Investigation of the Stage Performance and Flow Fields in a Centrifugal Compressor with a Vaneless Diffuser
Joint Authors
Turunen-Saaresti, Teemu
Jaatinen-Värri, Ahti
Grönman, Aki
Backman, Jari
Source
International Journal of Rotating Machinery
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-23
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The effect of the width of the vaneless diffuser on the stage performance and flow fields of a centrifugal compressor is studied numerically and experimentally.
The diffuser width is varied by reducing the diffuser flow area from the shroud side (i.e., pinching the diffuser).
Seven different diffuser widths are studied with numerical simulation.
In the modeling, the diffuser width b/b2 is varied within the range 1.00 to 0.50.
The numerical results are compared with results obtained in previous studies.
In addition, two of the diffusers are further investigated with experimental measurement.
The main finding of the work is that the pinch reduces losses in the impeller associated with the tip-clearance flow.
Furthermore, it is shown that a too large width reduction causes the flow to accelerate excessively, resulting in a highly nonuniform flow field and flow separation near the shroud.
American Psychological Association (APA)
Jaatinen-Värri, Ahti& Grönman, Aki& Turunen-Saaresti, Teemu& Backman, Jari. 2014. Investigation of the Stage Performance and Flow Fields in a Centrifugal Compressor with a Vaneless Diffuser. International Journal of Rotating Machinery،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-448828
Modern Language Association (MLA)
Jaatinen-Värri, Ahti…[et al.]. Investigation of the Stage Performance and Flow Fields in a Centrifugal Compressor with a Vaneless Diffuser. International Journal of Rotating Machinery No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-448828
American Medical Association (AMA)
Jaatinen-Värri, Ahti& Grönman, Aki& Turunen-Saaresti, Teemu& Backman, Jari. Investigation of the Stage Performance and Flow Fields in a Centrifugal Compressor with a Vaneless Diffuser. International Journal of Rotating Machinery. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-448828
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448828