Finite Element Formulations for Moving Boundaries, Material Interfaces, and Postprocessing, With Applications to Heat Transfer and Consolidation in Porous Media

dc.contributor.advisorCarey, Graham F.
dc.contributor.advisorSepehrnoori, Kamy
dc.creatorMacKinnon, Robert James
dc.date.accessioned2020-04-13T22:36:43Z
dc.date.available2020-04-13T22:36:43Z
dc.date.issued1988-05
dc.description.abstractThe research described here concerns finite element modeling of problems involving moving boundaries and different material types, together with postprocessing and superconvergence behavior. An example from geomechanics corresponding to underground coal gasification is included to demonstrate the moving grid and moving boundary technique. A new treatment for material interface elements is introduced as part of this formulation. In test calculations this treatment is shown to be superior to previous material averaging strategies. The postprocessing analysis and superconvergence theory is based on an entirely new approach which extensively uses Taylor series analysis and leads to some novel results in finite element modeling. These include new flux and stress postprocessing formulas, and new solution enhancement strategies. Some of these ideas are promising for treatment of other classes of problems such as those in reservoir engineering involving different material types and multiphase flow.en_US
dc.description.departmentPetroleum and Geosystems Engineeringen_US
dc.format.mediumelectronicen_US
dc.identifier.urihttps://hdl.handle.net/2152/80591
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/7607
dc.language.isoengen_US
dc.relation.ispartofUT Electronic Theses and Dissertationsen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.rights.restrictionRestricteden_US
dc.subjectFinite element formulationsen_US
dc.subjectMaterial interfacesen_US
dc.subjectConsolidationen_US
dc.subjectPorous mediaen_US
dc.subjectSuperconvergenceen_US
dc.titleFinite Element Formulations for Moving Boundaries, Material Interfaces, and Postprocessing, With Applications to Heat Transfer and Consolidation in Porous Mediaen_US
dc.typeThesisen_US
dc.type.genreThesisen_US
thesis.degree.departmentPetroleum and Geosystems Engineeringen_US
thesis.degree.disciplinePetroleum Engineeringen_US
thesis.degree.grantorUniversity of Texas at Austinen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US

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