水的粘度计算表

1、水的黏度表 (040)温度 TPa·s 或温度 T粘度Pa ·s 或粘度KN·s·m-2KN·s·m-21.7921 ×1.0000 ×0273.161.792110 -320.2293.361.000010 -31274.161.73131.7313 ×21294.160.98100.9810 ×10 -310 -32275.161.67281.6728 ×22295.160.95790.9579 ×10 -310 -33276.161.61911.6191 ×2

2、3296.160.93580.9358 ×10 -310 -34277.161.56741.5674 ×24297.160.91420.9142 ×10 -310 -35278.161.51881.5188 ×25298.160.89370.8937 ×10 -310 -36279.161.47281.4728 ×26299.160.87370.8737 ×10 -310 -37280.161.42841.4284 ×27300.160.85450.8545 ×10 -310 -38281.161.386

3、01.3860 ×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 ×10 -

4、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 ×10 -310 -317290.161.08281.0828 ×37310.160.6

5、9470.6947 ×10 -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水的物理性质温度饱和蒸气比定压热体积膨表面张普兰德粘度密度 焓导热系数t/压 p/kPa/kg ·m-3H/kJ ·kg-1容 cp /kJ&#

6、183;kg -1·K-1/10 -2 W·m-1 ·K-1胀系数 力数 Pr/10 -5 Pa ·s/10 -4K -1/10 -3 N·m-100.6082999.904.21255.13179.210.6375.613.66101.2262999.742.044.19757.45130.770.7074.19.52202.3346998.283.904.18359.89100.501.8272.67.01304.2474995.7125.694.17461.7680.073.2171.25.42407.3766992.2165.714.1

7、7463.3865.603.8769.64.325012.31988.1209.304.17464.7854.944.4967.73.546019.932983.2251.124.17865.9446.885.1166.22.987031.164977.8292.994.17866.7640.615.7064.32.548047.379971.8334.944.19567.4535.656.3262.62.229070.136965.3376.984.20867.9831.656.9560.71.96100101.33958.4419.104.22068.0428.387.5258.81.76

8、110143.31951.0461.344.23868.2725.898.0856.91.61120198.64943.1503.674.25068.5023.738.6454.81.47130270.25934.8546.384.26668.5021.779.1752.81.36140361.47926.1589.084.28768.2720.109.7250.71.26150476.24917.0632.204.31268.3818.6310.348.61.18160618.28907.4675.334.34668.2717.3610.746.61.11170792.59897.3719.

9、294.37967.9216.2811.345.31.051801003.5886.9763.254.41767.4515.3011.942.31.001901255.6876.0807.634.46066.9914.4212.640.80.962001554.77863.0852.434.50566.2913.6313.338.40.932101917.72852.8897.654.55565.4813.0414.136.10.912202320.88840.3943.704.61464.5512.4614.833.80.892302798.59827.3990.184.68163.7311

10、.9715.931.60.882403347.91813.61037.494.75662.8011.4716.829.10.872503977.67799.01085.644.84461.7610.9818.126.70.862604693.75784.01135.044.94960.8410.5919.724.20.872705503.99767.91185.285.07059.9610.2021.621.90.882806417.24750.71236.285.22957.459.8123.719.50.892907443.29732.31289.955.48555.829.4226.21

11、7.20.933008592.94712.51344.805.73653.969.1229.214.70.973109877.96691.11402.166.07152.348.8332.912.31.0232011300.3667.11462.036.57350.598.5338.210.01.1133012879.6640.21526.197.24348.738.1443.37.821.2234014615.9610.11594.758.16445.717.7553.45.781.3835016538.5574.41671.379.50443.037.2666.83.891.6036018

12、667.1528.01761.3913.98439.546.671092.062.3637021040.9450.51892.4340.31933.735.692640.486.80F3? Viscosity 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 volume decreases and the

13、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 res

14、ponsible 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 pres

15、sures. 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 mor