水流紊動對魚類影響實驗研究.pdf

1、河海大學碩士學位論文水流紊動對魚類影響實驗研究姓名：王得祥申請學位級別：碩士專業(yè)：水力學及河流動力學指導教師：嚴忠民20070601ABSTRACTABSTRACTInrecentyears，ithasbeenpaidmoreattentiontoprotectthebiologydiversityanddevelopthebasinsocietycontinuously111etlewtaskthatrepairingthedestr

2、oyedecosystemwasproposedSomewaterbasinofourcountryalsosuccessivelyproposedthegoalofecologicalrehabilitationForthisreason，manytopicsOilecohydraulicsresearchwereappearednefishtookallimportantcompositionofwaterecosystemabou

3、twhichmanyresearchresultshadbeenobtainedTheturbulencehasallimportantinfluenceonfishsurvival，manyscholarshaveconductedtheresearchaboutitThismainresearchobjectivewasusingtheOscillatinggridturbulencegeneratortogenerateturbu

4、lenceinthelaboratoryandanalyzedthedifferentinfluenceonerucianwimdifferentturbulenceintensityMainresearchcontentofthisattidehasbeenpresented：1Oscillating鰣dturbulencegeneratorWasestablishedinthelaboratoryADVandPⅣwereemploy

5、edtomeasuregird—turbulenceflowinthehofizonmlflumerespectivelyThroughmanyexperiments，thecharacteristicofOscillating鰣dturbulenceinthehorizontalflumehadbeenanalyzed2TheresultsobtainedbyADVandPIVWascomparedandcarriedonthecon

6、trastwitllpreviousresearchresultsTheeffectofmeasuringthecharacteristicofOscillatinggridturbulenceinthehorizontalflumewithADVandPIVmeastuementtechnologieshadevaluated3Theresearchabouttheinfluenceonfishwithflowturbulentand

7、shearstresshadsummarizedThemechanismoffishinjuredhadbeenanalyzed4Throughchanging鰣dmovementgeneratorcontrolledturbulenceimensityparameterofOscillatinggridturbulenceThedifferentinfluenceonerucianwithdifferentturbulenthadbe

8、enstudiedTheturbulenceintensityrangeoftheerucianmaintainingnormallyswimmingposturehadbeenstudiedThecrucian’sinjuredrateandmortalityratewithdifferentturbulenceintensityhadalsobeenstudiedKeywords：Grid—turbulence；Turbulence