泵站引水系統(tǒng)非恒定流計算研究.pdf

1、分類號——UDC——工學碩士學位論文學校代碼!!!12密級——泵站引水系統(tǒng)非恒定流計算研究碩士研究生盞：』：絲專業(yè)名稱流體機械及工程揚州大學二00六年五月?lián)P卅l大學碩士學位論文AbstractThefunctionofwaterdiversionsystemofthepumpingstationistoensnreadequatewatercurrentflowevenlyintopumpsumporinletconduitandtoo

2、fferpumpfineflowconditionsitalsoCanguaranteeoperationsecurityofthepumpingstationandthewaterlevelinthepumpintakenotchangeabruptlywithinsuspendingperiodPracticallythereareunsteadyflowinthewaterdiversionsystemofthepumpingst

3、ationasaresultofthechangeofupsteanlstageandpumpoperationstageIthasimportantsignificancefortheoptimumoperationandmanagementofthepumpingstationtostudyonone—dimensionalunsteadyflowofwaterdiversionsystemofthepumpingstationBa

4、sedonthetheoryofonedimensionalunsteadyflowSaintvenantEquationsdiscretedby4pointPreissmannimplicitscheme，isusedtoanalyzefluiddynamiccharacteristicsofunsteadyflowinwaterdiversionsystemofthepumpingstationandtocalculatestage

5、hydrographofthepumpintakeinthispaperSothehydraulicparametersoftheapproachingchannelwhichwouldmeettheoperationneedforthepumpingstationCanbeacquiredAtthesalnetime，consideringtheinteractionofthewaterlevelinthediversionchann

6、elandthepumpintake，diversionchannelwithrivernetworkistobeincludedbythewaterdiversionsystem，andthetraditionaldefinitionof“waterdiversionsystem’’isexpandedThentwomathematicalmodelsstudyingonone—dimensionalunsteadyflowofwat

7、erdiversionsystemareproposedaimingatthehydrauliccalculationoftwodifferenttypeofthediversionchannelwiththebranchrivernetworkandtheringrivernetworkTosolvingthenodeequations，SuccessiveOverRelaxationMethodwhichbasedontheMatr

8、ixMarkMethodforsolvinglargesizesparsitylinearequationsisusedAtlast，HECRASsoftwaresystemandprogrammeareappliedinordertosolvethemathematicalmodelsAIImathematicalmodelscanbeusedforreferenceintheprojectresearch，designandoper