NACA 0021 (naca0021-il) Xfoil prediction polar at RE=200,000 Ncrit=9
| Details | Polar file |
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Airfoil: NACA 0021 (naca0021-il) Reynolds number: 200,000 Max Cl/Cd: 47.99 at α=8.75° Description: Mach=0 Ncrit=9 Source: Xfoil prediction Download polar: xf-naca0021-il-200000.txt Download as CSV file: xf-naca0021-il-200000.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 = 0.200 e 6 Ncrit = 9.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-19.500 -1.1826 0.09047 0.08413 -0.0463 1.0000 0.0897
-19.250 -1.2047 0.08434 0.07776 -0.0489 1.0000 0.0910
-19.000 -1.2278 0.07832 0.07145 -0.0514 1.0000 0.0922
-18.750 -1.2032 0.07853 0.07184 -0.0504 1.0000 0.0941
-18.500 -1.1961 0.07650 0.06982 -0.0509 1.0000 0.0958
-18.250 -1.1992 0.07318 0.06640 -0.0518 1.0000 0.0975
-18.000 -1.2090 0.06910 0.06214 -0.0531 1.0000 0.0993
-17.750 -1.2212 0.06488 0.05769 -0.0542 1.0000 0.1009
-17.500 -1.2022 0.06431 0.05727 -0.0537 1.0000 0.1031
-17.250 -1.1971 0.06218 0.05513 -0.0539 1.0000 0.1052
-17.000 -1.1989 0.05930 0.05214 -0.0544 1.0000 0.1074
-16.750 -1.2067 0.05590 0.04852 -0.0549 1.0000 0.1094
-16.500 -1.1937 0.05462 0.04733 -0.0545 1.0000 0.1119
-16.250 -1.1864 0.05287 0.04559 -0.0544 1.0000 0.1142
-16.000 -1.1842 0.05064 0.04328 -0.0543 1.0000 0.1168
-15.750 -1.1871 0.04802 0.04047 -0.0542 1.0000 0.1192
-15.500 -1.1747 0.04673 0.03926 -0.0537 1.0000 0.1220
-15.250 -1.1677 0.04512 0.03766 -0.0533 1.0000 0.1248
-15.000 -1.1645 0.04322 0.03567 -0.0528 1.0000 0.1278
-14.750 -1.1623 0.04128 0.03358 -0.0521 1.0000 0.1308
-14.500 -1.1497 0.04012 0.03253 -0.0515 1.0000 0.1340
-14.250 -1.1433 0.03864 0.03102 -0.0507 1.0000 0.1373
-14.000 -1.1397 0.03701 0.02926 -0.0497 1.0000 0.1408
-13.750 -1.1282 0.03582 0.02813 -0.0488 1.0000 0.1443
-13.500 -1.1203 0.03459 0.02690 -0.0477 1.0000 0.1480
-13.250 -1.1145 0.03330 0.02552 -0.0464 1.0000 0.1520
-13.000 -1.1045 0.03217 0.02440 -0.0451 1.0000 0.1560
-12.750 -1.0959 0.03114 0.02341 -0.0436 1.0000 0.1600
-12.500 -1.0895 0.03011 0.02230 -0.0418 1.0000 0.1645
-12.250 -1.0801 0.02915 0.02135 -0.0401 1.0000 0.1690
-12.000 -1.0725 0.02831 0.02055 -0.0380 1.0000 0.1734
-11.750 -1.0675 0.02752 0.01969 -0.0354 1.0000 0.1783
-11.500 -1.0603 0.02674 0.01895 -0.0329 1.0000 0.1830
-11.250 -1.0561 0.02610 0.01835 -0.0298 1.0000 0.1876
-11.000 -1.0548 0.02555 0.01774 -0.0261 1.0000 0.1926
-10.750 -1.0521 0.02497 0.01719 -0.0224 1.0000 0.1974
-10.500 -1.0534 0.02452 0.01680 -0.0179 1.0000 0.2019
-10.250 -1.0585 0.02419 0.01642 -0.0126 1.0000 0.2066
-10.000 -1.0652 0.02387 0.01607 -0.0069 1.0000 0.2110
-9.750 -1.0728 0.02355 0.01583 -0.0011 1.0000 0.2152
-9.500 -1.0784 0.02330 0.01558 0.0045 1.0000 0.2200
-9.250 -1.0798 0.02308 0.01526 0.0093 1.0000 0.2254
-9.000 -1.0772 0.02265 0.01495 0.0132 1.0000 0.2309
-8.750 -1.0743 0.02239 0.01469 0.0172 1.0000 0.2371
