Investigation of the influence of non-axisymmetric elements in secondary air system on gas turbine engine flow parameters, the temperature field and deformation of components

This article deals with the definition of the parameters of air flow in the pre-oil cavity in the compressor support. The two types of interfaces were compared in CFD analysis. Thermal fields of parts were obtained and strength analysis of support parts were calculated. During the work, the heat transfer coefficients obtained by CFD analysis and calculations using semi-empirical expressions were compared. The effect of the presence of holes in the pipe system to the circumferential displacement of rear radial-face contact seal stator were analyzed.