Methodology for Assessing Abrasive Particles Separation in the Axial Compressors Influencing Characteristics of the Aerial Vehicle Gas Turbine Engines: Dynamics Simulation in an Axial

Abstract

The paper describes effects of the aggressive environ-mental factors on the aircraft gas turbine engine compressor and identifies main causes and consequences of the two-component airflow passage containing solid particles through the compressor unit. It considers erosive wear, wear effect on the structural elements, their strength, compressor stability and the engine life as a whole. The currently used methods for preventing an erosive wear are assessed and a new method developed by the authors is proposed. The paper provides a detailed description and the operating principle of the proposed method. It describes a technique for assessing the abrasive particles separation effect on characteristics of the axial compressor of an aircraft gas turbine engine based on modern methods in numerical simulation of the blade machine and fluid dynamics equations implemented in the CFD packages. Geometric 3D models of the device and the axial compressor are developed, the spatial flow region is discretized by the finite element method. The paper provides mathematical description of the gas dynamics flow model with justification for the selected turbulence model. It determines the boundary conditions used in computing the model and main gas-dynamic characteristics of the blade machines. The paper presents simulation results, areas of the optimal operation modes, stable boundary and axial compressor locking, which would provide assessment of the separation effect on characteristics of the aerial vehicle gas turbine engine

Please cite this article in English as:

Popov S.S., Cherkasov A.N., Klepikov D.S. Methodology for assessing abrasive particles separation in the axial compressors influencing characteristics of the aerial vehicle gas turbine engines: dynamics simulation in an axial compressor. Herald of the Bauman Moscow State Technical University, Series Mechanical Engineering, 2025, no. 1 (152), pp. 37--58 (in Russ.). EDN: VPWOWC

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