Visualization of Water Toroidal Vortex by Multicolor Particle Image Velocimetry

The work is devoted to the study of the water flow created by a pump in a cuvette by mul-ticolor particle image velocimetry. Multicolor particle image velocimetry method is another modification of the particle image velocimetry. The main difference between this method and other modifications is that not one laser plane is used as probing radiation, but several with different wavelengths. Such modernization makes it possible to obtain velocity vector fields simultaneously in several laser planes. The paper describes an algorithm for carrying out measurements using multicolor particle image velocimetry and processing the recorded data. An experimental setup has been developed and a series of experiments has been carried out, as a result of which the structure of the flow under study has been visualized, vector velocity fields in three laser planes have been obtained. © 2022 National Research Nuclear University. All rights reserved.