The design of vaned diffusers of centrifugal compressors based on the given velocity distribution

Kalinkevych, Mykola Vasylovych; Obukhov, O.; Смирнов, А. А.; Skoryk, Andriy

doi:10.1533/9780857095350.2.61

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…International Journal of Rotating Machinery 3 Velocity distribution, which provides the preseparation condition of the boundary layer along the pressure surface of the vane, is defined by the formula [8]:…”

Section: Design Methodsmentioning

confidence: 99%

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Design Method for Channel Diffusers of Centrifugal Compressors

Kalinkevych

Skoryk

2013

International Journal of Rotating Machinery

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The design method for channel diffusers of centrifugal compressors, which is based on the solving of the inverse problem of gas dynamics, is presented in the paper. The concept of the design is to provide high pressure recovery of the diffuser by assuming the preseparation condition of the boundary layer along one of the channel surfaces. The channel diffuser was designed with the use of developed method to replace the vaned diffuser of the centrifugal compressor model stage. The numerical simulation of the diffusers was implemented by means of CFD software. Obtained gas dynamic characteristics of the designed diffuser were compared to the base vaned diffuser of the compressor stage.

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Section: Design Methodsmentioning

confidence: 99%

“…Kalinkevych et al [8] showed that efficiency of the vaned diffuser (VD) of centrifugal compressor may be improved by using such a concept. In this work the center line shape of the vanes with constant thickness was obtained by defining the preseparation velocity distribution along the pressure surface of the vane.…”

Section: Introductionmentioning

confidence: 99%