水的粘度计算表

1、水的黏度表（040C）温度T粘度1Pa , s 或N s , m-2温度T粘度Pa , s 或n s mCKcK0273.161.79211.7921 X10-320.2293.361.00001.0000 x10-31274.161.73131.7313 X10-321294.160.98100.9810 x10-32275.161.67281.6728 X10-322295.160.95790.9579 x10-33276.161.61911.6191 X, c-31023296.160.93580.9358 x, c-3104277.161.56741.5674 X10-324297.1

2、60.91420.9142 X10-35278.161.51881.5188 X10-325298.160.89370.8937 X10-36279.161.47281.4728 X26299.160.87370.8737 X, c-310, c-3107280.161.42841.4284 X10-327300.160.85450.8545 X10-38281.161.38601.3860 X10-328301.160.83600.8360 X10-39282.161.34621.3462 X10-329302.160.81800.8180 X10-310283.161.30771.3077

3、 X10-330303.160.80070.8007 X10-311284.161.27131.2713 X, c-31031304.160.78400.7840 X, c-31012285.161.23631.2363 X10-332305.160.76790.7679 X10-313286.161.20281.2028 X10-333306.160.75230.7523 X10-314287.161.17091.1709 X10-334307.160.73710.7371 X10-315288.161.14041.1404 X10-335308.160.72250.7225 X10-316

4、289.161.11111.1111 X10-336309.160.70850.7085 X10-317290.161.08281.0828 X, c-31037310.160.69470.6947 X, c-31018291.161.05591.0559 X10-338311.160.68140.6814 X10-319292.161.02991.0299 X10-339312.160.66850.6685 X10-320293.161.00501.0050 X10-340313.160.65600.6560 X10-3水的物理性质温度 t/ C饱和蒸气压 p/kPa密度P-3/kg - m

5、始-1H/kJ - kg比定压热容Cp/kJ - kg1 - K-1导热系数入 /10-2W m1 - K1粘度N/10-5Pa s体积膨 胀系数 a /10-4K-1表面张 力（T/10-3N m1普兰德数Pr00.6082999.904.21255.13179.210.6375.613.66101.2262999.742.044.19757.45130.770.7074.19.52202.3346998.283.904.18359.89100.501.8272.67.01304.2474995.7125.694.17461.7680.073.2171.25.42407.3766992.21

6、65.714.17463.3865.603.8769.64.325012.31988.1209.304.17464.7854.944.4967.73.546019.932983.2251.124.17865.9446.885.1166.22.987031.164977.8292.994.17866.7640.615.7064.32.548047.379971.8334.944.19567.4535.656.3262.62.229070.136965.3376.984.20867.9831.656.9560.71.96100101.33958.4419.104.22068.0428.387.52

7、58.81.76110143.31951.0461.344.23868.2725.898.0856.91.61120198.64943.1503.674.25068.5023.738.6454.81.47130270.25934.8546.384.26668.5021.779.1752.81.36140361.47926.1589.084.28768.2720.109.7250.71.26150476.24917.0632.204.31268.3818.6310.348.61.18160618.28907.4675.334.34668.2717.3610.746.61.11170792.598

8、97.3719.294.37967.9216.2811.345.31.051801003.5886.9763.254.41767.4515.3011.942.31.001901255.6876.0807.634.46066.9914.4212.640.80.962001554.77863.0852.434.50566.2913.6313.338.40.932101917.72852.8897.654.55565.4813.0414.136.10.912202320.88840.3943.704.61464.5512.4614.833.80.892302798.59827.3990.184.68

9、163.7311.9715.931.60.882403347.91813.61037.494.75662.8011.4716.829.10.872503977.67799.01085.644.84461.7610.9818.126.70.862604693.75784.01135.044.94960.8410.5919.724.20.872705503.99767.91185.285.07059.9610.2021.621.90.882806417.24750.71236.285.22957.459.8123.719.50.892907443.29732.31289.955.48555.829

10、.4226.217.20.933008592.94712.51344.805.73653.969.1229.214.70.973109877.96691.11402.166.07152.348.8332.912.31.0232011300.3667.11462.036.57350.598.5338.210.01.1133012879.6640.21526.197.24348.738.1443.37.821.2234014615.9610.11594.758.16445.717.7553.45.781.3835016538.5574.41671.379.50443.037.2666.83.891

11、.6036018667.1528.01761.3913.98439.546.671092.062.3637021040.9450.51892.4340.31933.735.692640.486.80C)F3? Viscosity decreases with pressure(at temperatures below 33Viscous flow occurs by molecules moving through the voids that exist between them. As the pressure increases, the volume decreases and th

12、e volume of these voids reduces, so normallyincreasing pressure increases the viscosity.Water's pressure-viscosity behavior 534 can be explained by the increased pressure (up to about 150 MPa) causing deformation, so reducing the strength of the hydrogen-bonded network, which is also partially r

13、esponsible for the viscosity. This reduction in cohesivity more than compensates for the reduced void volume. It is thus a direct consequence of the balance between hydrogen bonding effects and the van der Waals dispersion forces 558 in water; hydrogen bonding prevailing at lower temperatures and pr

14、essures. At higher pressures (and densities), the balance between hydrogen bonding effects and the van der Waals dispersion forces is tipped in favor of the dispersion forces and the remaining hydrogen bonds are stronger due to the closer proximity of the contributing oxygen atoms 655. Viscosity, then, increases with pressure. The dashed line (opposite) indicates the viscosity minima.The variation of viscosity with pressure and temperature has been used as evidence that the viscosity is determined more by the extent