: xf-naca2421-il-1000000.csv |
XFOIL Version 6.96
Calculated polar for: NACA 2421
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
------ -------- --------- --------- -------- -------- --------
-19.750 -1.2049 0.07395 0.06962 -0.0689 1.0000 0.0531
-19.500 -1.2117 0.06993 0.06551 -0.0705 1.0000 0.0535
-19.250 -1.2217 0.06561 0.06110 -0.0722 1.0000 0.0541
-19.000 -1.2371 0.06071 0.05613 -0.0740 1.0000 0.0547
-18.750 -1.2482 0.05639 0.05174 -0.0755 1.0000 0.0554
-18.500 -1.2557 0.05258 0.04786 -0.0768 1.0000 0.0560
-18.250 -1.2601 0.04919 0.04441 -0.0778 1.0000 0.0567
-18.000 -1.2616 0.04619 0.04134 -0.0786 1.0000 0.0573
-17.750 -1.2610 0.04351 0.03859 -0.0792 1.0000 0.0580
-17.500 -1.2583 0.04111 0.03612 -0.0797 1.0000 0.0586
-17.250 -1.2533 0.03898 0.03391 -0.0800 1.0000 0.0592
-17.000 -1.2585 0.03598 0.03086 -0.0802 1.0000 0.0601
-16.750 -1.2579 0.03366 0.02850 -0.0802 1.0000 0.0609
-16.500 -1.2542 0.03173 0.02652 -0.0799 1.0000 0.0618
-16.250 -1.2492 0.03005 0.02481 -0.0793 1.0000 0.0627
-16.000 -1.2434 0.02862 0.02333 -0.0784 1.0000 0.0635
-15.750 -1.2378 0.02740 0.02206 -0.0771 1.0000 0.0643
-15.500 -1.2337 0.02630 0.02090 -0.0753 1.0000 0.0650
-15.250 -1.2397 0.02492 0.01950 -0.0722 1.0000 0.0661
-15.000 -1.2461 0.02389 0.01844 -0.0684 1.0000 0.0669
-14.750 -1.2550 0.02307 0.01759 -0.0638 1.0000 0.0677
-14.500 -1.2335 0.02214 0.01664 -0.0645 0.9987 0.0691
-14.250 -1.2079 0.02138 0.01584 -0.0655 0.9971 0.0704
-14.000 -1.1830 0.02054 0.01497 -0.0666 0.9952 0.0718
-13.750 -1.1584 0.01965 0.01408 -0.0676 0.9935 0.0736
-13.500 -1.1310 0.01895 0.01337 -0.0689 0.9923 0.0754
-13.250 -1.1034 0.01839 0.01277 -0.0698 0.9905 0.0771
-13.000 -1.0794 0.01772 0.01209 -0.0701 0.9871 0.0791
-12.750 -1.0526 0.01706 0.01145 -0.0710 0.9846 0.0813
-12.500 -1.0224 0.01653 0.01090 -0.0722 0.9827 0.0836
-12.250 -0.9923 0.01599 0.01035 -0.0734 0.9804 0.0858
-12.000 -0.9670 0.01542 0.00980 -0.0736 0.9762 0.0885
-11.750 -0.9457 0.01498 0.00935 -0.0727 0.9691 0.0910
-11.500 -0.9221 0.01455 0.00890 -0.0722 0.9638 0.0936
-11.250 -0.9062 0.01414 0.00850 -0.0703 0.9555 0.0966
-11.000 -0.8863 0.01380 0.00814 -0.0689 0.9487 0.0995
-10.750 -0.8690 0.01351 0.00783 -0.0670 0.9408 0.1026
-10.500 -0.8490 0.01317 0.00750 -0.0656 0.9333 0.1064
-10.250 -0.8261 0.01293 0.00723 -0.0647 0.9266 0.1097
-10.000 -0.8051 0.01260 0.00692 -0.0635 0.9185 0.1143
-9.500 -0.7586 0.01209 0.00640 -0.0619 0.9032 0.1229
-9.250 -0.7345 0.01186 0.00616 -0.0611 0.8954 0.1274
-9.000 -0.7098 0.01166 0.00594 -0.0605 0.8879 0.1313
-8.750 -0.6857 0.01142 0.00570 -0.0598 0.8789 0.1362
-8.500 -0.6600 0.01126 0.00550 -0.0594 0.8706 0.1402
-8.250 -0.6353 0.01103 0.00528 -0.0588 0.8620 0.1448
-8.000 -0.6101 0.01085 0.00508 -0.0582 0.8530 0.1494
