投棄式海流剖面儀探頭運動特性數值模擬研究.pdf

1、河北工業(yè)大學碩士學位論文投棄式海流剖面儀探頭運動特性數值模擬研究姓名：張瑞申請學位級別：碩士專業(yè)：化工過程機械指導教師：陳文義；劉寧201105投棄式海流剖面儀探頭運動特性數值模擬研究iiNUMBERICALNUMBERICALNUMBERICALNUMBERICALSIMULATIONSIMULATIONSIMULATIONSIMULATIONRTARTARTARTAONONONONMOVEMENTMOVEMENTMOVEMENTMO

2、VEMENTACTERISTICACTERISTICACTERISTICACTERISTICOFOFOFOFTHETHETHETHEXCPXCPXCPXCPPROBEPROBEPROBEPROBEABSTRACTABSTRACTABSTRACTABSTRACTTheXCPprobehasanimptantstrategicsignificanceinthenationaleconomysocialdevelopmentmilitary.

3、Atthebeginningof21centurythedomesticbegantoresearchtheXCPprobemeasurementstechnologybutthereisnoreptontheunderwatermovementpropertiesofnumericalsimulationexperimentalresearchofXCPprobeinChinathewaterflowacteristicsofsimu

4、lationstudiesaboutXCPprobeareseldomreptedonabroad.InthispaperthestudyaboutthemovementacteristicshydrodynamicacteristicoftheXCPprobewereinvestigatedsystematicallyusingtheCFDtechnologyestablishtheprobehydrodynamicacteristi

5、cstudyofnumericalsimulationmethodwithcommercialsoftwareFluent.Thestudyprovidethereferenceontheprobestructureoptimizationseatestdataanalysisnewjettisonprobe.ThispaperanalyzesthejettisonMarineprobesnumericalsimulationtechn

6、ologyoffluidacteristicschoosinganumericalsimulationmethodverifythemethodTheresearchcontentasfollows:(1)AcquiredthedepthtimecurvesReynoldsnumberresistancecoefficientcurvethetestdataconsistentwiththissimulationmethodtoveri

7、fythecrectness.(2)TheprobestructuraldesignisreasonableaccdingtotheXCPprobeflowfielddistribution.Thearcofprobeheadstypedesignplaysanimptantroleonfallingspeedalthoughthetailofprobesacrificesthefallingspeedwhileitcanensurep

8、robestableplummetedstance.(3)AttackAnglecansignificantlychangetheflowfieldofsymmetry.010AngleofattackXCPprobedragcoefficientliftcoefficientincreaseswithincreasingattackAngle1026AngleofattackXCPprobeliftcoefficientswithat

9、tackAngleincreasesresistancecoefficientincreaseswhiletheoverallincreaseinlocalreduceappearedintheprocess28Angleofattackoccuraroundflowseparationwhenmethan28Angleofattackprobeafterinstability.(4)Theflowfielddistributionpr

10、obeofdragcoefficientlimitspeedvaluesunderdifferentspeedswereobtainedunderrotatingcodinatesrotation.RotationwillmakeprobethewholeflowincreasesthecircumferentialvelocitycomponentreduceprobefallingspeedExchangewiththerotati

11、ngspeedproberesistancecoefficientwillincreasethelimitsofunderwaterstablemovementspeedwhendecreases.Lowspeedprobefallingspeeddecreasesarenotobviouswhenabove15rsspeedprobefallingspeedpedissignificant.(5)Theinfluenceonhydro

12、dynamicacteristicofXCPprobeunderdifferentseawaterdensitiesisobviousbuttheinfluenceofdifferenttemperaturecanbeigned.Basedonthehydrodynamicacteristicwkrequirementtheoptimumstructuralparameterswereobtained:(1)theprobeheadra

13、diandesignf27degreesbywhichthewaterintheprobehastheleastresistancecanreachalargerspeed.(2)electrodeinstallationlocationshouldasfaraspossibleinfrontintermediateconduitmaximumlimitsignaldisttion.(3)probewhereaboutsspeedof1