空气的密度粘度随温度的变化表

干空气的物理性质

ρ/kg·m-3cp/kJ·kg-1·K-1λ/10-2W·m-1·K-1μ/10-5Pa·s

温度t/℃密度 比定压热容导热系数粘度普兰德数Pr -50 1.584 1.013 2.035 1.460.728 -40 1.515 1.013 2.117 1.520.728 -30 1.453 1.013 2.198 1.570.723 -20 1.395 1.009 2.279 1.620.716 -10 1.342 1.009 2.36 1.670.712

0 1.293 1.009 2.442 1.720.707

10 1.247 1.009 2.512 1.760.705

20 1.205 1.013 2.593 1.810.703

30 1.165 1.013 2.675 1.860.701

40 1.128 1.013 2.756 1.910.699

50 1.093 1.017 2.826 1.960.698

60 1.06 1.017 2.896 2.010.696

70 1.029 2.966 2.060.694

801 1.022 3.047 2.110.692 900.972 1.022 3.128 2.150.69 1000.946 1.022 3.21 2.190.688 1200.898 1.026 3.338 2.280.686 1400.854 1.026 3.489 2.370.684 1600.815 1.026 3.64 2.450.682 1800.779 1.034 3.78 2.530.681 2000.746 1.034 3.931 2.60.68 2500.674 1.043 4.268 2.740.677 3000.615 1.047 4.605 2.970.674 3500.566 1.055 4.908 3.140.676 4000.524 1.068 5.21 3.30.678 5000.456 1.072 5.745 3.620.687 6000.404 1.089 6.222 3.910.699 7000.362 1.102 6.711 4.180.706 8000.329 1.1147.176 4.430.713 9000.301 1.1277.63 4.670.717 10000.277 1.1398.071 4.90.719 11000.257 1.1528.502 5.120.722 12000.239 1.1649.153 5.350.724