流体管路流动阻力系数

1、流量L/h粗糙管/cmH2O粗糙管/cmH2O平均压差Pf cmH2O左右压差左右压差50054.255.91.754.355.91.61.6570057.560.73.257.760.93.23.290061.767.25.561.566.85.35.411006572.87.86572.57.57.6513006878.410.468.178.610.510.45150070.684.814.270.684.914.314.25170072.490.718.372.390.518.218.25190073.495.822.473.396.723.422.9流量L/h光滑管/cmH2O光滑管

2、/cmH2O平均压差Pf左右压差左右压差cmH2O50050.351.10.850.251.41.2170054.356.52.254.356.52.22.29005962.53.558.662.13.53.5110063.368.45.162.967.84.95130067.4746.667.273.96.76.65150071.380.49.170.976.967.55170073.884.911.173.784.71111.05190076.289.513.376.289.513.313.3流量L/h局部阻力管/cmH2O局部阻力管/cmH2O平均压差Pf左右压差左右压差cmH2O500

3、49.951.51.649.851.31.51.5570054.256.92.754.2572.82.7590058.562.84.358.562.544.15110063.269.15.962.768.45.75.8130066.574.27.766.774.47.77.7150070.280.310.169.979.91010.05170072.885.612.872.785.412.712.7519007590.215.27590.215.215.2Re0.03350.0330.03250.0320.03150.0315000100000.02503150002000025000 300

4、00350000.10031BPolynomial Fit of Sheet1 B粗糙管的相对粗糙度约为0.0006,绝对粗糙度s/d为0.03Equationy = Intercept +B1*x、1 + B2*xA2WeightResidual SumNo Weighting4.0303E-4of SquaresAdj. R-Square0.36403ValueStandard ErrorIntercept-0.865471.80119BB1-0.253690.85081B2数据处理: 粗糙管：流量(L/h)平均压差(mH2O)平均压差：?2流速 v(m3/s)Re5000.0165161

5、.84535330.44232138786.5696297000.032313.88189740.619249812301.197489000.054529.67570180.796178315815.8253311000.0765750.37391090.973106919330.4531813000.10451025.0205711.150035422845.0810415000.14251397.7553241.326963926359.7088917000.18251790.1076961.503892429874.3367419000.2292246.2173281.68082093

6、3388.96459入X (柏拉修斯公 式)X0.0331487340.0326799690.0004687650.0328002320.0300434380.0027567940.033483570.0282139250.0052696450.0317540470.0268334160.0049206310.0310565060.0257358370.0053206690.0318093910.0248314070.0069779840.0317167030.0240664430.0076502600.0318604050.023406460.008453945光滑管:流量L/h平均压差mH

7、2O平均压差Pa流速 v（m3/s）Re5000.0198.088092930.44232138786.5696297000.022215.79380450.619249812301.197489000.035343.30832530.796178315815.8253311000.05490.44046470.973106919330.4531813000.0665652.2858181.150035422845.0810415000.0755740.56510161.326963926359.7088917000.11051083.8734271.503892429874.33674190

8、00.1331304.5716361.680820933388.96459入X （柏拉修斯公式）X0.0200901420.032679969-0.0125898270.0225501590.030043438-0.0074932790.0217023140.028213925-0.0065116110.0207542790.026833416-0.0060791370.0197632310.025735837-0.0059726060.0168533970.024831407-0.0079780100.0192038120.024066443-0.0048626310.0185040780.

9、02340646-0.0049023820.026B0.025Polynomial Fit of Sheetl R0.0240.023数系力阻0.0220.0210.0200.0190.018 1 -10000150002000025000Re3000035000光滑管的相对粗糙度约为0.0005,绝对粗糙度s/d为0.025流量L/h局部阻力压降P，f(mH2O)局部阻力压 降(Pa)流速 v (m3/s)5000.005553.9484510.44232130.5524789047000.005553.9484510.61924980.2818769929000.006563.757260.79617830.20152148611000.00878.4704740.97310690.16603423113000.0105102.99251.15003540.15602551