预览加载中，请您耐心等待几秒...

双船拖曳式海洋电磁三维自适应正演模拟及响应特征研究（英文）.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

双船拖曳式海洋电磁三维自适应正演模拟及响应特征研究（英文） ResearchonThree-dimensionalAdaptiveForwardSimulationandResponseCharacteristicsofTwin-towedMarineElectromagneticSystem Abstract: Marineelectromagneticsystemisanindispensabletoolforexploringundersearesources.Inthispaper,weproposeathree-dimensionaladaptiveforwardsimulationmodelfortwin-towedmarineelectromagneticsystems,andinvestigatetheircorrespondingresponsecharacteristics.Thesimulationresultsshowthatourproposedmodelcaneffectivelysimulatetheresponseofmarineelectromagneticsystems,andprovidevaluableguidanceformarineresourceexploration. Introduction: Marineelectromagneticsystemisakeytechnologyforoceanexploration.Ithasbeenwidelyusedintheexplorationofmineralresources,oilandgasresources,environmentalmonitoring,andgeohazardassessment.Twin-towedmarineelectromagneticsystemsareacommontypeofmarineelectromagneticsystems,andarecharacterizedbytheirhighresolutionandsensitivity.However,duetothecomplexityofthemarineenvironment,athree-dimensionalelectromagneticforwardsimulationmodelisneededtoaccuratelyinterprettheelectromagneticresponseofthemarineenvironment. Methodology: Theproposedthree-dimensionaladaptiveforwardsimulationmodelfortwin-towedmarineelectromagneticsystemsincludesthreemajorsteps:discretizationoftheoceanmodel,computationoftheelectromagneticfield,andcomputationoftheresponseofthetowedsystem. First,wediscretizetheoceanmodelintoathree-dimensionalmesh,whichiscomposedoftetrahedralelements.Then,weusefiniteelementmethodtocomputetheelectromagneticfielddistributioninsidetheoceanmodel,basedonthebackgroundconductivitymodel.Finally,wesimulatetheresponseofthetowedsystembyintegratingtheelectromagneticfieldsalongthetowedline. Inordertoimprovethecomputationalefficiencyandaccuracyofthemodel,weuseanadaptivemeshrefinementalgorithmtodynamicallyadjustthemeshsizeandlocation.Thisalgorithmisbasedontheerrorestimationofthenumericalsolution,andcaneffectivelyreducethenumberofelementsrequiredtoachievethedesiredaccuracy. Results: Weapplyourthree-dimensionaladaptiveforwardsim