Advances in two-phase flow modeling

Solutions of two-phase flow problems utilize modeling. The term `Mechanistic Modeling' was adopted for modeling where the physical phenomenon is approximated by taking into consideration the most important processes and neglect other less important effects that can complicate the problem but do not add considerably to the accuracy of the solution. Mechanistic modeling should be sufficiently close to the natural phenomenon as the flow pattern involved should not be overlooked. Yet it will be sufficiently simple so that the solution is amenable with reasonable analytical or numerical efforts.