泄洪洞反弧段流場氣泡運動特性的圖像測量與分析.pdf

1、西安理工大學碩士學位論文泄洪洞反弧段流場氣泡運動特性的圖像測量與分析姓名：薛瑞申請學位級別：碩士專業(yè)：水力學及河流動力學指導教師：陳剛邵建斌20080301————————————————————————————————————————————————一一捅要Title：IMAGEMEASUREMENTANDANALYSISOFBUBBLEMOTIONCHARACTERISTICINFLOWFIELDOFSPILLWAYBUCKETMa

2、jor：HydraulicsandRiverDynamicsName：RuiXUESignature：‘盡絲△』么壘Supervisor：ProfGangCHENSignature：LectJianbinSHAOSignature：AbstractGasliquidtwophaseflowisthemostcomplicatedtwophaseflowforithastransformableinterfaceandcompressib

3、leairphaseTherearelotsofresearchworkswllichhavedevelopedearliestHoweverlimitedbyexperimentalmeansanditsdifficultythedevelopmenthadbeenslowthenRecently，imagemeasuringtechniquehasbeeomeahotIesearchtopicinthefieldofmeasurem

4、entforitsadvantagessuchashighmassresolvingpowerhighsensitivityrapidandnon—contactgaugingWiththeapplicationtothespillwaytI加【IleloftheYalongjianghydroelectricprojectwhichhashi曲waterhead，severalproblemsoftheaeratedwaterflow

5、sareinvestigatedImagemeasurementofhighspeedtwophaseflowfieldwasrealizedThemaincontentsofthestudiesandachievementsareasfollowed：(1)AccordingtotheJinpingFirstStagespillwaytunnelshapedesignofYalongriverhydropow盯deVelopment，

6、thephysicalmodeloftunnelbucketofscaleof1：100Wasdesignedandmanufactured；(2)AccordingtoMachineToolDesignCode，thecameraguiderailwhichWasneededbvlmagemeasurementwasdesignedandmanufacturedThecamerastandWasmainlycomposedoflead

7、ingtrackunitofrollingmotioninlinemovement、horizontalleadscrew、verticalleadingtrackunitofrollingmotioninlinemovementandverticalleadscrew觚ditcallcontrolaccuratepositionofthecameraTheprecisionofmeasurementreachesto1mm(3)LED

8、arrayforsurfacelightsourcewhichWasusedforlightingwasdesignedandmanufacturedandsuitablepowerequipmentWasmatched(4)Micro—bubblegeneratorwasdesignedandmanufactured，itCangeneratebubblesandthediametersofbubbleswereO109ram；(5)