Effective property models for homogeneous two-phase flows

Unified macro-to-microscale method to predict two-phase frictional pressure drops of annular flows

Stability of a liquid jet into incompressible gases and liquids

Two-Phase Flow

Studies on two-phase flow and flow boiling inside micro-scale channels published approximately until the middle of last decade were characterized by drastic discrepancies among authors. Frequently, differences of about one order of magnitude were observed for experimental results obtained at almost similar conditions. Parcels of these differences were related to the use of inaccurate experimental techniques and also for not taking into account all the relevant experimental parameters, such as surface roughness, presence of thermal instabilities, and flash gas effects. Therefore, it was not surprising that the proposed models and correlations worked reasonably well for restricted databases, mainly those considered during their development. Transitions between micro- and macro-scale were proposed based only on channel dimensions and manufacturing processes without taking into account heat transfer and two-phase flow mechanistic aspects. During this early period, most authors were just theorizing about the r...

C. Mata

Papers

Power law and composite power law friction factor correlations for laminar and turbulent gas–liquid flow in horizontal pipelines

Stability of stratified gas-liquid flows