干空气主要物理参数(密度、比热容、导热系数、热扩散率、粘度)干空气在压力为100kPa时的参数温度t℃-150-100-50-20012345678910111213141516171819202122232425262728293031323334353637383940506070密度ρkg/m32.8171.9841.5341.3651.2521.2471.2431.2381.2341.2291.2241.2201.2151.2111.2061.2021.1981.1931.1891.1851.1811.1771.1721.1681.1641.1611.1581.1541.1491.1461.1421.1381.1341.1311.1271.1241.1201.1171.1131.1101.1061.1031.0991.0961.0921.0561.0250.996比热容CpkJ/(kg#183;K)1.0381.0221.0131.0091.0091.0091.0091.0091.0091.0091.0091.0091.0091.0091.0091.0101.0101.0101.0111.0111.0121.0121.0121.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0131.0171.0171.017导热系数λ10-2W/(m#183;K)1.1631.6172.0352.2562.3732.3812.3892.3972.4052.4132.4212.4302.4322.4462.4542.4612.4682.4752.4822.4892.4962.5032.5102.5172.5242.5302.5352.5412.5472.5522.5592.5642.5702.5762.5822.5892.5962.6032.6102.6172.6242.6312.6382.6452.6522.7332.8032.861热扩散率DT10-2m2h-1)1.4502.8804.7305.9406.7506.7996.8486.8976.9466.9957.0447.0937.1427.1917.2407.2827.3247.3667.4087.4507.4927.5347.5767.6187.6607.7087.7567.8047.8527.9007.9487.9968.0448.0928.1408.1918.2428.2938.3448.3958.4468.4978.5488.5998.6509.1409.65010.180动力粘度μ10-6Pa#183;s8.73011.77014.61016.28017.16017.22017.27917.33817.39717.45617.51417.57417.63217.69117.75017.79917.84817.89717.94617.99518.04418.09318.14218.19118.24018.28918.33818.38718.43718.48618.53518.58418.63318.68218.73118.78018.82918.87818.92718.97619.02519.07419.12319.17219.22119.61020.40020.400运动粘度ν10-6m2s-13.1005.9409.54011.93013.70013.80013.90014.00014.10014.20014.30014.40014.50014.60014.70014.80014.90015.00015.10015.20015.30015.40015.50015.60015.70015.79115.88215.97316.06416.15516.24616.33716.42816.51916.61016.70916.80816.90717.00617.10517.20417.30317.40217.50017.60018.60019.60020.4508090100120140160180200250300350400500600800100012000.9680.9420.9160.8700.8270.7890.7550.7230.6530.5960.5490.5080.4500.4000.3250.2680.2381.0221.0221.0221.0261.0261.0301.0341.0341.0431.0471.0551.0591.0721.0891.1141.1391.1642.931