AXIAL AND CENTRIFUGAL COMPRESSORS FLOWS COMPUTATION RESEARCH METHODS AND RESULTS OF THEIR PRACTICAL USE

L.G. Boyko, H.S. Barisheva, A.E. Dyomin, U.P. Maksimov, K.V. Fecenko

Verifying computation methods of sub-, trance- and supersonic flow in the stages of axial and centrifugal compressors and their elements are presented. A place of 2D flow computation methods in the compressor design process is shown. Method of computation of subsonic flow in the multi-stage axial compressor (MAC) taking into account the turbulent exchange between flow steams, method of computation of transonic axisymmetric flow in a MAC (MW1<1,3), method of the high-pressure axial compressor stage (MW1<1,6 ) flow computation,  and also method of computation of do-, trans- and supersonic flow in the compressor cascades are presented. Also subsonic flow in the centrifugal superchargers computation method and of sub- and transonic (MW1<1,3) flow in the high-pressure centrifugal compressor stages computation method are presented. Verifying  is conducted of the presented methods by comparison of computation results with the experimental data and its results are shown.

Key words: axial compressor, centrifugal compressor, centrifugal supercharger, flow structure, summary performance, design