A process for the two-dimensional locally and temporally high-resolution determination of the droplet size and droplet size distribution in two-phase - flows

摘要

A method for the calibration free measurement of the drop sizes, and the droplet size distribution in two-phase - flows, in the case of the linearly polarized light directed to a stream of drops, wherein the light, this leads to a light section forming the examination zone is formed by the current, on the drop in the examination zone is scattered, further wherein the scattered light simultaneously in two dimensions in a temporally resolved locally and the scatter plane with respect to its perpendicular and parallel to the scatter plane polarized signal components of the droplets of two detectors for the same time is taken up separately from one another and a ratio of the two signal components to be formed, in which the finally, by comparison of the signal content ratio with calculated curves the droplet size and the distribution is determined, wherein, on the one hand, the mean value of the signal component relationships for each drop of all droplets detected in the examination zone is formed and, on the other hand, a ratio of in each case over all of the drops in the examination zone is formed and summed signal components from a comparison of these two differently formed, the distribution width ratios..