FLOW VISUALIZATION STUDY IN POROUS-MEDIA USING X-RAYS

An X-ray technique has been developed to visualise the fluid flow beha viour in three-phase packed column. It can be used in both static and transient conditions. This technique is capable of differentiating bet ween various liquids or solids or both. It can be used to visualise th e flow in one, two or three dimensions. The technique has been used to study the complex flow behaviour of fluid (rivulets/droplets/film for mation, dispersion, etc.) in a porous medium in both static and dynami c conditions. It is shown that X-ray is a powerful and simple tool for visualisation and is very useful in research.