Developing a mathematical model and a computer program for a preliminary design of a transonic axial compressor

This paper presents a mathematical model underlying the program for calculating and designing axial compressors. The process of calculating pressure loss in the elements of the axial compressor’s stage flow path is described. The loss coefficient consists of losses on the limiting surfaces, secondar...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-05, Vol.1891 (1), p.12019
Main Authors: Borovkov, A.I., Galerkin, Yu. B., Solovieva, O.A., Drozdov, A.A., Rekstin, A.F., Semenovsky, V.B., Brodnev, P.N.
Format: Article
Language:English
Subjects:
Algorithms
Constraining
Impellers
Incidence angle
Mathematical analysis
Mathematical models
Physics
Preliminary designs
Pressure loss
Turbocompressors
Viscous flow
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Summary:This paper presents a mathematical model underlying the program for calculating and designing axial compressors. The process of calculating pressure loss in the elements of the axial compressor’s stage flow path is described. The loss coefficient consists of losses on the limiting surfaces, secondary losses and profile losses. The effect of roughness on the pressure loss is taken into account by introducing the corresponding empirical coefficient. An algorithm for calculating the blades’ and vanes’ angles of the impeller and the guide apparatus is presented by calculating the incidence angle and the lag angle of the flow. The flow lag angle is the sum of the lag angle of the flow on the profile and the lag angle due to viscous flow on the limiting surfaces.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1891/1/012019