Simulating transport phenomena in interfacial systems

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dc.contributor.advisorLaidlaw, William G.
dc.contributor.authorWassmuth, Fred
dc.date.accessioned2005-07-21
dc.date.available2005-07-21
dc.date.issued1990
dc.description.abstractThe governing equations for the surface phase, in the form established by BAM are developed in the second chapter. These equations are unique in that the surface is treated as a separate entity, with it's own differential equations and surface variables, the bulk phases entering primarily as boundary conditions. In the third chapter the surface equations are used to describe the surface instability of a system first investigated experimentally and theoretically by Linde. Our linear stability analysis, based on the surface balance equations, can extract the stability relations among the surface variables and the rate of energy input, whereas earlier studies had been less successful. In the fourth chapter, the patterns formed in the well-known Benard system are studied using a "finite-difference" representation of coupled nonlinear hydrodynamic equations, representing the system. Surface dynamics play a very significant role in the behavior of this system and when incorporated in the finite difference description of the bulk, one can readily demonstrate the complex interplay of surface and bulk effects. In chapter five we investigate the flow of a gas "bubble" which leaves a thin film as it displaces the liquid between two parallel plates. The finite difference representation of the hydrodynamic equations is restricted to two dimensions but provides not only a description of the movement of the curved gas-liquid interface, but also yields flow patterns in the bulk and at the surface. The interfacial conditions can be varied very quickly within the numerical program and the bubble behavior is studied systematically under a wide range of physical constraints. The thesis concludes, in chapter six, with a discussion of the significance of our results and comments on applications of the equations and computer code developed.
dc.format.extentxiii, 169 leaves : ill. ; 30 cm.en
dc.identifier.citationWassmuth, F. (1990). Simulating transport phenomena in interfacial systems (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/19129en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/19129
dc.identifier.isbn0315617306en
dc.identifier.lccQC 151.7 W38 1990en
dc.identifier.urihttp://hdl.handle.net/1880/17960
dc.language.isoeng
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subject.lccQC 151.7 W38 1990en
dc.subject.lcshHydrodynamics - Research
dc.titleSimulating transport phenomena in interfacial systems
dc.typedoctoral thesis
thesis.degree.disciplineChemistry
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameDoctor of Philosophy (PhD)
ucalgary.item.requestcopytrue
ucalgary.thesis.accessionTheses Collection 58.002:Box 764 520535452
ucalgary.thesis.notesoffsiteen
ucalgary.thesis.uarcreleaseyen
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