FILM THICKNESS MEASUREMENT IN ANNULAR TWO-PHASE FLOW USING A FLUORESCENCE SPECTROMETER TECHNIQUE. Part II. Studies of the shape of disturbance waves

摘要

A set of experiments is described in which the shape in space of the large disturbance waves in annular flow has been determined by use of the fluorescence technique, to obtain amplitude/time data, together with conductance probes to allow a simultaneous velocity measurement. The waves are typically, of amplitude 5 times the mean liquid film thickness and have an axial length dimension of the order ½ - 1 inch.