Special aspects of numerical simulation of a two-stage axial-flow compressor with defective blades

The paper presents the results of a stage of development of an analytical model for assessing the impact of various defects on the operation of an axial-flow compressor. Some recommendations on setting the numerical models for carrying out gas dynamic and strength analysis of compressor stages and b...

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Bibliographic Details
Published in:	Vestnik Samarskogo universiteta. Aèrokosmičeskaâ tehnika, tehnologii i mašinostroenie (Online) Vol. 20; no. 4; pp. 7 - 19
Main Authors:	Blinov, V. L., Zubkov, I. S., Iskortsev, E. Yu, Belyaev, O. V., Plishkin, P. I.
Format:	Journal Article
Language:	English
Published:	Samara National Research University 19-01-2022
Subjects:	axial-flow compressor blade defects blade row computational fluid dynamics gas turbine gas turbine engine
Online Access:	Get full text
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Summary:	The paper presents the results of a stage of development of an analytical model for assessing the impact of various defects on the operation of an axial-flow compressor. Some recommendations on setting the numerical models for carrying out gas dynamic and strength analysis of compressor stages and blades with account for various defects are proposed. Verification was carried out for the models presented: the results are also presented in the paper. On the basis of the verification results some special aspects of CFD-modeling are discussed. The requirements for the defects under investigation are defined. A classification of the defects that can be analyzed with the use of the developed mathematical description of the geometry of airfoils and blades with account of all proposed recommendations for the setting of the numerical model is presented.
ISSN:	2542-0453 2541-7533
DOI:	10.18287/2541-7533-2021-20-4-7-19