Method for calculating the longitudinal dimensions of hydrodynamic cavitation devices with a pressure jump

Abstract

Cavitation technologies are widely used in many industries: from heavy machine building to the food industry. Such a wide range of different industries testifies to the variety of tasks that can be solved using these technologies: to disinfect wastewater, carry out various processes of dispersion, mixing, homogenization and many other processes. Depending on the source-cause of cavitation, ultrasonic and hydrodynamic are distinguished. The working process of hydrodynamic cavitation is rather complicated, but the development of a correct closed mathematical model allows one to calculate the parameters of cavitation devices. The applied calculation method is important in this. The article describes the workflow of a hydrodynamic cavitation device with a pressure jump and proposes a method for calculating such devices. The calculation problem is solved by the method of successive approximations and allows one to determine the longitudinal dimensions of the device. The industrial approbation of the device, calculated by this method, showed good convergence of theoretical and experimental data.