Yudin A. Direct, hybrid and inverse problems for optimal design of flowing pass elements of turbomachines

The object is flowing path of turbomachine; the aim are devoted to the development of methods of the solution of direct, hybrid and inverse problems of quasi-three-dimensional stream calculation in cascades of turbomachines which are taking into account features of the computing process organization at the solving of optimum designing problems of cascades taking into account profile and secondary losses; methods are the aerodynamic calculation, nonlinear programming; the newness are offered the new methods of the solution allowing from a uniform methodological position to solve, as the inverses, so hybrid and direct problems of calculation quasi-three-dimensional stream in channels of turbomachines cascades; has received theoretical confirmation earlier empirically established influence of local wavy outlines of a structure on decrease in secondary losses in a turbomachine cascades; the main include the complex of computer programs for calculation of stream in a layer of variable thickness is developedwithin the framework of direct, hybrid and inverse problems and for the solution of a problem of optimum profiling of cascades of turbomachines, improvement of a configuration of atlas nozzle blade of turbine therefore the low level both profile and secondary losses of a cascade is provided; the field is turbine machinery.