Barysheva O. The Aircraft Engines High-Pressure Centrifugal Compressor Stages Gas-Thermodynamic Parameters Analysis Method

The object is the aviation GTE compressor high-pressure centrifugal stage (HPCS) with axial-radial spatial impellers. The aim is the design of sub- and transonic axysimmetric flow analysis prediction method for HPCS. The methods are design-theoretical ones. The novelty includes: the design of sub- and transonic axysimmetric flow analysis prediction method for HPCS is proposed; the new calculation investigation data about high-pressure impeller with splitter blades transonic flow and this impeller modernization; the new data about the modern aviation GTE HPCS rotor and vaned diffuser (VD) flow features with or without air bleeding modes; the new data about the influence of vaned diffuser geometrical parameters changing on flow structure and modern GTE HPCS summary performances. The results are HPCS gasdynamic parameters flow fields and summary performances, the determination of air bleeding place and quantity from setting; the designing quality improvement. The branch is the aviation engine engineering.