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dc.contributor.advisorChen, Jinn-Kueneng
dc.contributor.advisorZhang, Yuwen, 1965-eng
dc.contributor.authorBaheti, Kapil, 1983-eng
dc.date.issued2010eng
dc.date.submitted2010 Summereng
dc.descriptionThe entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.eng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on November 11, 2010).eng
dc.descriptionThesis advisor: Dr. Jinn-Kuen Chen, Dr. Yuwen Zhang, Thesis Supervisors.eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionM. S. University of Missouri--Columbia 2010.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Mechanical and aerospace engineering.eng
dc.description.abstractA two dimensional axisymmetric, interfacial tracking method is developed to model rapid melting and solidification of a free standing metal film subjected to an ultra-short laser pulse. Finite volume method is employed to solve the coupled electron and lattice heat conduction equations together with the equations for ultrafast solid-liquid phase transformation, to calculate the location of solid-liquid interface and the temperature distribution in the metal film. The interfacial velocities, both melting and resolidification, in the ultra-fast phase change process are obtained by considering interfacial energy balance and the nucleation dynamics. Both the electron and lattice temperature in the metal film irradiated by Gaussian laser beams are computed and presented along the cylindrical coordinates. The effect of laser fluences and characteristic radii on melting and resolidification are also investigated. A numerical procedure to analyze the vaporization of metal when interacts with ultrashort laser pulse is also developed. The temperature dependent thermal characteristics as well as electron-lattice coupling factor have been considered. An iterative procedure based on energy balance and gas kinetics law is implied to track the axisymmetric liquid-vapor interface, which in turn is utilized to obtain the material removal rate.eng
dc.format.extentxi, 91 pageseng
dc.identifier.merlinb80703331eng
dc.identifier.oclc680652542eng
dc.identifier.urihttp://hdl.handle.net/10355/9263eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.subject.lcshAxial floweng
dc.subject.lcshFemtosecond laserseng
dc.subject.lcshLaser pulses, Ultrashorteng
dc.subject.lcshThin filmseng
dc.subject.lcshSolidificationeng
dc.subject.lcshMelting pointseng
dc.subject.lcshGaussian processeseng
dc.titleAn axisymmetric interfacial tracking model for melting-vaporization-resolidification in a thin metal film irradiated by pico to femtosecond pulse laserseng
dc.typeThesiseng
thesis.degree.disciplineMechanical and aerospace engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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