A Method for Optical Liquid Flow Analysis

Abstract

This paper presents a modification of the optical marker method for fluid particle trajectories analysis. Known optical visualization methods involving the addition of uniform indicator particles, require special methods of illuminating a single section of the liquid. Other of the disadvantages of this method is also the need to record suitably quick sequence of images, as well as problems in obtaining information about the three-dimensional motion of particles. The proposed modification involves the use of a set of markers, each of which is uniquely identified. The paper presents the results of laboratory tests carried out using the suggested markers.