Jason A. Sutula was awarded the Degree of Doctor of Philosophy in the College of Science and Engineering from the University of Edinburgh in June 2009.  The title of Jason’s doctoral thesis was “Towards a Methodology for the Prediction of Flame Extinction and Suppression in Three-Dimensional Normal and Microgravity Environments.”  The focus of this project was to develop a reliable and inexpensive methodology for the prediction of flame extinction and suppression in any three-dimensional environment using current computational fluid dynamics techniques.  This work contributed a theoretical framework for a generalized Damköhler number that was used for the prediction of local flame extinction through realistic combustion scenarios: a blow-off case (i.e., rapid increase in strain rate) and localized flame extinction (i.e., flame shrinking) in a low-strain dilution case utilizing carbon dioxide. The model predictions demonstrated the potential of a Damköhler methodology for the prediction of extinction in any three-dimensional environment.