Hydrodynamics features in cavitation devices under tangent medium input

¹ Ivan Puluj TNTU, Faculty of Industrial Machinery Engineering, str. Ruska 56, 2-80 Teronpil vitenko@tntu.edu.ua, nazar_horodysky@ukr.net, Ukraine
² Lublin University of Technology, Faculty of Mechanical Engineering, Nadbystrzycka 36 Street, 20-618 Lublin Poland p.drozdziel@pollub.pl, a.rudawska@pollub.pl

^* Corresponding author: vitenko@tntu.edu.ua

Abstract

Theoretically analysed design features of the working section of a hydrodynamic cavitation device with swirling input. Using the numerical methods of SolidWorks software and the Flow simulation module, fluid flow modeling was performed to describe similar processes. The comparison of the results of visual and experimental studies has been carried out. Visual observations indicate that the life cycle of vapor-gas bubbles and cavities in the design under study can be divided into several periods, in particular the formation of vapor-gas bubbles, their growth, generation of cavities, their volume increase, transformation and destruction. The influence of input and output hydrodynamic and technological parameters of the flow and design features on the character of the cavitation area and the form of cavitation were studied. According to the results of theoretical and experimental research, rational mode of operation of the cavitation device is proposed.