水的粘度计算表

1、水的黏度表(0409)温度T粘度PPa s或N-s-m-2温度T粘度PPa-s 或Nsm2KK0273.161.79211.7921x10-320.2293.361.00001.0000X10-31274.161.73131.7313x10-321294.160.98100.981 Ox10-32275.161.67281.6728x10-322295.160.95790.9579x10-33276.161.61911.6191x10-323296.160.93580.9358x10-34277.161.56741.5674x10 324297.160.91420.9142x10-35278.

2、161.51881.5188X10-325298.160.89370.8937x10-36279.161.47281.4728x10-326299.160.87370.8737x10-37280.161.42841.4284x10-327300.160.85450.8545x10-38281.161.38601.3860x10-328301.160.83600.8360x10-39282.161.34621.3462x10-329302.160.81800.8180x10-310283.161.30771.3077x10-330303.160.80070.8007x10-311284.161.

3、27131.2713x10-331304.160.78400.7840x10-312285.161.23631.2363x10-332305.160.76790.7679x10-313286.161.20281.2028X10-333306.160.75230.7523x10-314287.161.17091.1709*10-334307.160.73710.7371 x10-315288.161.14041.1404x10-335308.160.72250.7225xIO-316289.161.11111.1111X36309.160.70850.7085x10-310-317290.161

4、.08281.0828X10-337310.160.69470.6947x10-318291.161.05591.0559X10-338311.160.68140.6814x10-319292.161.02991.0299x10-339312.160.66850.6685x10-320293.161.00501.0050x10-340313.160.65600.6560x10-3水的物理性质温度t/c饱和燕气压 p/kPa密度p/kg m4HfkJkW比定压热容 c./kJ kgO导热系数入粘度卩/1(HPas体积膨胀系数a表面张力。/1(PNm-i昔兰徳数P00.6082999.904.21

5、255.13179.210.6375.613.66101.2262999.742.044.19757.45130.770.7074.19.52202.3346998.283.904.18359.89100.501.8272.67.01304.2474995.7125.694.17461.7680.073.2171.25.42407.3766992.2165.714.17463.3865.603.8769.64.325012.31988.1209.304.17464.7854.944.4967.73.546019.932983.2251.124.17865.9446.885.1166.22.98

6、7031.164977.8292.994.17866.7640.615.7064.32.548047.379971.8334.944.19567.4535.656.3262.62.229070.136965.3376.984.20867.9831.656.9560.71.96100101.33958.4419.104.22068.0428.387.5258.81.76110143.31951.0461.344.23868.2725.898.0856.91.61120198.64943.1503.674.25068.5023.738.6454.81.47130270.25934.8546.384

7、.26668.5021.779.1752.81.36140361.47926.1589.084.28768.2720.109.7250.71.26150476.24917.0632.204.31268.3818.6310.348.61.18160618.28907.4675.334.34668.2717.3610.746.61.11170792.59897.3719.294.37967.9216.2811.345.31.051801003.5886.9763.254.41767.4515.3011.942.31.001901255.6876.0807.634.46066.9914.4212.6

8、40.80.962001554.77863.0852.434.50566.2913.6313.338.40.932101917.72852.8897.654.55565.4813.0414.136.10.912202320.88840.3943.704.61464.5512.4614.833.80.892302798.59827.3990.184.68163.7311.9715.931.60.882403347.91813.61037.494.75662.8011.4716.829.10.872503977.67799.01085.644.84461.7610.9818.126.70.8626

9、04693.75784.01135.044.94960.8410.5919.724.20.872705503.99767.91185.285.07059.9610.2021.621.90.882806417.24750.71236.285.22957.459.8123.719.50.892907443.29732.31289.955.48555.829.4226.217.20.933008592.94712.51344.805.73653.969.1229.214.70.973109877.96691.11402.166.07152.348.8332.912.31.0232011300.366

10、7.11462.036.57350.598.5338.210.01.1133012879.6640.21526.197.24348.738.1443.37.821.2234014615.9610.11594.758.16445.717.7553.45.781.3835016538.5574.41671.379.50443.037.2666.83.891.6036018667.1528.01761.3913.98439.546.671092.062.3637021040.9450.51892.4340.31933.735.692640.486.80F3Viscosity decreases wi

11、th pressure(at temperatures below 33C)Viscous flow occurs by molecules moving through the voids that exist between them. As the pressure increases, the volume decreases and the volume of these voids reduces, so normally increasing pressure increases the viscosity.2502004006008001000Pressure, MPaWate

12、r s pressure-viscosity behavior can be explained by the increased pressure (up to about 150 MPa) causing deformation, so reducing the strength of the hydrogen一bonded network, which is also partially responsible for the viscosity This reduction in cohesivity more than compensates for the reduced void

13、 volume. It is thus a direct consequence of the between hydroge n bon ding effects and the vander Waals dispersion forces in water hydrogen bonding prevailing at lower temperatures and pressures At higher pressures (and densities), the between hydrogen bon ding effects and the van der Waals dispersi

14、o n forces is tipped in favor of the dispersion forces and the remaining are stronger due to the closer proximity of the contributing oxyge n atoms Viscosity, the n. in creases with pressure The dashed line (opposite) indicates the viscosity minimaPressure, MPaThe variation of viscosity with pressure and temperature has been used as evidence that the viscosity is determined more by the extent of hydrogen