NACA 0021 (naca0021-il) Xfoil prediction polar at RE=500,000 Ncrit=5
| Details | Polar file |
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Airfoil: NACA 0021 (naca0021-il) Reynolds number: 500,000 Max Cl/Cd: 56.84 at α=8.75° Description: Mach=0 Ncrit=5 Source: Xfoil prediction Download polar: xf-naca0021-il-500000-n5.txt Download as CSV file: xf-naca0021-il-500000-n5.csv |
XFOIL Version 6.96
Calculated polar for: NACA 0021
1 1 Reynolds number fixed Mach number fixed
xtrf = 1.000 (top) 1.000 (bottom)
Mach = 0.000 Re = 0.500 e 6 Ncrit = 5.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-19.750 -1.1998 0.09619 0.09096 -0.0323 1.0000 0.0550
-19.500 -1.2057 0.09212 0.08681 -0.0338 1.0000 0.0559
-19.250 -1.2114 0.08810 0.08272 -0.0352 1.0000 0.0569
-19.000 -1.2145 0.08450 0.07904 -0.0364 1.0000 0.0578
-18.750 -1.2213 0.08040 0.07488 -0.0377 1.0000 0.0588
-18.500 -1.2285 0.07631 0.07071 -0.0390 1.0000 0.0598
-18.250 -1.2340 0.07249 0.06683 -0.0401 1.0000 0.0609
-18.000 -1.2370 0.06903 0.06331 -0.0411 1.0000 0.0621
-17.750 -1.2383 0.06580 0.06000 -0.0419 1.0000 0.0633
-17.500 -1.2407 0.06248 0.05661 -0.0427 1.0000 0.0644
-17.250 -1.2446 0.05905 0.05313 -0.0434 1.0000 0.0656
-17.000 -1.2460 0.05596 0.04998 -0.0440 1.0000 0.0669
-16.750 -1.2451 0.05316 0.04712 -0.0445 1.0000 0.0683
-16.500 -1.2426 0.05060 0.04448 -0.0448 1.0000 0.0696
-16.250 -1.2410 0.04798 0.04180 -0.0451 1.0000 0.0709
-16.000 -1.2400 0.04536 0.03914 -0.0453 1.0000 0.0723
-15.750 -1.2367 0.04301 0.03675 -0.0454 1.0000 0.0739
-15.500 -1.2314 0.04093 0.03461 -0.0454 1.0000 0.0756
-15.250 -1.2246 0.03904 0.03266 -0.0452 1.0000 0.0772
-15.000 -1.2208 0.03694 0.03053 -0.0450 1.0000 0.0789
-14.750 -1.2145 0.03511 0.02867 -0.0446 1.0000 0.0809
-14.500 -1.2064 0.03350 0.02701 -0.0442 1.0000 0.0830
-14.250 -1.1977 0.03199 0.02546 -0.0437 1.0000 0.0849
-14.000 -1.1905 0.03043 0.02387 -0.0430 1.0000 0.0870
-13.750 -1.1810 0.02909 0.02250 -0.0422 1.0000 0.0893
-13.500 -1.1701 0.02790 0.02128 -0.0414 1.0000 0.0915
-13.250 -1.1605 0.02670 0.02006 -0.0404 1.0000 0.0936
-13.000 -1.1507 0.02557 0.01891 -0.0393 1.0000 0.0962
-12.750 -1.1393 0.02461 0.01793 -0.0381 1.0000 0.0989
-12.500 -1.1283 0.02371 0.01701 -0.0367 1.0000 0.1015
-12.250 -1.1193 0.02279 0.01610 -0.0350 1.0000 0.1045
-12.000 -1.1097 0.02205 0.01534 -0.0330 1.0000 0.1075
-11.750 -1.1012 0.02140 0.01467 -0.0307 1.0000 0.1102
-11.500 -1.0974 0.02073 0.01401 -0.0275 1.0000 0.1132
-11.250 -1.0946 0.02020 0.01348 -0.0239 1.0000 0.1164
-11.000 -1.0705 0.01956 0.01283 -0.0243 0.9971 0.1207
-10.750 -1.0445 0.01886 0.01215 -0.0252 0.9937 0.1260
-10.500 -1.0160 0.01828 0.01158 -0.0263 0.9911 0.1312
-10.250 -0.9914 0.01766 0.01098 -0.0266 0.9858 0.1366
-10.000 -0.9638 0.01716 0.01048 -0.0273 0.9810 0.1420
-9.750 -0.9377 0.01660 0.00995 -0.0278 0.9758 0.1479
