水閘下游渠道中流態(tài)轉(zhuǎn)變時水流特性試驗研究

1、新疆農(nóng)業(yè)大學碩士學位論文水閘下游渠道中流態(tài)轉(zhuǎn)變時水流特性試驗研究姓名：張巖申請學位級別：碩士專業(yè)：水力學及河流動力學指導教師：邱秀云侯杰20080501AbstractGenerallythesizeofcanalcrosssectioniscalculatedbythedesigneddischarge，butwhenthroughthemaximumdischargeinchannelwhilethewaterdepthisnott

2、hebiggestinexperimentaldiscoveryThisPapersystematicallyhasstudiedtheflowcharacteristics，whichincludethewaterdepthbehindthehydraulicjump，thelocationofthehydraulicjump，whenflowpatterntransformsdownstreamofthesluiceintherec

3、tanglechannelIntheprocessofanalysisthereweremanyV撕ablefactorsmetionedsuchashydraulichead，Einfrontofthesluice，thewaterdepthofthehydraulicjumpconjugatedepth(hl，h9，thestartlocationofhydraulicjump，x】gateopening厶discharge，9Ch

4、annelbottomslopei，andetcBothdifferentkindsofbottomslopeanddischargewereconsideredinthecourseofthecombinationexperimentconsistofdifferentfactorsTheresultshasshownthatthewaterdepthbehindhydraulicjumpWascloselyrelatedtogate

5、openinganddischargeaswellasChannelbottomslopeThroughcomprehensiveanalysis，themainconclusionsandfindingswereobtainedastheflowing：(I)WhenthegateopeningWasacertainvalueandthedischargeWas85to95％ofthelargestone，thewaterdepthb

6、ehindthehydraulicjumpreachedthemaximumvalue(2)WhenhydraulicheadinfrontofthesluiceWasacertainvaluethewaterdepthbehindthehydraulicjumpfirstlyincreasedandthendecreasedwiththedischargeincreamentanditreachedthemaximumvaluewhe

7、nthedischargeis85to95％ofthelargestone(3)Thecalculationformulasofthewaterdepthbehindthehydraulicjumpandthestartlocationofhydraulicjumphavebeenobtainedandtheycarlbereferredbytheactualengineering。Keywords：openchannelflow，wa