NACA 2421 (naca2421-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5
| Details | Polar file |
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Airfoil: NACA 2421 (naca2421-il) Reynolds number: 1,000,000 Max Cl/Cd: 81.15 at α=6.5° Description: Mach=0 Ncrit=5 Source: Xfoil prediction Download polar: xf-naca2421-il-1000000-n5.txt Download as CSV file: xf-naca2421-il-1000000-n5.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 = 5.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-19.750 -1.2239 0.07174 0.06721 -0.0695 1.0000 0.0449
-19.500 -1.2384 0.06678 0.06217 -0.0715 1.0000 0.0454
-19.250 -1.2503 0.06225 0.05754 -0.0732 1.0000 0.0459
-19.000 -1.2594 0.05812 0.05333 -0.0747 1.0000 0.0464
-18.750 -1.2663 0.05433 0.04946 -0.0760 1.0000 0.0469
-18.500 -1.2710 0.05088 0.04594 -0.0771 1.0000 0.0475
-18.250 -1.2734 0.04773 0.04271 -0.0780 1.0000 0.0480
-18.000 -1.2740 0.04487 0.03977 -0.0788 1.0000 0.0485
-17.750 -1.2738 0.04217 0.03701 -0.0793 1.0000 0.0489
-17.500 -1.2746 0.03944 0.03422 -0.0798 1.0000 0.0495
-17.250 -1.2735 0.03700 0.03172 -0.0801 1.0000 0.0502
-17.000 -1.2707 0.03482 0.02949 -0.0801 1.0000 0.0508
-16.750 -1.2663 0.03288 0.02750 -0.0800 1.0000 0.0515
-16.500 -1.2607 0.03115 0.02572 -0.0797 1.0000 0.0522
-16.250 -1.2546 0.02961 0.02414 -0.0790 1.0000 0.0529
-16.000 -1.2486 0.02824 0.02272 -0.0781 1.0000 0.0535
-15.750 -1.2454 0.02692 0.02136 -0.0765 1.0000 0.0542
-15.500 -1.2448 0.02568 0.02009 -0.0743 1.0000 0.0550
-15.250 -1.2330 0.02450 0.01888 -0.0739 0.9988 0.0560
-15.000 -1.2131 0.02341 0.01776 -0.0746 0.9967 0.0572
-14.750 -1.1912 0.02246 0.01677 -0.0755 0.9946 0.0583
-14.500 -1.1678 0.02161 0.01589 -0.0764 0.9930 0.0592
-14.250 -1.1462 0.02068 0.01495 -0.0770 0.9909 0.0605
-14.000 -1.1270 0.01989 0.01414 -0.0769 0.9864 0.0617
-13.750 -1.1052 0.01919 0.01342 -0.0771 0.9822 0.0630
-13.500 -1.0813 0.01856 0.01276 -0.0775 0.9787 0.0644
-13.250 -1.0627 0.01796 0.01214 -0.0768 0.9723 0.0657
-13.000 -1.0431 0.01735 0.01152 -0.0763 0.9659 0.0673
-12.750 -1.0242 0.01683 0.01099 -0.0754 0.9592 0.0688
-12.500 -1.0053 0.01638 0.01050 -0.0743 0.9511 0.0702
-12.250 -0.9865 0.01596 0.01004 -0.0731 0.9427 0.0715
-12.000 -0.9691 0.01551 0.00956 -0.0716 0.9321 0.0732
-11.750 -0.9506 0.01512 0.00914 -0.0702 0.9215 0.0751
-11.500 -0.9311 0.01478 0.00875 -0.0689 0.9111 0.0769
-11.250 -0.9115 0.01444 0.00838 -0.0677 0.9016 0.0788
-10.750 -0.8735 0.01384 0.00773 -0.0648 0.8828 0.0832
-10.500 -0.8524 0.01359 0.00743 -0.0636 0.8730 0.0854
-10.250 -0.8305 0.01329 0.00712 -0.0627 0.8643 0.0883
-10.000 -0.8077 0.01305 0.00685 -0.0618 0.8544 0.0912
-9.750 -0.7846 0.01279 0.00658 -0.0610 0.8450 0.0942
-9.500 -0.7614 0.01255 0.00631 -0.0602 0.8343 0.0980
-9.250 -0.7372 0.01234 0.00607 -0.0596 0.8253 0.1013
-9.000 -0.7134 0.01210 0.00583 -0.0589 0.8147 0.1054
