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Vane Clocking Effects on Stator Suction Side Boundary Layers in a Multistage Compressor
Joint Authors
Key, Nicole L.
Smith, Natalie R.
Source
International Journal of Rotating Machinery
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-11
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The stator inlet flow field in a multistage compressor varies in the pitchwise direction due to upstream vane wakes and how those wakes interact with the upstream rotor tip leakage flows.
If successive vane rows have the same count, then vane clocking can be used to position the downstream vane in the optimum circumferential position for minimum vane loss.
This paper explores vane clocking effects on the suction side vane boundary layer development by measuring the quasi-wall shear stress on the downstream vane at three spanwise locations.
Comparisons between the boundary layer transition on Stator 1 and Stator 2 are made to emphasize the impact of rotor-rotor interactions which are not present for Stator 1 and yet contribute significantly to transition on Stator 2.
Vane clocking can move the boundary layer transition in the path between the wakes by up to 24% of the suction side length at midspan by altering the influence of the Rotor 1 wakes in the 3/rev modulation from rotor-rotor interactions.
The boundary layer near the vane hub and tip experiences earlier transition and separation due to interactions with the secondary flows along the shrouded endwalls.
Flow visualization and Stator 2 wakes support the shear stress results.
American Psychological Association (APA)
Smith, Natalie R.& Key, Nicole L.. 2016. Vane Clocking Effects on Stator Suction Side Boundary Layers in a Multistage Compressor. International Journal of Rotating Machinery،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1107029
Modern Language Association (MLA)
Smith, Natalie R.& Key, Nicole L.. Vane Clocking Effects on Stator Suction Side Boundary Layers in a Multistage Compressor. International Journal of Rotating Machinery No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1107029
American Medical Association (AMA)
Smith, Natalie R.& Key, Nicole L.. Vane Clocking Effects on Stator Suction Side Boundary Layers in a Multistage Compressor. International Journal of Rotating Machinery. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1107029
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107029