供水管网水龄的逐节点遍历简化算法

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2009,45(20)1,,。、。,“”。,[1]。,,,;,,,,。,。,。,。、,、。2(1)[2-3]:Ti=Nn=1Σq(n)0iT(n)0iNn=1Σq(n)0i;N∈LUi(1)Ti——i;T(n)0i——in,;q(n)0i——in;LUi——i。:(1),、,,:(theNationalScientificandTechnicalSupportingProgramsofChinaunderGrantNo.2006BAJ08B03)。:(1985-),,,:;,,,,:、;,,,,:;,,,:。:2008-04-21:2008-07-21,,,WANGYong,LIUSui-qing,XINKun-lun,WANGWen-qing,200092EnvironmentScienceandTechnologySchoolofTongjiUniversity,Shanghai200092,ChinaE-mail:wangyongtongji@yahoo.com.cnWANGYong,LIUSui-qing,XINKun-lun,etal.Simplifiedandjunctionbyjunctionalgorithmtocalculatewaterageinurbanwatersupplyanddistributionnetwork.ComputerEngineeringandApplications,2009,45(20):199-201.Abstract:Tocalculatethewaterageintheurbanwatersupplyanddistributionnetwork,asimplifiedandjunctionbyjunctionalgorithmbasedonthedefinitionofthewaterageitselfisdesigned.Differentfromthehomeclassicalmethodinwhicheverypathfromthesourcetothecalculatednodesshouldbepursuedandthe“BreadthFirstSearchMethod”isused,alsonotthesameastheabroadone“LagrangianTransportAlgorithm”inwhicheachpipeisdividedintoseveralsegmentsandthewateragecalculationisconsideredasaspecialcaseofthewaterqualitysimulation,thesimplifiedmethodhasalotofadvantages,suchaseasiermodeling,quickeriteratingandmoreaccurateresult.Soitwillbeabasetheorymodelandgoodreferencetodoamorecomplicatedcalculationandsimulationofthepipenetworkwaterquality.Keywords:waterage;waterqualityinthepipemetwork;simplifiedandjunctionbyjunctionalgorithm;breadthfirstsearchmethod;Lagrangiantransportalgorithm:,。,,,,,。:;;;;DOI:10.3778/j.issn.1002-8331.2009.20.058:1002-8331(2009)20-0199-03:A:TU991.33ComputerEngineeringandApplications1992009,45(20)ComputerEngineeringandApplications11243。(2),,,,。“”,(1)。EPANET,[4]。EPANET(segment),()()(first/lastsegment),。(LagrangianTransportAlgorithm),:(1),,。(2),,。:,,,,,。(3),,。,,。,,,(1),(2)(3),,、,。,,,,。EPANET,,,:,,,。3,。,,。,,;,,。3.1,,()[2]。:tj=0j∈MTi∈SjΣqij(ti+Lijvij)i∈SjΣqijj∈ΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣM(2)MT———();M———();Sj———jj(qij0i);ti,tj——i、j,:s;i———j;qij———ij,:m3/s;Lij——ij,:m;vij——ij,:m/s。1,2,S2={1,4};(2),t2=q12×(t1+L12v12)+q42×(t4+L42v42)q12+q423.2,,qij、Lij、vij,,Sj,titj。,(2),tj。,solve,,:j,solvej=1;,solvej=0。,:solvej=1j∈MT0j∈∈M(3)(3)(2),。(2):,。,,。、,,,,。2(num,k)。3.33EPANET,91,114。。[5],,2,。2002009,45(20)2、solveqij,Lij,vij,Sjk=1j=1j=j+1solvej=0solvej=0坌i∈Sjtjj≥num,j∈M∑solvej≥num,j∈Mtj,kNYNNNYk=k+1YY32JUN25JUN2JUN3JUN7JUN81,,11。。:,,,“”(),,。。,1~20,EPANET2.0,1。EPANET2.0。,EPANET2.0,,,,,;,,。,EPANET2.0,。,0.01h,24h,(2),EPANET2.07、8()3(),。。4。、[2-3],,;,,[1],。,,[4],,,,,。,,,,,,。,EPANET2.0,。,。:[1],.[M].:,2002:200-201.[2],,.[J].,2002,28(5):36-38.[3].SCADA[D].:,2003.[4]RossmanLA.EPANET2usersmanual.Washington,DC:USEnvi-ronmentalProtectionAgency,2000.[5],.[M].:,1997:89-113.NodeIDJunc1Junc2Junc3Junc4Junc5Junc6Junc7Junc8Junc9Junc10Junc11Junc12Junc13Junc14Junc15Junc16Junc17Junc18Junc19Junc20Epnet(t1)0.0515.6523.222.517.477.420.020.030.600.720.790.851.011.111.120.991.244.251.266.92(t2)0.0515.6224.442.477.457.391.99s5.97s0.600.720.790.851.011.111.120.991.244.241.266.89t1-t200.03-1.220.040.020.030.020.030000000000.0100.03(t1-t2)/t1/(%)00.19-5.251.590.270.40100.00100.000000000000.2400.43Age/h1,,,:201

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