Abstract
The methods of loss in the flow parts of power plants (PP) of aircraft, gas-pumping units (GPU), gas turbine engines (GTE), and gas turbine plants (GTP) accounting are considered. A new method for approximating gas-dynamic characteristics and calculating the efficiency coefficients of the units including compressors and turbines optimizing their geometry and modes is proposed. To verify the method, the results of factory tests, 2D and 3D CAD/CAE-simulation of the flow and gas-dynamic characteristics of the flow part components, including blowing of the blade profile gratings were used. It is shown that this method can be effectively used to optimize the flow parts geometry and to select the modes of operation of input and output devices, blade rims as part of compressors and turbines, and transitional ducts between cascades. It is suggested to use the method to control the change in the characteristics of the GTE units during operation. This can significantly improve the accuracy of parametric diagnostic GTP and GTD. The proposed method can be used to monitor the state of aggregates and systems in the power engineering, in transport, and in other areas.
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