Gas dynamic improvement of the axial compressor design for reduction of the flow non-uniformity level

International Conference on Information Technologies in Business and Industry 2016

计算机科学;经济学;工业技术

Matveev, V.N.^1 ; Baturin, O.V.^1 ; Kolmakova, D.A.^1 ; Popov, G.M.^1

Samara National Research University, 34, Moskovskoe shosse, Samara

443008, Russia^1

关键词: Axial compressors;    Dynamic stress;    Engine design;    Flow passage;    Non-uniformities;    Nonuniformity;    Pressure peaks;    Rotor blades;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/803/1/012096/pdf
DOI  :  10.1088/1742-6596/803/1/012096

来源: IOP

【 摘 要 】

Circumferential nonuniformity of gas flow is one of the main problems in the gas turbine engine. Usually, the flow circumferential nonuniformity appears near the annular frame located in the flow passage of the engine. The presence of circumferential nonuniformity leads to the increased dynamic stresses in the blade rows and the blade damage. The goal of this research was to find the ways of the flow non-uniformity reduction, which would not require a fundamental changing of the engine design. A new method for reducing the circumferential nonuniformity of the gas flow was proposed that allows the prediction of the pressure peak values of the rotor blades without computationally expensive CFD calculations.