-8.500 -1.0406 0.02193 0.01426 0.0153 0.9958 0.2467
-8.250 -1.0014 0.02161 0.01391 0.0124 0.9914 0.2577
-8.000 -0.9676 0.02111 0.01352 0.0106 0.9852 0.2676
-7.750 -0.9285 0.02075 0.01314 0.0078 0.9800 0.2791
-7.500 -0.8926 0.02036 0.01282 0.0057 0.9742 0.2901
-7.250 -0.8568 0.01993 0.01244 0.0037 0.9675 0.3012
-7.000 -0.8148 0.01961 0.01207 0.0006 0.9633 0.3140
-6.750 -0.7844 0.01919 0.01179 -0.0002 0.9549 0.3247
-6.500 -0.7448 0.01880 0.01142 -0.0027 0.9495 0.3372
-6.250 -0.7005 0.01845 0.01107 -0.0062 0.9463 0.3509
-6.000 -0.6726 0.01808 0.01081 -0.0063 0.9364 0.3617
-5.750 -0.6312 0.01769 0.01043 -0.0090 0.9317 0.3752
-5.500 -0.5890 0.01729 0.01007 -0.0118 0.9282 0.3888
-5.250 -0.5649 0.01698 0.00984 -0.0110 0.9167 0.3996
-5.000 -0.5284 0.01663 0.00944 -0.0125 0.9110 0.4132
-4.750 -0.5013 0.01630 0.00924 -0.0121 0.9009 0.4244
-4.500 -0.4704 0.01596 0.00889 -0.0124 0.8925 0.4370
-4.250 -0.4429 0.01569 0.00867 -0.0120 0.8828 0.4490
-4.000 -0.4151 0.01537 0.00839 -0.0117 0.8725 0.4608
-3.750 -0.3892 0.01516 0.00815 -0.0109 0.8616 0.4733
-3.500 -0.3617 0.01487 0.00794 -0.0104 0.8506 0.4849
-3.250 -0.3370 0.01470 0.00772 -0.0095 0.8382 0.4975
-3.000 -0.3091 0.01445 0.00752 -0.0090 0.8271 0.5094
-2.750 -0.2848 0.01429 0.00737 -0.0080 0.8134 0.5217
-2.500 -0.2571 0.01412 0.00718 -0.0075 0.8021 0.5346
-2.250 -0.2326 0.01398 0.00709 -0.0066 0.7875 0.5465
-2.000 -0.2073 0.01389 0.00694 -0.0057 0.7744 0.5600
-1.750 -0.1801 0.01375 0.00684 -0.0052 0.7614 0.5721
-1.500 -0.1557 0.01368 0.00675 -0.0043 0.7468 0.5853
-1.250 -0.1288 0.01360 0.00668 -0.0037 0.7340 0.5982
-1.000 -0.1032 0.01353 0.00661 -0.0029 0.7197 0.6110
-0.750 -0.0783 0.01351 0.00657 -0.0020 0.7057 0.6251
-0.250 -0.0264 0.01344 0.00651 -0.0006 0.6782 0.6516
0.000 0.0000 0.01344 0.00652 0.0000 0.6650 0.6650
0.250 0.0264 0.01344 0.00651 0.0006 0.6515 0.6782
0.750 0.0783 0.01351 0.00657 0.0020 0.6251 0.7057
1.000 0.1032 0.01353 0.00661 0.0029 0.6110 0.7197
1.250 0.1288 0.01360 0.00668 0.0037 0.5982 0.7340
1.500 0.1557 0.01368 0.00675 0.0043 0.5853 0.7468
1.750 0.1801 0.01375 0.00684 0.0052 0.5721 0.7614
2.000 0.2073 0.01389 0.00694 0.0057 0.5600 0.7744
2.250 0.2326 0.01398 0.00709 0.0066 0.5465 0.7875
2.500 0.2571 0.01412 0.00718 0.0075 0.5346 0.8021
2.750 0.2848 0.01429 0.00737 0.0080 0.5217 0.8134
3.000 0.3091 0.01444 0.00752 0.0090 0.5094 0.8271
3.250 0.3371 0.01470 0.00772 0.0095 0.4975 0.8383
3.500 0.3617 0.01486 0.00793 0.0104 0.4849 0.8506
3.750 0.3893 0.01516 0.00815 0.0109 0.4733 0.8616
4.000 0.4151 0.01537 0.00839 0.0116 0.4608 0.8725
4.250 0.4429 0.01568 0.00866 0.0120 0.4490 0.8828
4.500 0.4704 0.01595 0.00889 0.0124 0.4370 0.8925
4.750 0.5013 0.01630 0.00924 0.0121 0.4244 0.9009
5.000 0.5284 0.01663 0.00944 0.0125 0.4132 0.9110
5.250 0.5649 0.01697 0.00983 0.0110 0.3996 0.9167
5.500 0.5891 0.01728 0.01007 0.0118 0.3888 0.9282
