NACA 0021 (naca0021-il) Xfoil prediction polar at RE=500,000 Ncrit=9
| Details | Polar file |
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Airfoil: NACA 0021 (naca0021-il) Reynolds number: 500,000 Max Cl/Cd: 60.62 at α=10.25° Description: Mach=0 Ncrit=9 Source: Xfoil prediction Download polar: xf-naca0021-il-500000.txt Download as CSV file: xf-naca0021-il-500000.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 = 9.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-19.750 -1.2237 0.09201 0.08687 -0.0351 1.0000 0.0669
-19.500 -1.2258 0.08851 0.08331 -0.0364 1.0000 0.0681
-19.250 -1.2282 0.08499 0.07969 -0.0376 1.0000 0.0693
-19.000 -1.2301 0.08156 0.07618 -0.0387 1.0000 0.0705
-18.750 -1.2347 0.07798 0.07260 -0.0397 1.0000 0.0718
-18.500 -1.2386 0.07438 0.06896 -0.0407 1.0000 0.0731
-18.250 -1.2399 0.07113 0.06565 -0.0416 1.0000 0.0745
-18.000 -1.2400 0.06805 0.06249 -0.0425 1.0000 0.0760
-17.750 -1.2408 0.06492 0.05928 -0.0432 1.0000 0.0775
-17.500 -1.2455 0.06147 0.05582 -0.0439 1.0000 0.0790
-17.250 -1.2466 0.05841 0.05273 -0.0445 1.0000 0.0806
-17.000 -1.2451 0.05568 0.04992 -0.0450 1.0000 0.0823
-16.750 -1.2412 0.05321 0.04736 -0.0454 1.0000 0.0840
-16.500 -1.2432 0.05024 0.04437 -0.0457 1.0000 0.0857
-16.250 -1.2435 0.04749 0.04159 -0.0459 1.0000 0.0874
-16.000 -1.2401 0.04515 0.03921 -0.0461 1.0000 0.0894
-15.750 -1.2336 0.04313 0.03711 -0.0461 1.0000 0.0914
-15.500 -1.2310 0.04083 0.03476 -0.0460 1.0000 0.0934
-15.250 -1.2290 0.03853 0.03245 -0.0458 1.0000 0.0954
-15.000 -1.2228 0.03667 0.03056 -0.0455 1.0000 0.0978
-14.750 -1.2129 0.03516 0.02898 -0.0452 1.0000 0.1002
-14.500 -1.2091 0.03322 0.02702 -0.0446 1.0000 0.1026
-14.250 -1.2032 0.03152 0.02530 -0.0439 1.0000 0.1052
-14.000 -1.1933 0.03017 0.02392 -0.0433 1.0000 0.1080
-13.750 -1.1831 0.02890 0.02260 -0.0425 1.0000 0.1107
-13.500 -1.1771 0.02739 0.02110 -0.0414 1.0000 0.1135
-13.250 -1.1671 0.02624 0.01993 -0.0404 1.0000 0.1167
-13.000 -1.1535 0.02537 0.01900 -0.0394 1.0000 0.1197
-12.750 -1.1475 0.02410 0.01775 -0.0378 1.0000 0.1231
-12.500 -1.1375 0.02317 0.01682 -0.0363 1.0000 0.1267
-12.250 -1.1246 0.02250 0.01610 -0.0348 1.0000 0.1302
-12.000 -1.1200 0.02154 0.01518 -0.0323 1.0000 0.1340
-11.750 -1.1136 0.02086 0.01450 -0.0296 1.0000 0.1378
-11.500 -1.1058 0.02039 0.01399 -0.0268 1.0000 0.1414
-11.250 -1.1078 0.01975 0.01338 -0.0225 1.0000 0.1450
-11.000 -1.1107 0.01929 0.01293 -0.0177 1.0000 0.1486
-10.750 -1.1141 0.01898 0.01260 -0.0127 1.0000 0.1521
-10.500 -1.1224 0.01870 0.01229 -0.0067 1.0000 0.1551
-10.250 -1.0934 0.01806 0.01171 -0.0080 0.9972 0.1620
-10.000 -1.0611 0.01758 0.01122 -0.0096 0.9944 0.1689
-9.750 -1.0285 0.01705 0.01074 -0.0113 0.9920 0.1766
-9.500 -0.9983 0.01656 0.01028 -0.0124 0.9881 0.1838
-9.250 -0.9668 0.01609 0.00984 -0.0138 0.9841 0.1917
-9.000 -0.9330 0.01561 0.00939 -0.0155 0.9810 0.1998
