Title page for ETD etd-09052009-040759


Type of Document Master's Thesis
Author Fulakis, Chris
URN etd-09052009-040759
Title A theoretical analysis of combined melting and vaporization using the boundary element method
Degree Master of Science
Department Mechanical Engineering
Advisory Committee
Advisor Name Title
Vick, Brian L. Committee Chair
Diller, Thomas E. Committee Member
Nelson, Douglas J. Committee Member
Keywords
  • Boundary element methods
Date of Defense 1993-09-05
Availability restricted
Abstract

Melting and vaporization of solids occur very often in nature and in man-made processes. Many analytical and numerical solutions exist for solving the temperature field in the liquid and solid regions, but inaccuracies persist in tracking the phase change interfaces and the numerical solution of the temperature field is usually cumbersome. The Boundary Element Method is proposed as an accurate, efficient way to solve for the temperature field and the interface positions in a phase change problem involving combined melting and vaporization. When comparing to specific one-dimensional test cases, accurate results arc obtained when using a sufficiently small time step. A comparison is made to existing data from a laser drilling experiment. The anticipated physical effects which occur on semi-infinite and finite domains arc confirmed. Consequently, this method can be used to model natural and industrial phenomena involving phase change.

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