Effects of Different Blade Angle Distributions on Centrifugal Compressor Performance | Zendy

Pekka Röyttä | Zendy; Aki Grönman | Zendy; Ahti JaatinenVärri | Zendy; Teemu Turunen-Saaresti | Zendy; Jari Backman | Zendy

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Effects of Different Blade Angle Distributions on Centrifugal Compressor Performance

Author(s) -

Pekka Röyttä,

Aki Grönman,

Ahti JaatinenVärri,

Teemu Turunen-Saaresti,

Jari Backman

Publication year - 2009

Publication title -

international journal of rotating machinery

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.265

H-Index - 33

eISSN - 1026-7115

pISSN - 1023-621X

DOI - 10.1155/2009/537802

Subject(s) - impeller , centrifugal compressor , computer science , gas compressor , turbulence , mechanics , algorithm , physics , thermodynamics

A centrifugal compressor with three different shrouded 2D impellers is studied numerically. All impellers have the same dimensions, and they only differ in channel length and geometry. Noticeable differences in efficiency are observed. Two different turbulence models, Chien's k-ε and k-ω SST, are compared. For this case, k-ω SST was found more realistic. The hypothesis that pressure losses in a curved duct andin an impeller passage behave similarly is suggested and found inadequate

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