-8.750 -0.6887 0.01192 0.00561 -0.0583 0.8045 0.1093
-8.500 -0.6644 0.01170 0.00539 -0.0577 0.7932 0.1139
-8.250 -0.6392 0.01154 0.00520 -0.0572 0.7836 0.1180
-8.000 -0.6140 0.01136 0.00501 -0.0567 0.7731 0.1220
-7.750 -0.5888 0.01120 0.00482 -0.0561 0.7628 0.1267
-7.500 -0.5629 0.01107 0.00466 -0.0557 0.7515 0.1304
-7.250 -0.5376 0.01091 0.00449 -0.0552 0.7416 0.1347
-7.000 -0.5114 0.01078 0.00433 -0.0549 0.7313 0.1390
-6.750 -0.4854 0.01066 0.00419 -0.0544 0.7208 0.1429
-6.500 -0.4594 0.01052 0.00404 -0.0540 0.7100 0.1475
-6.250 -0.4332 0.01043 0.00390 -0.0537 0.6996 0.1516
-6.000 -0.4068 0.01030 0.00377 -0.0533 0.6886 0.1561
-5.750 -0.3810 0.01020 0.00364 -0.0529 0.6769 0.1614
-5.250 -0.3288 0.01000 0.00340 -0.0521 0.6504 0.1729
-5.000 -0.3029 0.00994 0.00330 -0.0516 0.6369 0.1795
-4.750 -0.2766 0.00980 0.00319 -0.0512 0.6257 0.1885
-4.500 -0.2505 0.00972 0.00309 -0.0508 0.6142 0.1972
-4.250 -0.2239 0.00962 0.00300 -0.0505 0.6034 0.2080
-4.000 -0.1978 0.00953 0.00293 -0.0501 0.5934 0.2184
-3.750 -0.1705 0.00946 0.00286 -0.0499 0.5845 0.2275
-3.500 -0.1441 0.00939 0.00280 -0.0496 0.5748 0.2382
-3.250 -0.1169 0.00932 0.00274 -0.0494 0.5667 0.2476
-3.000 -0.0899 0.00927 0.00269 -0.0491 0.5570 0.2569
-2.750 -0.0627 0.00925 0.00265 -0.0489 0.5482 0.2637
-2.500 -0.0355 0.00920 0.00261 -0.0486 0.5395 0.2717
-2.000 0.0195 0.00916 0.00255 -0.0483 0.5250 0.2845
-1.750 0.0469 0.00912 0.00253 -0.0481 0.5178 0.2927
-1.250 0.1018 0.00908 0.00249 -0.0478 0.5048 0.3076
-1.000 0.1295 0.00906 0.00248 -0.0476 0.4977 0.3155
-0.500 0.1835 0.00905 0.00247 -0.0471 0.4802 0.3355
-0.250 0.2101 0.00907 0.00248 -0.0468 0.4702 0.3454
0.000 0.2373 0.00905 0.00249 -0.0466 0.4626 0.3574
0.250 0.2640 0.00903 0.00249 -0.0463 0.4539 0.3721
0.500 0.2904 0.00903 0.00251 -0.0459 0.4459 0.3886
0.750 0.3170 0.00900 0.00253 -0.0456 0.4372 0.4098
1.000 0.3425 0.00900 0.00257 -0.0451 0.4268 0.4337
1.250 0.3691 0.00896 0.00260 -0.0448 0.4190 0.4574
1.500 0.3953 0.00897 0.00265 -0.0444 0.4111 0.4777
1.750 0.4218 0.00899 0.00270 -0.0441 0.4038 0.4962
2.000 0.4483 0.00903 0.00276 -0.0438 0.3951 0.5137
2.250 0.4742 0.00908 0.00283 -0.0433 0.3871 0.5302
2.500 0.5010 0.00911 0.00289 -0.0431 0.3805 0.5440
2.750 0.5271 0.00920 0.00297 -0.0427 0.3727 0.5576
3.000 0.5532 0.00926 0.00306 -0.0423 0.3657 0.5714
3.250 0.5794 0.00933 0.00314 -0.0419 0.3580 0.5843
3.500 0.6046 0.00943 0.00325 -0.0414 0.3503 0.6001
3.750 0.6308 0.00948 0.00334 -0.0410 0.3443 0.6148
4.000 0.6562 0.00960 0.00346 -0.0405 0.3362 0.6284
4.250 0.6811 0.00970 0.00358 -0.0400 0.3287 0.6428
4.500 0.7061 0.00981 0.00370 -0.0394 0.3200 0.6565
4.750 0.7301 0.00995 0.00384 -0.0387 0.3114 0.6732
5.000 0.7548 0.01003 0.00398 -0.0380 0.3039 0.6921
5.250 0.7775 0.01017 0.00414 -0.0370 0.2958 0.7110
5.500 0.8005 0.01026 0.00428 -0.0361 0.2891 0.7305
5.750 0.8213 0.01040 0.00445 -0.0347 0.2796 0.7530