5.750 0.6313 0.01769 0.01042 0.0090 0.3752 0.9318
6.000 0.6726 0.01808 0.01081 0.0063 0.3617 0.9365
6.250 0.7006 0.01845 0.01106 0.0062 0.3509 0.9463
6.500 0.7449 0.01880 0.01142 0.0027 0.3372 0.9496
6.750 0.7845 0.01919 0.01178 0.0002 0.3247 0.9550
7.000 0.8149 0.01961 0.01207 -0.0006 0.3139 0.9633
7.250 0.8569 0.01992 0.01244 -0.0038 0.3012 0.9676
7.500 0.8926 0.02035 0.01281 -0.0057 0.2901 0.9743
7.750 0.9287 0.02074 0.01313 -0.0079 0.2790 0.9801
8.000 0.9678 0.02110 0.01351 -0.0106 0.2676 0.9853
8.250 1.0017 0.02160 0.01390 -0.0124 0.2577 0.9915
8.500 1.0409 0.02192 0.01425 -0.0153 0.2466 0.9959
8.750 1.0741 0.02238 0.01468 -0.0171 0.2371 1.0000
9.000 1.0770 0.02264 0.01494 -0.0132 0.2309 1.0000
9.250 1.0797 0.02306 0.01524 -0.0093 0.2254 1.0000
9.500 1.0783 0.02329 0.01557 -0.0045 0.2200 1.0000
9.750 1.0729 0.02354 0.01582 0.0010 0.2152 1.0000
10.000 1.0653 0.02386 0.01606 0.0069 0.2110 1.0000
10.250 1.0586 0.02418 0.01641 0.0126 0.2066 1.0000
10.500 1.0536 0.02451 0.01678 0.0179 0.2019 1.0000
10.750 1.0524 0.02495 0.01718 0.0223 0.1974 1.0000
11.000 1.0551 0.02554 0.01772 0.0260 0.1926 1.0000
11.250 1.0565 0.02609 0.01833 0.0297 0.1876 1.0000
11.500 1.0607 0.02673 0.01893 0.0328 0.1830 1.0000
11.750 1.0680 0.02750 0.01967 0.0354 0.1782 1.0000
12.000 1.0731 0.02829 0.02053 0.0379 0.1734 1.0000
12.250 1.0810 0.02913 0.02133 0.0400 0.1690 1.0000
12.500 1.0904 0.03010 0.02228 0.0417 0.1645 1.0000
12.750 1.0969 0.03112 0.02339 0.0435 0.1600 1.0000
13.000 1.1057 0.03215 0.02438 0.0449 0.1559 1.0000
13.250 1.1157 0.03329 0.02550 0.0462 0.1519 1.0000
13.500 1.1216 0.03457 0.02688 0.0475 0.1479 1.0000
13.750 1.1297 0.03580 0.02810 0.0486 0.1442 1.0000
14.000 1.1411 0.03700 0.02924 0.0495 0.1407 1.0000
14.250 1.1448 0.03862 0.03100 0.0505 0.1372 1.0000
14.500 1.1515 0.04009 0.03250 0.0512 0.1339 1.0000
14.750 1.1647 0.04122 0.03351 0.0519 0.1306 1.0000
15.000 1.1663 0.04320 0.03565 0.0525 0.1277 1.0000
15.250 1.1697 0.04508 0.03762 0.0530 0.1247 1.0000
15.500 1.1770 0.04669 0.03921 0.0534 0.1219 1.0000
15.750 1.1888 0.04802 0.04047 0.0539 0.1192 1.0000
16.000 1.1862 0.05062 0.04326 0.0540 0.1167 1.0000
16.250 1.1888 0.05282 0.04554 0.0541 0.1141 1.0000
16.500 1.1965 0.05454 0.04724 0.0542 0.1118 1.0000
16.750 1.2085 0.05592 0.04855 0.0545 0.1094 1.0000
17.000 1.2012 0.05929 0.05213 0.0540 0.1073 1.0000
17.250 1.1998 0.06212 0.05507 0.0536 0.1051 1.0000
17.500 1.2054 0.06420 0.05716 0.0533 0.1030 1.0000
17.750 1.2264 0.06458 0.05736 0.0540 0.1007 1.0000
18.000 1.2113 0.06911 0.06215 0.0527 0.0992 1.0000
18.250 1.2021 0.07314 0.06636 0.0514 0.0974 1.0000
18.500 1.1994 0.07641 0.06972 0.0505 0.0957 1.0000
18.750 1.2073 0.07835 0.07164 0.0501 0.0940 1.0000
19.000 1.2296 0.07842 0.07155 0.0509 0.0921 1.0000
19.250 1.2067 0.08443 0.07786 0.0485 0.0910 1.0000
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