水的粘度计算表-水的动力粘度计算公式

1、水的黏度表(0 40°C)温度T粘度Pa s 或N s m- 2cK0273.161. 79211.7921X10'31274.161. 73131.7313X1032275.161. 67281.6728X10-33276.161.61911.6191XIO'34277.161. 56741.5674X10"3527& 161. 51881.5188X1036279.161. 47281.4728X103温度T粘度Pa s 或N S DT2cK20.2293. 361. 00001. 0000X10-321294.160. 98100. 9810X

2、10-322295 160. 95790. 9579 X10-323296.160. 93580. 9358 XIO'324297. 160. 91420.9142X10'32529& 160. 89370. 8937 XIO"326299.160. 87370. 8737 XIO'37280. 161. 42841.4284X10-327300. 160. 85450. 8545 XIO'38281. 161. 38601. 3860X10-328301. 160. 83600. 8360 X10-39282. 161. 34621.3462

3、X10-329302. 160. 81800 8180XKT10283.161. 30771.3077X10'330303.160. 80070. 8007 X10-311284.161. 27131.2713X10-331304.160. 78400. 7840 X10-312285.161. 23631.2363X10-332305.160. 76790. 7679 X10'313286.161. 20281.2028X10-333306. 160. 75230. 7523 X10-314287. 161. 17091. 1709 X10-334307. 160. 7371

4、0. 7371X10-315288.161. 14041. 1404 X10-33530& 160. 72250. 7225 X10-316289.161. 11111. 1111X10"336309.160. 70850. 7085 X10-317290.161. 08281.0828X10-337310. 160. 69470. 6947 X10-318291. 161. 05591.0559X10-338311. 160. 68140. 6814 X10-319292. 161. 02991.0299X10-339312.160. 66850. 6685 X10-320

5、293.161. 00501.0050X10'340313.160. 65600. 6560 X10-3水的物理性质温度t/°C饱和蒸 气压p/kPa密度P /kg 十焙H/kJ -血*比定压热容c>/kj 忒 K2导热系数入/10'T K':粘度u/10*sPa s体积膨 胀系数 a /灯表面张力0 /10' 十普兰德 数Pr00. 6082999.904.21255. 13179. 210. 6375.613.66101. 2262999. 742.044. 19757. 45130. 770. 7074. 19. 52202.334699&

6、amp; 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. 1166.22.987031. 164977.8292.994. 17866. 7640.615. 7064.32.548047.

7、379971.8334.944. 19567. 4535. 656. 3262.62.229070. 136965.3376. 984. 20867.9831.656. 9560.71.96100101. 33958.4419. 104. 22068. 0428. 387. 5258.81.76no143. 31951.0461. 344. 23868. 2725. 898. 0856.91.61120198. 64943. 1503. 674. 25068. 5023. 738. 6454.81.47130270. 25934. 8546. 384. 26668. 5021.779. 175

8、2.81.36140361. 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.

9、 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. 7311.9715.931.60. 882403347. 91813.61037. 494. 75662.8011.4716.829. 10. 872503977. 677

10、99.01085. 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. 4226.217.20. 933008592. 94712.51344.805. 73653. 969. 122

11、9.214.70.973109877. 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. 2666.83.891.6036018667. 1528.01761. 3

12、913. 98439. 546. 671092. 062. 3637021040.9450.51892. 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 volume decreases and the volume o

13、f these voids reduces, so normally increasing pressure increases the viscosity02004006008001000Pressure, MPaWater 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

14、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 lower tempe

15、ratures and pressures 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 remaininghydrogen bonds are stronger due to the closer proximity of the contributing oxygen atoms L655 Viscosity, then, increases with pressure. The dashed line (opposite) indicates the viscosity minimaThe variation of viscosity with pressure and temperature has been used as evidence that the viscosity is determined more by the extent