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Information × Registration Number 0213U000331, 0112U000668 , R & D reports Title Gas-dynamic calculation and profiling of schoulder-blades of axial turbines popup.stage_title Head Borisenko Valeriy Dmytrovich, Registration Date 31-01-2013 Organization National university of Shipbuilding named after admiral Makarov popup.description2 The methods for more increasing of efficiency rates of axial flow turbines of the power gas-turbine engines are offered. The efficiency rates grow is obtained by improving the approaches of the gas-dynamic computation and also perfection of the nozzle blades and the working blades geometric modeling which apply a complex spatial shape. The method - based application which enables to obtain gas-dynamic computation with an allowance for the spatial steam type in side of the blade rows of a multistage axial flow turbine. Both the meridional cross-section of a turbine and the blade profiles are generated. The geometrical characteristics of plan blade rows are defined by the application which makes it possible to able the energy loss rates of the blade rows and overall turbine is based on the experimental statistics date. Both results of the geometrical modeling blades and the velocity triangles of profiles, which are generated along a turbine flow path height, are presented on a viewing screen. In the research special attention is taken for geometrical modeling of the spatial blades of the axial flow turbines which is based on applying the rational Bezier's curves and the rational Bezier's surfaces. The method gives possibility to get consistent the base points of characteristic polyhedron of Bezier's surfaces which approximately define both the profile shape and the twisted blades shape. The method for geometrical modeling of blade cooling channels is provided for makes ability to cool the blade of high-temperature gas-turbines. The given blades of the cooled turbines were analyzed by modern software of computational fluid dynamics FlowVision. Results of the research could be applied for develop new and for modernization exist turbines of height-power gas-turbine engines. Product Description popup.authors Котляр Д.В. Устенко І.В Устенко С.А. popup.nrat_date 2020-04-02 Close