水的粘度计算表

1、页眉水的黏度表 (0 40 )温度 TPa ·s 或粘度KN ·s·m-21.7921 ×0273.161.792110 -31.7313 ×1274.161.731310 -31.6728 ×2275.161.672810 -31.6191 ×3276.161.619110 -31.5674 ×4277.161.567410 -31.5188 ×5278.161.518810 -31.4728 ×6279.161.472810 -3温度 T粘度 Pa·s 或KN ·s

2、83;m -21.0000 ×20.2293.361.000010 -30.9810 ×21294.160.981010 -30.9579 ×22295.160.957910 -30.9358 ×23296.160.935810 -30.9142 ×24297.160.914210 -30.8937 ×25298.160.893710 -30.8737 ×26299.160.873710 -31 / 7页眉7280.161.42841.4284×27300.160.85450.8545×10 -310 -

3、38281.161.38601.3860×28301.160.83600.8360×10 -310 -39282.161.34621.3462×29302.160.81800.8180×10 -310 -310283.161.30771.3077×30303.160.80070.8007×10 -310 -311284.161.27131.2713×31304.160.78400.7840×10 -310 -312285.161.23631.2363×32305.160.76790.7679×1

4、0 -310 -313286.161.20281.2028×33306.160.75230.7523×10 -310 -314287.161.17091.1709×34307.160.73710.7371×10 -310 -315288.161.14041.1404×35308.160.72250.7225×10 -310 -316289.161.11111.1111×36309.160.70850.7085×2 / 7页眉10 -310 -317290.161.0828 ×37310.160.6947

5、×1.08280.694710 -310 -31.0559 ×0.6814 ×18291.161.055938311.160.681410 -310 -31.0299 ×0.6685 ×19292.161.029939312.160.668510 -310 -31.0050 ×0.6560 ×20293.161.005040313.160.656010 -310 -3水的物理性质比定压热体积膨温度饱和蒸气表面张力普兰德密度 焓导热系数粘度胀系数容t/ 压p/kPa/kg ·m -3H/kJ ·kg -1/

6、10 -2 W ·m -1 ·K-1/10 -5 Pa·s-3N ·m-1数 Pr/10c p /kJ ·kg -1 ·K-1-4K-1/1000.6082999.904.21255.13179.210.6375.613.66101.2262999.742.044.19757.45130.770.7074.19.52202.3346998.283.904.18359.89100.501.8272.67.013 / 7页眉304.2474995.7125.694.17461.7680.073.2171.25.42407.3766992.

7、2165.714.17463.3865.603.8769.64.325012.31988.1209.304.17464.7854.944.4967.73.546019.932983.2251.124.17865.9446.885.1166.22.987031.164977.8292.994.17866.7640.615.7064.32.548047.379971.8334.944.19567.4535.656.3262.62.229070.136965.3376.984.20867.9831.656.9560.71.96100101.33958.4419.104.22068.0428.387.

8、5258.81.76110143.31951.0461.344.23868.2725.898.0856.91.61120198.64943.1503.674.25068.5023.738.6454.81.47130270.25934.8546.384.26668.5021.779.1752.81.36140361.47926.1589.084.28768.2720.109.7250.71.26150476.24917.0632.204.31268.3818.6310.348.61.18160618.28907.4675.334.34668.2717.3610.746.61.11170792.5

9、9897.3719.294.37967.9216.2811.345.31.051801003.5886.9763.254.41767.4515.3011.942.31.001901255.6876.0807.634.46066.9914.4212.640.80.964 / 7页眉2001554.77863.0852.434.50566.2913.6313.338.40.932101917.72852.8897.654.55565.4813.0414.136.10.912202320.88840.3943.704.61464.5512.4614.833.80.892302798.59827.39

10、90.184.68163.7311.9715.931.60.882403347.91813.61037.494.75662.8011.4716.829.10.872503977.67799.01085.644.84461.7610.9818.126.70.862604693.75784.01135.044.94960.8410.5919.724.20.872705503.99767.91185.285.07059.9610.2021.621.90.882806417.24750.71236.285.22957.459.8123.719.50.892907443.29732.31289.955.

11、48555.829.4226.217.20.933008592.94712.51344.805.73653.969.1229.214.70.973109877.96691.11402.166.07152.348.8332.912.31.0232011300.3667.11462.036.57350.598.5338.210.01.1133012879.6640.21526.197.24348.738.1443.37.821.2234014615.9610.11594.758.16445.717.7553.45.781.3835016538.5574.41671.379.50443.037.26

12、66.83.891.6036018667.1528.01761.3913.98439.546.671092.062.365 / 7页眉37021040.9450.51892.4340.31933.735.692640.486.80F3Viscosity decreases with pressure(at temperatures below 33°C)Viscous flow occurs by molecules moving through the voids that exist between them. As the pressure increases, the vol

13、ume decreases and the volume of these voids reduces, so normally increasing 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, whic

14、h is also partially responsible 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 lowe

15、r temperatures and pressures. At higher pressures (and densities), the balance6 / 7页眉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 b