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Information × Registration Number 0216U996969, 0115U004927 , R & D reports Title Research and modeling of unsteady physical processes in solids and gases. popup.stage_title Head Efremenko Vasyl Georgiyevich, Доктор технічних наук Registration Date 04-08-2016 Organization State Higher Educational Institution "Pryazovskyi State Technical University" popup.description2 The object of study - hydrodynamics simulations of dust in atmospheric flows, structure formation in high-Cr cast iron during quenching with the heating of the plasma jet, the spectral characteristics of ultrafine ZnO-based structures of, the technology for producing nanoparticles by pulsed plasma discharge. The purpose of the work - the creation of mathematical models of physical processes of the movement of dust particles in the atmosphere of unsteady flow and fluid movement that occurs in the transition of elastic waves on variable diameter pipes; the optical properties of finely dispersed systems undirected deposited on the substrate in an electric field; study the impact of modes of surface plasma hardening and initial microstructure on the abrasive wear resistance of white cast iron alloy; the development of an industrial process for producing a colloidal nano-solutions. Research methods - numerical modeling, electron microscopy, X-ray fluorescence, metallographic analysis, tests on physical and mechanical properties. The first section presents a theoretical analysis of the movement of dust particles in the non-stationary atmospheric flows. In the second section, the mathematical model of elastic vibrations in the pipe with variable section is developed. The third section presents the results of research of influence of modes of plasma quenching on surface hardness and abrasive wear resistance of the high chrome cast iron castings. The fourth section provides a method for producing nano-solutions using axial electro-thermal plasma accelerator. The fifth section shows the spectral characteristics of fine ZnO systems deposited in an electric field. In the sixth section the low-frequency induction currents in solid ferromagnets were investigated.54815481 Product Description popup.authors Єфременко Василь Георгійович Буланчук Олег Миколайович Джеренова Антоніна Василівна Жук Віктор Іванович Савінков Микола Олександрович Тютюнников Володимир Іванович Федун Віктор Іванович Цвєткова Олена Валентинівна Чабак Юлія Геннадіївна popup.nrat_date 2020-04-02 Close