-危化品气体泄漏事故的扩散模拟研究与实现

374201207ScienceofSurveyingandMappingVol.37No.4July.1983-、。[e-mail]2010-09-27①②①①①528400②430072【】、、、、。ArcEngine9.3GISC#.NETGIS、。【】ArcEngine【】P208【】A【】1009-2307201204-073-041、、。。。。GISGIS。ArcGISEngineGIS。22.11。、、、、、、、2。CFD。CFDComputationalFluidDynamics。。Gaussion、Gaussion、MB、Sutton、FEM32。。3。。4。xyz1Cxyzt=Q2π3/2σxσyσze－x－ut2/2σ2xe－y2/2σ2ye－z－H2/2σ2z+e－z+H2/2σ2z1CxyztQmg/sσx、σy、σzx、y、zmx、y、zx、y、zmum/stsH———m。Cxyzt=Q2πuσyσze－y2/2σ2ye－z－H2/2σ2z+e－z+H2/2σ2z21。。。2.25。。、。2.3GISGIS、、、、、、、、。、、、、、、、、、、、、。37GIS。GIS6。、、。。GISGIS、。GIS。GIS7。33.1C#.NETGISArcGISEngine。ArcGISEngineGIS。、、、。1、、、、、、、。Oracle10gArcGISAddData.mxd。2、、、、、、、、、ArcGISEngineIToolbarControlAddItem。3、、、。4ArcGISEngine、、。5、、、、、、、Word。3.2GISArcGISEngine9.3MicrosoftVisualStudio2008C#.NET141mxd。2。ERPGTheEmergencyResponsePlanningGuide-lines、2、、122。、、、、、、、、、、。33P0xyP0X0Y0d。3PPxyPXY3、4。474X=X0+xcosα－ysinα3Y=Y0+ycosα+xsinα4xoyABCDxminyminxmaxymaxnx×nynx×nyzHxmin=10xmax=8000ymin=－2000ymax=2000。nx=80ny=40nx×ny=80×40=3200。1tCt+dt、、、、。。4、、、、。、、、、、。MicrosoftVisualStudio2008FileStreamStreamReaderxymt_output.datArcEngine9.3IPointCollectionIPolygon、ISimple-FillSymbol、IFillShapeElement、IGraphicsContainer、。IFeature-LayerIFeatureClassISpatialFilterIFeatureClassSearchIFeatureCursorNextFeature。44.120100701125000kg33。、、1.58mg/m3、6.34mg/m3、63.4mg/m3。5、、。44.25180、360、600、660、84090066007201007201543555000kg2kg/s。33。、、1.58mg/m3、6.34mg/m3、63.4mg/m3。、、。5。ArcGISEngine。。。7857376—。GIS。GIS、。。。1.WebGISJ．2009.2.ArcGISM．.3.J．2002.4.ArcGIS8DesktopM．2003.5.D．2002.6.J．2009343.7.、M．2003.Designandimplementationofdatabasebasedthree-dimensionaldigitalcommunityAbstractThispapercombinedthecharacteristicsofthecurrenturbancommunitydevelopmentusedofcommunity-relatedspa-tialdataandattributedataimplementedthree-dimensionaldisplayandreal-timequeriesaboutdigitalcommunities.ItstudiedhowtoformattheoriginalvectorgraphicsdataintoARCGISaswellashowtomodelbycombiningthesoftwareofthree-dimensionalandGISsoftwaretoachievethree-dimensionalscenedisplayandinformationinquiriesinArcScenescene.Keywordsthree-dimensionaldigitalcommunityArcGISdatastreamingthree-dimensionaldisplaypointtopointqueryGUOlanSurveyingInstituteofXi’anScienceandTechnologyUniversityXi’an710054China檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿75。。1.GISJ．20084570～73.2.J．200123119～22.3.M．1999.4.M．2004.5.J．200632675～78.6.GISJ．20071717.GISJ．200013450-58.ResearchandimplementationofdiffusionsimulationofhazardousgasesleakageaccidentsAbstractInindustrialproductionandtransportationsomehazardousgasessuchaschlorineammoniamethanehydrogensulfideneedtobestored.Thosegasesarecommonlyinflammableexplosiveandharmful.Onceleakedtheybringextremedisasterstohabitantsandenvironmentallaround.FirstlybasedonGaussianModelthispaperusedArcEngine9.3tocalculateallthegridpoints’concentrationsincertainareasaroundtheaccidentspotbyaprogramwithC#.NETlanguage.ThentheleakageanddiffusionsituationwaspredictedandanalyzedbymeansofIsoclinesAlgorithm.Alertingzonesdangerousareasandlethalregionscouldbepres-enteddynamicallyonelectricmapsofGISeverynowandthen.Inadditionhousesfacilitiesandsoonaffectedinthealertingzoneswereabletobeinquiredandcalculatedautomaticallyatanymomentorinanyperiodoftime.Thismethodwhichofferstechnicalandinformationalsupportstoemergencydecisionsandrescueoperationswouldhaveapracticalsignificance.KeywordsGaussianplumemodelGaussianPuffmodelairdiffusionArcEngineisoclinesLENGHai-qin①SUNHai-yan②WUZe-hong①DENGMing-lan①①GeographicInformationSystemCenterGuangdongZhongs-han528400China②SchoolofGeodesyandGeomaticsWuHanUniverstiyWuhan430072China87