-7.750 -0.5836 0.01072 0.00492 -0.0579 0.8441 0.1529
-7.500 -0.5588 0.01050 0.00469 -0.0573 0.8340 0.1585
-7.250 -0.5329 0.01033 0.00452 -0.0569 0.8249 0.1633
-7.000 -0.5068 0.01019 0.00435 -0.0564 0.8147 0.1681
-6.750 -0.4813 0.01000 0.00417 -0.0559 0.8048 0.1745
-6.500 -0.4549 0.00988 0.00402 -0.0556 0.7941 0.1799
-6.250 -0.4295 0.00970 0.00385 -0.0551 0.7839 0.1882
-6.000 -0.4033 0.00956 0.00371 -0.0547 0.7729 0.1964
-5.750 -0.3774 0.00942 0.00357 -0.0542 0.7620 0.2066
-5.500 -0.3516 0.00928 0.00344 -0.0537 0.7498 0.2173
-5.250 -0.3249 0.00919 0.00334 -0.0534 0.7383 0.2271
-5.000 -0.2989 0.00908 0.00324 -0.0530 0.7263 0.2380
-4.750 -0.2719 0.00899 0.00315 -0.0527 0.7159 0.2469
-4.500 -0.2454 0.00892 0.00306 -0.0523 0.7044 0.2561
-4.250 -0.2180 0.00885 0.00299 -0.0521 0.6942 0.2638
-4.000 -0.1914 0.00878 0.00291 -0.0518 0.6833 0.2726
-3.750 -0.1636 0.00875 0.00286 -0.0516 0.6735 0.2792
-3.500 -0.1372 0.00867 0.00278 -0.0512 0.6625 0.2889
-3.250 -0.1097 0.00863 0.00273 -0.0511 0.6523 0.2972
-3.000 -0.0831 0.00858 0.00267 -0.0507 0.6408 0.3063
-2.750 -0.0559 0.00854 0.00263 -0.0505 0.6301 0.3150
-2.500 -0.0291 0.00852 0.00258 -0.0501 0.6186 0.3236
-2.250 -0.0020 0.00846 0.00254 -0.0499 0.6088 0.3337
-2.000 0.0250 0.00845 0.00251 -0.0496 0.5983 0.3431
-1.750 0.0519 0.00839 0.00248 -0.0493 0.5891 0.3558
-1.500 0.0788 0.00835 0.00245 -0.0490 0.5794 0.3691
-1.000 0.1326 0.00827 0.00242 -0.0485 0.5616 0.3997
-0.750 0.1584 0.00826 0.00242 -0.0480 0.5513 0.4182
-0.500 0.1856 0.00819 0.00241 -0.0478 0.5424 0.4380
-0.250 0.2115 0.00819 0.00242 -0.0473 0.5323 0.4572
0.000 0.2388 0.00815 0.00243 -0.0471 0.5245 0.4769
0.250 0.2654 0.00813 0.00245 -0.0468 0.5160 0.4974
0.500 0.2918 0.00814 0.00248 -0.0464 0.5078 0.5176
0.750 0.3191 0.00811 0.00251 -0.0462 0.4998 0.5385
1.250 0.3722 0.00812 0.00259 -0.0455 0.4834 0.5786
1.500 0.3990 0.00813 0.00264 -0.0452 0.4759 0.5958
1.750 0.4251 0.00819 0.00270 -0.0447 0.4674 0.6114
2.000 0.4528 0.00820 0.00274 -0.0446 0.4603 0.6272
2.250 0.4788 0.00824 0.00281 -0.0441 0.4518 0.6431
2.500 0.5055 0.00829 0.00288 -0.0438 0.4445 0.6579
2.750 0.5323 0.00833 0.00294 -0.0435 0.4366 0.6739
3.000 0.5574 0.00841 0.00303 -0.0429 0.4275 0.6907
3.250 0.5843 0.00843 0.00311 -0.0427 0.4202 0.7079
3.500 0.6096 0.00851 0.00321 -0.0421 0.4114 0.7269
4.000 0.6608 0.00865 0.00342 -0.0410 0.3951 0.7667
4.250 0.6853 0.00875 0.00354 -0.0403 0.3864 0.7863
4.500 0.7105 0.00883 0.00366 -0.0397 0.3778 0.8056
4.750 0.7340 0.00897 0.00382 -0.0388 0.3687 0.8253
5.000 0.7592 0.00905 0.00395 -0.0382 0.3616 0.8448
5.250 0.7825 0.00920 0.00411 -0.0372 0.3536 0.8633
5.500 0.8060 0.00933 0.00427 -0.0363 0.3470 0.8811
5.750 0.8277 0.00945 0.00443 -0.0349 0.3397 0.8986
6.000 0.8463 0.00965 0.00463 -0.0330 0.3315 0.9176