6.000 0.8430 0.01052 0.00465 -0.0335 0.2706 0.7844
6.250 0.8636 0.01071 0.00490 -0.0322 0.2602 0.8196
6.500 0.8845 0.01090 0.00515 -0.0309 0.2492 0.8508
6.750 0.9047 0.01116 0.00542 -0.0295 0.2391 0.8733
7.000 0.9245 0.01145 0.00572 -0.0280 0.2296 0.8922
7.250 0.9451 0.01170 0.00599 -0.0267 0.2228 0.9101
7.500 0.9641 0.01201 0.00630 -0.0251 0.2153 0.9273
7.750 0.9839 0.01230 0.00660 -0.0237 0.2094 0.9440
8.000 1.0038 0.01265 0.00694 -0.0224 0.2019 0.9593
8.250 1.0270 0.01302 0.00729 -0.0219 0.1951 0.9721
8.500 1.0526 0.01339 0.00764 -0.0219 0.1887 0.9822
8.750 1.0780 0.01380 0.00802 -0.0220 0.1828 0.9915
9.000 1.1069 0.01417 0.00837 -0.0228 0.1775 0.9972
9.250 1.1258 0.01460 0.00877 -0.0217 0.1715 1.0000
9.500 1.1431 0.01498 0.00913 -0.0202 0.1668 1.0000
9.750 1.1597 0.01543 0.00956 -0.0187 0.1609 1.0000
10.000 1.1765 0.01593 0.01003 -0.0174 0.1553 1.0000
10.250 1.1930 0.01646 0.01054 -0.0160 0.1491 1.0000
10.500 1.2090 0.01705 0.01110 -0.0146 0.1433 1.0000
10.750 1.2248 0.01767 0.01170 -0.0133 0.1373 1.0000
11.000 1.2401 0.01835 0.01236 -0.0121 0.1319 1.0000
11.250 1.2555 0.01905 0.01304 -0.0108 0.1268 1.0000
11.500 1.2699 0.01982 0.01379 -0.0096 0.1223 1.0000
11.750 1.2853 0.02056 0.01454 -0.0085 0.1182 1.0000
12.000 1.2984 0.02146 0.01543 -0.0073 0.1140 1.0000
12.250 1.3130 0.02231 0.01628 -0.0063 0.1105 1.0000
12.500 1.3260 0.02327 0.01724 -0.0052 0.1065 1.0000
12.750 1.3380 0.02432 0.01829 -0.0041 0.1030 1.0000
13.000 1.3510 0.02534 0.01932 -0.0032 0.0996 1.0000
13.250 1.3613 0.02658 0.02056 -0.0021 0.0962 1.0000
13.500 1.3735 0.02773 0.02172 -0.0013 0.0935 1.0000
13.750 1.3844 0.02899 0.02300 -0.0004 0.0904 1.0000
14.000 1.3926 0.03049 0.02451 0.0005 0.0874 1.0000
14.250 1.4035 0.03183 0.02588 0.0012 0.0847 1.0000
14.500 1.4116 0.03344 0.02750 0.0019 0.0817 1.0000
14.750 1.4187 0.03517 0.02924 0.0026 0.0791 1.0000
15.000 1.4266 0.03685 0.03095 0.0031 0.0763 1.0000
15.250 1.4314 0.03885 0.03297 0.0037 0.0736 1.0000
15.500 1.4374 0.04081 0.03496 0.0042 0.0713 1.0000
15.750 1.4427 0.04286 0.03704 0.0046 0.0689 1.0000
16.000 1.4455 0.04517 0.03938 0.0049 0.0669 1.0000
16.250 1.4497 0.04742 0.04167 0.0052 0.0652 1.0000
16.500 1.4532 0.04974 0.04404 0.0053 0.0634 1.0000
16.750 1.4548 0.05231 0.04664 0.0055 0.0618 1.0000
17.000 1.4551 0.05507 0.04945 0.0055 0.0603 1.0000
17.250 1.4570 0.05766 0.05209 0.0055 0.0591 1.0000
17.500 1.4581 0.06037 0.05485 0.0054 0.0577 1.0000
17.750 1.4563 0.06347 0.05800 0.0052 0.0565 1.0000
18.000 1.4533 0.06673 0.06131 0.0049 0.0553 1.0000
18.250 1.4534 0.06963 0.06427 0.0046 0.0543 1.0000
18.500 1.4511 0.07288 0.06758 0.0042 0.0533 1.0000
18.750 1.4485 0.07617 0.07093 0.0037 0.0522 1.0000
19.000 1.4443 0.07970 0.07452 0.0031 0.0512 1.0000
19.250 1.4375 0.08358 0.07846 0.0024 0.0502 1.0000
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