Author(s)

A. Amoresano, G. Langella, C. Noviello

Abstract

Experimental analysis of air bubble inside a centrifugal pump A.Amoresano, G.Langella, C.Noviello Naples University "Federico H", Energetic and Mechanical Engineering Department. Abstract Many industrial processes show, in some particular cases, two phase flows. The two phase flow takes place when thermal and physical conditions like heat exchange, pressure drop, viscous stresses, etc., have uncontrolled changes. In other cases the process requires a two phase flow motion like in pipelines for water-cool mixtures. In all these cases literature [1][2][3] shows the flow observed inside the impeller is not properly described by classical Euler's equations. It is still possible to approximately reformulate the Euler's equations [2], when considering the interaction between gas and liquid phase. This analytical approach, even tough incisive, has some important restrictions. It must take into consideration the absence of thermal fluxes between the two phases, the absence of vi

Keywords