6.250 0.8680 0.00979 0.00481 -0.0315 0.3258 0.9361
6.500 0.8882 0.01001 0.00504 -0.0299 0.3180 0.9522
6.750 0.9107 0.01025 0.00526 -0.0288 0.3103 0.9650
7.000 0.9357 0.01049 0.00548 -0.0283 0.3019 0.9758
7.250 0.9667 0.01081 0.00575 -0.0292 0.2922 0.9819
7.500 0.9976 0.01115 0.00603 -0.0301 0.2806 0.9878
7.750 1.0292 0.01151 0.00633 -0.0313 0.2674 0.9919
8.000 1.0624 0.01195 0.00668 -0.0329 0.2522 0.9941
8.250 1.0943 0.01240 0.00705 -0.0343 0.2395 0.9968
8.500 1.1248 0.01289 0.00746 -0.0355 0.2284 0.9996
8.750 1.1321 0.01309 0.00766 -0.0318 0.2231 1.0000
9.000 1.1372 0.01339 0.00793 -0.0278 0.2172 1.0000
9.250 1.1491 0.01373 0.00824 -0.0252 0.2114 1.0000
9.500 1.1649 0.01408 0.00858 -0.0233 0.2062 1.0000
9.750 1.1800 0.01455 0.00902 -0.0215 0.2002 1.0000
10.000 1.1978 0.01495 0.00942 -0.0202 0.1954 1.0000
10.250 1.2156 0.01539 0.00985 -0.0189 0.1900 1.0000
10.500 1.2307 0.01599 0.01040 -0.0173 0.1838 1.0000
10.750 1.2498 0.01642 0.01085 -0.0163 0.1794 1.0000
11.000 1.2662 0.01700 0.01140 -0.0151 0.1736 1.0000
11.250 1.2823 0.01762 0.01201 -0.0138 0.1684 1.0000
11.500 1.2995 0.01821 0.01260 -0.0128 0.1631 1.0000
11.750 1.3130 0.01901 0.01337 -0.0114 0.1573 1.0000
12.000 1.3299 0.01965 0.01401 -0.0104 0.1524 1.0000
12.250 1.3426 0.02054 0.01488 -0.0091 0.1467 1.0000
12.500 1.3575 0.02134 0.01568 -0.0080 0.1418 1.0000
12.750 1.3695 0.02234 0.01667 -0.0068 0.1364 1.0000
13.000 1.3824 0.02331 0.01763 -0.0057 0.1319 1.0000
13.250 1.3942 0.02438 0.01870 -0.0046 0.1274 1.0000
13.500 1.4039 0.02562 0.01994 -0.0034 0.1230 1.0000
13.750 1.4164 0.02671 0.02105 -0.0026 0.1193 1.0000
14.000 1.4250 0.02812 0.02245 -0.0015 0.1153 1.0000
14.250 1.4349 0.02945 0.02381 -0.0006 0.1119 1.0000
14.500 1.4442 0.03089 0.02526 0.0002 0.1083 1.0000
14.750 1.4498 0.03267 0.02704 0.0011 0.1046 1.0000
15.000 1.4596 0.03413 0.02854 0.0017 0.1015 1.0000
15.250 1.4657 0.03594 0.03037 0.0024 0.0982 1.0000
15.500 1.4698 0.03799 0.03243 0.0031 0.0950 1.0000
15.750 1.4774 0.03975 0.03423 0.0035 0.0921 1.0000
16.000 1.4805 0.04197 0.03646 0.0040 0.0891 1.0000
16.250 1.4835 0.04425 0.03877 0.0044 0.0864 1.0000
16.500 1.4874 0.04647 0.04103 0.0048 0.0837 1.0000
16.750 1.4874 0.04910 0.04369 0.0050 0.0809 1.0000
17.000 1.4890 0.05166 0.04629 0.0052 0.0786 1.0000
17.250 1.4895 0.05435 0.04903 0.0053 0.0762 1.0000
17.500 1.4867 0.05741 0.05212 0.0053 0.0740 1.0000
17.750 1.4860 0.06029 0.05504 0.0052 0.0720 1.0000
18.000 1.4845 0.06334 0.05815 0.0050 0.0701 1.0000
18.250 1.4799 0.06674 0.06159 0.0048 0.0683 1.0000
18.500 1.4737 0.07034 0.06523 0.0045 0.0665 1.0000
18.750 1.4721 0.07349 0.06846 0.0040 0.0651 1.0000
19.000 1.4676 0.07700 0.07202 0.0035 0.0637 1.0000
19.250 1.4617 0.08072 0.07578 0.0029 0.0623 1.0000
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