Rogovyi A. Development of the theory and designing methods of vortex chamber superchargers

Research object: hydromechanical processes occurring in superchargers with the vortex chamber. The purpose of research is development of the theory and designing methods of the vortex chamber superchargers for increasing of technical and economic efficiency of fluid handling systems with the contents of solid components under adverse operating conditions. Research methods: theoretical investigations were carried out on mathematical models of three levels. Mathematical models are a set of nonlinear differential equations in partial and total second-order derivatives, solution of which were carried out by numerical methods using application software packages. The adequacy of mathematical models was verified by comparing the results of numerical calculation with the results of data from physical experiment. Theoretical and practical results: the theory and methods of calculation of jet vortex chamber superchargers have been developed, which have higher indicators of technical and economic efficiency and allow pumping media of different aggregate states under unfavorable operating conditions. Scientific novelty: the concept of vortex chamber superchargers was first developed on the basis of the use of hydrodynamic effects of rotating flows, which determines their energy efficiency; the existence of two different working processes for the physical essence was proved for the first time, and the relationships providing the optimal parameters of energy efficiency were established; the physical picture of the flow was established for the first time when working on heterogeneous media with a content of solid particles and gas bubbles. Theoretical studies of working processes in vortex chamber have been further developed. The level of implementation: the results of the work were introduced at the enterprises of Ukraine and Poland, and also used in the educational process of NTU "KhPI" and V. Dahl EUNU. Area of use: hydraulic and pneumatic systems in metallurgical, construction, chemical, nuclear industry, agriculture.