-8.750 -0.8959 0.01519 0.00899 -0.0178 0.9789 0.2085
-8.500 -0.8643 0.01471 0.00856 -0.0190 0.9749 0.2171
-8.250 -0.8319 0.01436 0.00821 -0.0202 0.9697 0.2255
-8.000 -0.8001 0.01385 0.00778 -0.0214 0.9654 0.2351
-7.750 -0.7692 0.01351 0.00745 -0.0222 0.9602 0.2438
-7.500 -0.7466 0.01314 0.00713 -0.0212 0.9512 0.2528
-7.250 -0.7182 0.01282 0.00681 -0.0214 0.9451 0.2617
-7.000 -0.6987 0.01251 0.00655 -0.0197 0.9340 0.2706
-6.750 -0.6738 0.01225 0.00627 -0.0190 0.9258 0.2795
-6.500 -0.6532 0.01198 0.00604 -0.0175 0.9144 0.2888
-6.250 -0.6292 0.01176 0.00580 -0.0166 0.9047 0.2978
-6.000 -0.6071 0.01151 0.00558 -0.0154 0.8932 0.3077
-5.750 -0.5831 0.01132 0.00538 -0.0145 0.8822 0.3171
-5.500 -0.5596 0.01110 0.00517 -0.0135 0.8705 0.3274
-5.250 -0.5355 0.01093 0.00500 -0.0127 0.8582 0.3373
-5.000 -0.5109 0.01076 0.00481 -0.0119 0.8464 0.3480
-4.750 -0.4866 0.01060 0.00467 -0.0111 0.8330 0.3581
-4.500 -0.4615 0.01047 0.00452 -0.0104 0.8204 0.3689
-4.250 -0.4368 0.01033 0.00437 -0.0096 0.8068 0.3794
-4.000 -0.4113 0.01023 0.00425 -0.0090 0.7934 0.3903
-3.750 -0.3865 0.01010 0.00411 -0.0083 0.7800 0.4011
-3.500 -0.3605 0.01003 0.00401 -0.0078 0.7657 0.4119
-3.250 -0.3357 0.00991 0.00391 -0.0071 0.7522 0.4230
-2.750 -0.2845 0.00976 0.00373 -0.0059 0.7241 0.4451
-2.500 -0.2583 0.00972 0.00365 -0.0054 0.7105 0.4559
-2.250 -0.2331 0.00965 0.00358 -0.0048 0.6963 0.4676
-2.000 -0.2069 0.00960 0.00352 -0.0043 0.6825 0.4787
-1.750 -0.1814 0.00956 0.00346 -0.0037 0.6690 0.4906
-1.500 -0.1554 0.00952 0.00342 -0.0032 0.6550 0.5020
-1.250 -0.1295 0.00949 0.00338 -0.0027 0.6418 0.5145
-1.000 -0.1040 0.00947 0.00334 -0.0020 0.6283 0.5262
-0.750 -0.0774 0.00946 0.00332 -0.0016 0.6149 0.5386
-0.500 -0.0521 0.00943 0.00331 -0.0010 0.6021 0.5510
-0.250 -0.0258 0.00944 0.00329 -0.0006 0.5887 0.5633
0.000 0.0000 0.00942 0.00329 0.0000 0.5763 0.5763
0.250 0.0258 0.00944 0.00329 0.0006 0.5633 0.5887
0.500 0.0521 0.00943 0.00331 0.0010 0.5510 0.6021
0.750 0.0774 0.00946 0.00332 0.0016 0.5386 0.6149
1.000 0.1040 0.00947 0.00334 0.0020 0.5262 0.6283
1.250 0.1295 0.00949 0.00338 0.0027 0.5144 0.6418
1.500 0.1555 0.00952 0.00341 0.0032 0.5020 0.6550
1.750 0.1815 0.00956 0.00346 0.0037 0.4906 0.6690
2.000 0.2069 0.00960 0.00352 0.0043 0.4786 0.6825
2.250 0.2331 0.00965 0.00358 0.0048 0.4676 0.6963
2.500 0.2583 0.00972 0.00365 0.0054 0.4559 0.7104
2.750 0.2845 0.00976 0.00373 0.0059 0.4451 0.7241
3.250 0.3357 0.00991 0.00391 0.0071 0.4230 0.7522
3.500 0.3606 0.01003 0.00401 0.0078 0.4119 0.7658
3.750 0.3866 0.01010 0.00411 0.0083 0.4011 0.7800
4.000 0.4114 0.01023 0.00425 0.0090 0.3903 0.7934
4.250 0.4369 0.01033 0.00437 0.0096 0.3793 0.8068
4.500 0.4616 0.01047 0.00452 0.0104 0.3689 0.8204
4.750 0.4867 0.01060 0.00467 0.0111 0.3581 0.8329
5.000 0.5110 0.01076 0.00481 0.0119 0.3480 0.8464
5.250 0.5356 0.01093 0.00500 0.0127 0.3373 0.8582