-9.500 -0.9132 0.01616 0.00951 -0.0277 0.9681 0.1534
-9.250 -0.8874 0.01565 0.00904 -0.0279 0.9618 0.1595
-9.000 -0.8655 0.01527 0.00865 -0.0272 0.9520 0.1653
-8.750 -0.8430 0.01484 0.00824 -0.0265 0.9433 0.1714
-8.500 -0.8219 0.01449 0.00788 -0.0254 0.9325 0.1777
-8.250 -0.8013 0.01414 0.00753 -0.0242 0.9219 0.1839
-8.000 -0.7807 0.01381 0.00720 -0.0230 0.9104 0.1907
-7.750 -0.7606 0.01353 0.00691 -0.0216 0.8982 0.1969
-7.500 -0.7413 0.01325 0.00663 -0.0200 0.8862 0.2041
-7.250 -0.7204 0.01304 0.00639 -0.0186 0.8729 0.2107
-7.000 -0.6992 0.01277 0.00613 -0.0174 0.8605 0.2185
-6.500 -0.6539 0.01234 0.00566 -0.0154 0.8339 0.2338
-6.250 -0.6302 0.01217 0.00545 -0.0146 0.8208 0.2416
-6.000 -0.6073 0.01196 0.00523 -0.0136 0.8068 0.2500
-5.750 -0.5830 0.01180 0.00505 -0.0129 0.7933 0.2584
-5.500 -0.5597 0.01162 0.00486 -0.0120 0.7796 0.2672
-5.250 -0.5349 0.01149 0.00470 -0.0114 0.7653 0.2763
-5.000 -0.5111 0.01132 0.00453 -0.0106 0.7516 0.2856
-4.500 -0.4618 0.01106 0.00423 -0.0092 0.7234 0.3047
-4.000 -0.4121 0.01084 0.00398 -0.0079 0.6956 0.3245
-3.750 -0.3864 0.01076 0.00387 -0.0075 0.6819 0.3340
-3.500 -0.3617 0.01066 0.00376 -0.0068 0.6684 0.3446
-3.250 -0.3359 0.01059 0.00367 -0.0063 0.6545 0.3541
-3.000 -0.3107 0.01050 0.00358 -0.0057 0.6416 0.3646
-2.750 -0.2850 0.01045 0.00350 -0.0052 0.6281 0.3742
-2.500 -0.2594 0.01037 0.00343 -0.0047 0.6151 0.3848
-2.250 -0.2335 0.01034 0.00337 -0.0042 0.6024 0.3944
-2.000 -0.2079 0.01027 0.00330 -0.0037 0.5892 0.4053
-1.750 -0.1818 0.01024 0.00326 -0.0033 0.5771 0.4153
-1.500 -0.1562 0.01020 0.00321 -0.0027 0.5642 0.4264
-1.250 -0.1300 0.01017 0.00317 -0.0023 0.5522 0.4370
-0.750 -0.0780 0.01012 0.00312 -0.0014 0.5279 0.4590
-0.500 -0.0523 0.01012 0.00310 -0.0009 0.5162 0.4705
-0.250 -0.0260 0.01010 0.00309 -0.0005 0.5042 0.4813
0.000 0.0000 0.01011 0.00309 0.0000 0.4931 0.4931
0.250 0.0260 0.01010 0.00309 0.0005 0.4813 0.5043
0.500 0.0523 0.01012 0.00310 0.0009 0.4705 0.5162
0.750 0.0780 0.01012 0.00312 0.0014 0.4590 0.5279
1.250 0.1299 0.01017 0.00317 0.0023 0.4369 0.5523
1.500 0.1562 0.01020 0.00321 0.0027 0.4264 0.5641
1.750 0.1818 0.01024 0.00326 0.0033 0.4153 0.5771
2.000 0.2079 0.01027 0.00330 0.0037 0.4052 0.5892
2.250 0.2335 0.01034 0.00337 0.0042 0.3945 0.6024
2.500 0.2594 0.01037 0.00343 0.0047 0.3847 0.6150
2.750 0.2850 0.01045 0.00350 0.0052 0.3742 0.6280
3.000 0.3108 0.01050 0.00358 0.0057 0.3647 0.6417
3.250 0.3359 0.01059 0.00367 0.0063 0.3540 0.6545
3.500 0.3618 0.01066 0.00376 0.0068 0.3446 0.6685
3.750 0.3865 0.01076 0.00387 0.0074 0.3340 0.6819
4.000 0.4122 0.01084 0.00398 0.0079 0.3245 0.6956
4.500 0.4619 0.01106 0.00423 0.0092 0.3047 0.7234
5.000 0.5112 0.01132 0.00453 0.0105 0.2857 0.7516
5.250 0.5351 0.01149 0.00470 0.0113 0.2763 0.7653
5.500 0.5599 0.01162 0.00486 0.0120 0.2672 0.7796
