鉛直円管内粗大粒子系固気液三相スラグ流におけるスラグユニット

抄録

In some multiphase flows, the phase distribution as well as other flow characteristics may have a periodical or semi-periodical property along the tube axis. In such a flow, the flow structure corresponding to one period is referred to as “fundamental structure” of the flow in this paper. If the real flow structure of multiphase flow is assumed to be composed of repetition of the “fundamental structure”, then the mean value and the fluctuation value of flow characteristics such as the velocity and the pressure drop would be possible to be estimated using those for the “fundamental structure”. This paper deals, as a germinal stage, with concepts of the “fundamental structure” as well as “unit element” and “compound element”, which are basic elements to compose the “fundamental structure”, and also deals with an application of this concept to gas-liquid-large particle three-phase slug flow in which the “fundamental element” and the “compound element” are a large bubble etc.and a combination of a large bubble and a liquid slug etc., respectively.