Page 115 - 《水资源与水工程学报》2022年第1期
P. 115
!33 " ! 1 # & ' ( ) & * + , - Vol.33No.1
2022 $ 2 % JournalofWaterResources&WaterEngineering Feb.,2022
DOI:10.11705/j.issn.1672-643X.2022.01.15
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BCDEF:TV213.4 GHIJK:A GLMF:1672643X(2022)01011105
Regressionanalysisofheadlosscoefficientofthesurgetank
withaconnectingpipe
2
2
2
1
FENGSiqi,CHENYimin,YANGFei,SUNHongliang,CAIFulin 1
(1.CollegeofWaterConservancyandHydropowerEngineering,HohaiUniversity,Nanjing210098,China;
2.PowerChinaHuadongEngineeringCorporationLimited,Hangzhou310014,China)
Abstract:Inordertostudytheinfluenceofstructuralparametersandflowconditionsofsurgetankson
thelocalheadlosscoefficient ,amultivariatelinearregressionmodelwasestablishedbasedonthemeas
ureddataofphysicalmodels.Theregressionequationsforcalculatingtheheadlosscoefficientofthetail
racesurgetankwithaconnectingpipewereobtained ,thentheresultsoftheequationswerecompared
andanalyzedwiththoseofthehydraulicmodeltest.Theresearchshowsthattheregressionanalysisre
sultsareingoodagreementwiththoseofthehydraulicmodeltest,andthecorrespondingregressionequa
tionscanwellreflectthechangeableruleoflocalheadlosscoefficientundertheinteractionofdiversion
ratio ,pipediameterratioandflowpattern.Sotheseequationshavestrongengineeringapplicabilityand
canbeappliedtothecalculationofheadlosscoefficientinthehydraulicdesignofsurgetanks.
Keywords:tailracesurgetank;headlosscoefficient;connectingpipe;multivariatelinearregression;
regressionmodel
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