Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor
Joint Authors
Baek, Jehyun
Oh, Seonghwan
Choi, Minsuk
Jung, Yohan
Source
International Journal of Rotating Machinery
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-07
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This paper presents a numerical investigation of the effects of a nonuniform tip clearance profile on the performance and flow field in a centrifugal compressor with a vaneless diffuser.
This study focuses in particular on the magnitude and location of the wake.
Six impellers with different tip clearance profiles were tested in the flow simulations.
The accuracy of the numerical simulations was assessed by comparing the experimental data with the computational results for a system characterized by the original tip clearance.
Although the performance improved for low tip clearances, a low tip clearance at the trailing edge improved the compressor performance more significantly than a low tip clearance at the leading edge.
The flow field calculated for a system characterized by a low tip clearance at the trailing edge produced a more uniform velocity distribution both in the circumferential and in the axial directions at the impeller exit because the wake magnitude was reduced.
As a consequence, this impeller provided a better potential for diffusion processes inside a vaneless diffuser.
American Psychological Association (APA)
Jung, Yohan& Choi, Minsuk& Oh, Seonghwan& Baek, Jehyun. 2012. Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-464126
Modern Language Association (MLA)
Jung, Yohan…[et al.]. Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor. International Journal of Rotating Machinery No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-464126
American Medical Association (AMA)
Jung, Yohan& Choi, Minsuk& Oh, Seonghwan& Baek, Jehyun. Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-464126
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464126