5.750 0.5832 0.01180 0.00505 0.0129 0.2584 0.7933
6.000 0.6076 0.01196 0.00523 0.0136 0.2499 0.8068
6.250 0.6304 0.01217 0.00545 0.0145 0.2415 0.8208
6.500 0.6542 0.01234 0.00566 0.0153 0.2337 0.8339
7.000 0.6995 0.01277 0.00613 0.0173 0.2185 0.8605
7.250 0.7208 0.01304 0.00639 0.0185 0.2107 0.8729
7.500 0.7418 0.01326 0.00663 0.0199 0.2042 0.8861
7.750 0.7611 0.01353 0.00691 0.0215 0.1969 0.8981
8.000 0.7812 0.01381 0.00720 0.0229 0.1907 0.9103
8.250 0.8018 0.01413 0.00753 0.0241 0.1838 0.9218
8.500 0.8225 0.01449 0.00788 0.0253 0.1777 0.9324
8.750 0.8435 0.01484 0.00824 0.0264 0.1713 0.9433
9.000 0.8661 0.01527 0.00864 0.0270 0.1653 0.9520
9.250 0.8880 0.01565 0.00903 0.0278 0.1595 0.9618
9.500 0.9139 0.01616 0.00951 0.0276 0.1534 0.9681
9.750 0.9383 0.01659 0.00994 0.0277 0.1478 0.9758
10.000 0.9645 0.01715 0.01047 0.0272 0.1420 0.9810
10.250 0.9922 0.01765 0.01097 0.0265 0.1366 0.9859
10.500 1.0167 0.01827 0.01157 0.0262 0.1311 0.9912
10.750 1.0454 0.01885 0.01214 0.0250 0.1259 0.9938
11.000 1.0714 0.01955 0.01282 0.0242 0.1207 0.9972
11.250 1.0948 0.02018 0.01346 0.0239 0.1163 1.0000
11.500 1.0978 0.02071 0.01399 0.0275 0.1132 1.0000
11.750 1.1017 0.02138 0.01465 0.0306 0.1102 1.0000
12.000 1.1104 0.02202 0.01531 0.0329 0.1074 1.0000
12.250 1.1203 0.02277 0.01607 0.0348 0.1044 1.0000
12.500 1.1294 0.02368 0.01698 0.0365 0.1015 1.0000
12.750 1.1406 0.02458 0.01790 0.0379 0.0989 1.0000
13.000 1.1521 0.02554 0.01888 0.0391 0.0961 1.0000
13.250 1.1620 0.02667 0.02002 0.0402 0.0936 1.0000
13.500 1.1718 0.02787 0.02124 0.0412 0.0914 1.0000
13.750 1.1829 0.02904 0.02246 0.0420 0.0892 1.0000
14.000 1.1924 0.03038 0.02383 0.0427 0.0869 1.0000
14.250 1.1997 0.03195 0.02541 0.0434 0.0848 1.0000
14.500 1.2086 0.03344 0.02695 0.0439 0.0829 1.0000
14.750 1.2167 0.03506 0.02861 0.0443 0.0808 1.0000
15.000 1.2231 0.03688 0.03047 0.0446 0.0788 1.0000
15.250 1.2271 0.03898 0.03260 0.0449 0.0771 1.0000
15.500 1.2341 0.04085 0.03453 0.0450 0.0755 1.0000
15.750 1.2395 0.04294 0.03667 0.0450 0.0738 1.0000
16.000 1.2428 0.04528 0.03906 0.0449 0.0722 1.0000
16.250 1.2439 0.04790 0.04172 0.0447 0.0708 1.0000
16.500 1.2458 0.05049 0.04437 0.0445 0.0695 1.0000
16.750 1.2485 0.05305 0.04700 0.0441 0.0682 1.0000
17.000 1.2493 0.05585 0.04986 0.0436 0.0668 1.0000
17.250 1.2479 0.05895 0.05302 0.0430 0.0655 1.0000
17.500 1.2440 0.06240 0.05652 0.0422 0.0643 1.0000
17.750 1.2421 0.06566 0.05986 0.0415 0.0632 1.0000
18.000 1.2408 0.06889 0.06316 0.0406 0.0620 1.0000
18.250 1.2377 0.07237 0.06671 0.0397 0.0608 1.0000
18.500 1.2322 0.07620 0.07060 0.0386 0.0597 1.0000
18.750 1.2250 0.08031 0.07477 0.0373 0.0587 1.0000
19.000 1.2187 0.08434 0.07887 0.0359 0.0578 1.0000
19.250 1.2154 0.08798 0.08260 0.0347 0.0568 1.0000
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