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Experimental Study of the Effect of Radially Distorted Inflow on a Contrarotating Fan Stage
Joint Authors
Source
International Journal of Rotating Machinery
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-26
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The paper reports results of a detailed study of hub- and tip-strong radial inflow distortion on the performance of a low speed, high aspect ratio (3.0) contrarotating fan stage.
The distortion screen (placed upstream of the first rotor) covers 1/3 of the span of the blade near the hub and the casing for hub-strong and tip-strong inflow distortions, respectively.
The performance of the contrarotating fan was investigated under both the radially distorted inflows and compared with the clean inflow conditions under different speed combinations of rotor-1 and rotor-2.
The hub-strong radial distortion reduces the overall performance (pressure rise and efficiency) as well as the operating range by about 2 to 4% under the different speed combinations.
On the other hand, it is interesting to observe that the tip covered radial distortion not only improves the pressure rise, but also increases the overall operating range by about 6 to 8%.
There was, however, a 6 to 8% decrease in efficiency in this case as compared to 12 to 15% for hub-strong radial inflow distortion.
The results reveal the physics of the effects of radial inflow distortion on the overall performance of the contrarotating fan stage.
American Psychological Association (APA)
Mistry, Chetan& Pradeep, A. M.. 2014. Experimental Study of the Effect of Radially Distorted Inflow on a Contrarotating Fan Stage. International Journal of Rotating Machinery،Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-476795
Modern Language Association (MLA)
Mistry, Chetan& Pradeep, A. M.. Experimental Study of the Effect of Radially Distorted Inflow on a Contrarotating Fan Stage. International Journal of Rotating Machinery No. 2014 (2014), pp.1-14.
https://search.emarefa.net/detail/BIM-476795
American Medical Association (AMA)
Mistry, Chetan& Pradeep, A. M.. Experimental Study of the Effect of Radially Distorted Inflow on a Contrarotating Fan Stage. International Journal of Rotating Machinery. 2014. Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-476795
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-476795