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Information × Registration Number 0201U003505, 0196U009397 , R & D reports Title Experimental and theoretical study of gas flows in complex-profile mains in the presence of a gas - phase change and solid particles. popup.stage_title Head Tymoshenko V.V., Registration Date 22-03-2001 Organization Institute of Technical Mechanics of the National Academy of Sciences and National Space Agency of Ukraine popup.description2 Research object - continuous and heterogeneous media flows in flow passages of rocket and technological systems taking into account wave effects, phase tramitions, chemical transformations, distributed and local hydraulic resistances. Purpose of the work - to carry out research of hydrogasdynamic parameters of continuous and heterogeneous media as applied to developed sys- tems of rocket and space technology and technological devices. Research methods - a theoretical method based on numerical methods of solving differential equations and an experimental method usung methods of modelling the processes on laboratory equipment. The given report presents the results of developing the mathematical modelling methods for nonsteady flows in the systems of connected hydraulic volumes and branched pipe lines. On the basis of these methods the research of nonsteady operating conditions of controlling liquid-propellant jet engine installations of launch-vehicles (LV) and space vehicles (SV) on different flight sta ges has been carried out; LV instrumenta- tion sectuon venting on active flight leg has been investigated. The advantage of the method of controlling the two-phase flow characteristics with additional gas feeders over the traditional geometric in gasdynamic passages of tech- nological devices for accelerating and heating the solid particles with a gas flow has been shown. Rational parameters grounding by calculation has been carried out for gasdynamic passages of burner devices. Nonstationary ideal-gas flow regimes realizing at stationary boundary conditions and distributions of the vapour-air-dropwise mixture parameters taking into account phase transi- tions depending on heat exchange conditions on channel walls have been revealed. On the installation created an experimental investigation into the processes of hydrocarbon fuel conversion has been carried out. This installation allows to search for optimal regimes of preparing and burning the hydrocarbon fuels. A full-scale stand has been created to investi gate into the processes of SV sections thermostatic control under full-scale conditions. The stand is tested and can be adapted for testing the Zenit, Tsiklon and Dnepr LV fairings. Product Description popup.authors popup.nrat_date 2020-04-02 Close