Congratulations to Mr. Kostantinos Pandis who successfully defended his Master Thesis at the Technical University of Crete. Mr. Pandis worked on Modeling Single and Multi-phase flows in stratified petroleum reservoirs using Comsol Multiphysics, with particular emphasis on Water Flooding and Tracer Dispersion processes, under the supervision of Dr. Chr. Chatzichristos and Dr. A.G. Yiotis at the NCSR ‘Demokritos’. Msc thesis_Modeling single & 2-phase flow