5.500 0.5598 0.01110 0.00517 0.0135 0.3274 0.8705
5.750 0.5833 0.01132 0.00538 0.0145 0.3171 0.8821
6.000 0.6073 0.01151 0.00558 0.0153 0.3076 0.8932
6.250 0.6294 0.01176 0.00580 0.0166 0.2978 0.9047
6.500 0.6535 0.01198 0.00604 0.0174 0.2888 0.9144
6.750 0.6741 0.01225 0.00627 0.0189 0.2794 0.9258
7.000 0.6990 0.01251 0.00655 0.0196 0.2706 0.9340
7.250 0.7185 0.01282 0.00681 0.0213 0.2617 0.9451
7.500 0.7469 0.01314 0.00712 0.0212 0.2528 0.9512
7.750 0.7695 0.01351 0.00744 0.0221 0.2438 0.9602
8.000 0.8005 0.01385 0.00778 0.0213 0.2351 0.9653
8.250 0.8323 0.01435 0.00821 0.0201 0.2255 0.9697
8.500 0.8646 0.01470 0.00856 0.0190 0.2171 0.9749
8.750 0.8964 0.01519 0.00899 0.0177 0.2084 0.9789
9.000 0.9335 0.01561 0.00939 0.0154 0.1997 0.9810
9.250 0.9673 0.01609 0.00983 0.0136 0.1916 0.9841
9.500 0.9988 0.01656 0.01027 0.0123 0.1837 0.9882
9.750 1.0292 0.01704 0.01073 0.0112 0.1765 0.9920
10.000 1.0618 0.01757 0.01121 0.0095 0.1688 0.9945
10.250 1.0941 0.01805 0.01169 0.0078 0.1620 0.9973
10.500 1.1224 0.01868 0.01227 0.0067 0.1551 1.0000
10.750 1.1141 0.01897 0.01258 0.0127 0.1521 1.0000
11.000 1.1108 0.01927 0.01291 0.0177 0.1486 1.0000
11.250 1.1079 0.01973 0.01335 0.0225 0.1450 1.0000
11.500 1.1062 0.02037 0.01396 0.0267 0.1414 1.0000
11.750 1.1141 0.02084 0.01448 0.0295 0.1377 1.0000
12.000 1.1207 0.02152 0.01515 0.0322 0.1339 1.0000
12.250 1.1256 0.02247 0.01607 0.0346 0.1302 1.0000
12.500 1.1386 0.02315 0.01680 0.0361 0.1267 1.0000
12.750 1.1487 0.02408 0.01773 0.0376 0.1230 1.0000
13.000 1.1550 0.02533 0.01896 0.0392 0.1196 1.0000
13.250 1.1687 0.02620 0.01989 0.0401 0.1166 1.0000
13.500 1.1787 0.02736 0.02107 0.0412 0.1135 1.0000
13.750 1.1847 0.02888 0.02257 0.0423 0.1106 1.0000
14.000 1.1953 0.03012 0.02387 0.0430 0.1079 1.0000
14.250 1.2052 0.03147 0.02526 0.0436 0.1051 1.0000
14.500 1.2111 0.03319 0.02698 0.0443 0.1025 1.0000
14.750 1.2153 0.03510 0.02891 0.0449 0.1001 1.0000
15.000 1.2252 0.03660 0.03049 0.0452 0.0977 1.0000
15.250 1.2315 0.03847 0.03238 0.0454 0.0953 1.0000
15.500 1.2333 0.04078 0.03471 0.0456 0.0933 1.0000
15.750 1.2364 0.04305 0.03702 0.0457 0.0913 1.0000
16.000 1.2429 0.04507 0.03912 0.0457 0.0893 1.0000
16.250 1.2463 0.04742 0.04151 0.0456 0.0873 1.0000
16.500 1.2460 0.05018 0.04430 0.0453 0.0856 1.0000
16.750 1.2446 0.05309 0.04724 0.0450 0.0839 1.0000
17.000 1.2484 0.05558 0.04982 0.0446 0.0822 1.0000
17.250 1.2499 0.05832 0.05263 0.0441 0.0805 1.0000
17.500 1.2487 0.06139 0.05573 0.0435 0.0789 1.0000
17.750 1.2439 0.06486 0.05921 0.0428 0.0774 1.0000
18.000 1.2436 0.06794 0.06238 0.0420 0.0759 1.0000
18.250 1.2437 0.07102 0.06554 0.0412 0.0744 1.0000
18.500 1.2422 0.07429 0.06887 0.0402 0.0730 1.0000
18.750 1.2382 0.07790 0.07251 0.0392 0.0717 1.0000
19.000 1.2338 0.08146 0.07607 0.0382 0.0704 1.0000
19.250 1.2320 0.08490 0.07961 0.0371 0.0692 1.0000
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