干空气主要物理参数(密度、比热容、导热系数、热扩散率、粘度)

- cv (kJ/kgK) 0.7152 0.7154 0.7156 0.716 0.7167 0.7178 0.7192 0.7211 0.7235 0.7264 0.7335 0.7424 0.7527 0.764 0.7758 0.7879 0.7999 0.8116 0.823 0.8338 0.8442 0.854 0.8631 0.8718 0.8799 0.8875 0.8946 0.9013 0.9075 0.9134 0.9241 0.9336 0.9422 0.9499 0.9569
Kinemati c Density1 Viscosit ) y1)
-ν (10 -5 m 2 /s) 0.586 0.753 0.935 1.132 1.343 1.568 1.807 2.056 2.317 2.591 3.168 3.782 4.439 5.128 5.853 6.607 7.399 8.214 9.061 9.936 10.83 11.76 12.72 13.7 14.7 15.73 16.77 17.85 18.94 20.06 22.36 24.74 27.2 29.72 32.34 -ρ (kg/m 3 )
2.017 1.765 1.569 1.412 1.284 1.177 1.086 1.009 0.9413 0.8824 0.7844 0.706 0.6418 0.5883 0.543 0.5043 0.4706 0.4412 0.4153 0.3922 0.3716 0.353 0.3362 0.3209 0.3069 0.2941 0.2824 0.2715 0.2615 0.2521 0.2353 0.2206 0.2076 0.1961 0.1858
Diffusivity
Specific heat
-α(10 -6 m 2 /s)
1.08 1.07 1.06 1.05 1.04 y = 3E-07x2 - 8E-05x + 1.0051 R² = 0.9993
10.17 15.67 22.07 29.18 36.94
1.03 1.02 1.01 1 0 100 200 300 400 500 600
Temperat ure
(K )
Specific Heat
Ratio of Dynamic Thermal Specific Viscosit Conducti Heats y vity
-k -μ (10 -5 kg/m s) 1.182 1.329 1.467 1.599 1.725 1.846 1.962 2.075 2.181 2.286 2.485 2.67 2.849 3.017 3.178 3.332 3.482 3.624 3.763 3.897 4.026 4.153 4.276 4.396 4.511 4.626 4.736 4.846 4.952 5.057 5.264 5.457 5.646 5.829 6.008 1.593 1.809 2.02 2.227 2.428 2.624 2.816 3.003 3.186 3.365 3.71 4.041 4.357 4.661 4.954 5.236 5.509 5.774 6.03 6.276 6.52 6.754 6.985 7.209 7.427 7.64 7.849 8.054 8.253 8.45 8.831 9.199 9.554 9.899 10.233 0.744 0.736 0.728 0.72 0.713 0.707 0.701 0.697 0.692 0.688 0.684 0.68 0.68 0.68 0.682 0.684 0.687 0.69 0.693 0.696 0.699 0.702 0.704 0.707 0.709 0.711 0.713 0.715 0.717 0.719 0.722 0.724 0.726 0.728 0.73 (10 -5 kW/m K) Prandtl Number
(c p /c v )
1.401 1.401 1.401 1.401 1.401 1.4 1.4 1.398 1.397 1.395 1.391 1.387 1.381 1.376 1.37 1.364 1.359 1.354 1.349 1.344 1.34 1.336 1.333 1.329 1.326 1.323 1.321 1.319 1.316 1.314 1.311 1.308 1.305 1.302 1.3
thermal conductivity
6 5 4 3 2 1 0 0 100 200 300 400 500 600 y = -3E-06x2 + 0.0093x + 0.0924 R² = 1
density
1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 100 200 300 400 500 600 y = 3E-06x2 - 0.005x + 2.3487 R² = 0.9974
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Байду номын сангаас
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- cp (kJ/kgK) 175 200 225 250 275 300 325 350 375 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1500 1600 1700 1800 1900 1.0023 1.0025 1.0027 1.0031 1.0038 1.0049 1.0063 1.0082 1.0106 1.0135 1.0206 1.0295 1.0398 1.0511 1.0629 1.075 1.087 1.0987 1.1101 1.1209 1.1313 1.1411 1.1502 1.1589 1.167 1.1746 1.1817 1.1884 1.1946 1.2005 1.2112 1.2207 1.2293 1.237 1.244