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Information × Registration Number 0213U001269, 0111U002267 , R & D reports Title Calculations aerodynamic perfection elements flow part of steam and gas turbines popup.stage_title Head Anatoliy Boiko, Registration Date 07-02-2013 Organization The Kharkov state polytechnical university popup.description2 Research object - aerodynamic processes in flowing pass of turbo-machine. Objective - the gas-dynamic descriptions of the blade cascades. Aim - aerodynamically perfect profiles calculations for power steam turbines nozzle and rotor blades that are designed to modernize turbines which operate on power plants; transient and output diffusers calculations for advanced energy and transport turbines. Theoretical and practical results - the method for the solution of direct and inverse problems of flow in cascades of turbo-machines in a layer of variable thickness at the axisymmetric stream surface is developed; it takes into account the features of organization of calculable process in the optimal design problems of nozzle and rotor cascades of turbo-machine; the computer programs for the calculation of flow within the limits of direct and inverse problems and for the solution of the optimal design problem of cascades taking into account the profile and second losses is developed; the new profiles for nozzle and rotor blade profiles are calculated. Novelty - it is developed the method that allows to solve both the inverse and direct problems for the flow on an arbitrary axisymmetric stream surface based on a single methodological position; it provides the same accuracy of results for both problems; direct and inverse problems are divided into separate sub-problems that can be solved in any sequence or at the same time; it provides the ability to control some parts of the designed blade in terms of strength and processability and can significantly reduce design time; separate sub-problems are solved by methods of non-linear programming, which do not require storing significant amounts of information; the technology of optimal design for high-deflection blade cascade is developed; blade cascade of power high pressure steam turbine is designed with wavy contours of blade profiles; the second losses in the blade cascades with such designed profiles was much lower than with atlas profiles usage. Degree of the implementation - Turbine Department of NTU "KhPI",VAT "Turboatom". Industry of the use - Scope - scientific research and design of turbine and energy engineering enterprise. Product Description popup.authors Бараннік Валентин Сергійович Гапон Галина Олександрівна Кісельова Наталля Михайлівна Кудлай Володимір Олександрович Лапузін Олександр Вікторович Марценюк Світлана Васильовна Суботович Валерій Петрович Темченко Сергій Олександрович Юдін Олександр Юрійович Юдін Юрій Олексійович popup.nrat_date 2020-04-02 Close