Automatic Mesh Refinement in the SVFlux and ChemFlux Software Packages

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1、AutomaticMeshRefinementInTheSVFluxAndChemFluxSoftwarePackagesMurrayFredlund,SoilVisionSystemsLtd.,Saskatoon,Saskatchewan,CanadaJasonStianson,SoilVisionSystemsLtd.,Saskatoon,Saskatchewan,CanadaMaritzRykaart,SRKLtd.,Vancouver,BritishColumbia,CanadaABSTRACTTh

2、euseoffiniteelementsoftwarepackageshasbecomecommonplaceintheapplicationofgeotechnicalengineering.Theapplicationofthemajorityofthissoftwareremainshobbledbytheneedtomanuallydrawfiniteelementmeshes.Manualgenerationoffiniteelementmesheshasfurtherhinderedthejum

3、ptotheapplicationof3Dfiniteelementmodelsasitremainsdifficulttocreatea3Dmodelinareasonabletimeframe.Significantconvergenceproblemsfurtherhindermodelsolutiononcefiniteelementmeshesarecreated.Thispaperstudiestheapplicationofautomaticmeshgenerationandautomatic

4、meshrefinementtoavarietyoftypicalproblemsencounteredingeotechnicalengineering.Commonseepage,contaminanttransport,andthermalgeotechnicalproblemsareexamined.Inparticular,theapplicationoftheSVFluxandChemFluxsoftwarepackagestoavarietyofcommonproblemsisexamin

5、ed.Theadvantagesoftheautomaticmeshgenerationandautomaticmeshrefinementareexaminedindetail.1.INTRODUCTIONmeshrefinementisimplementedintheSVFLUXandCHEMFLUXsoftwarepackages.ThemodelingofgeotechnicalproblemssuchasseepageandcontaminanttransporthasbecomeanTheobj

6、ectiveofthispaperistopresenttheintegralpartofthepracticeofgeotechnicaladvantagesofautomaticmeshgenerationandengineering.Thefiniteelementandfinitedifferencerefinementwhenappliedtotypicalgeotechnicalnumericalmethodshaveemergedastheprimaryengineeringproblemsi

7、ntheareasofseepage,toolsusedinthesolutionofpartialdifferentialcontaminanttransport,andheatflow.equationsdescribingphysicalprocesses.Thefiniteelementmethod,inparticular,hasbeenwidelyused2.AUTOMATICMESHGENERATIONANDduetoitsabilitytooffersolutionstohighlyirre

8、gularAUTOMATICMESHREFINEMENTgeometries.Commercialsoftwarepackagesareavailableintheareaofgeotechnicalengineering.AgeneraldescriptionoftheautomaticmeshThemajorityofsoftwarepackagesrequireagenerationandautomatic