Response of a Laminar Separation Bubble to an Impinging Wake

[+] Author and Article Information
J. P. Gostelow, R. L. Thomas

Department of Engineering, University of Leicester, Leicester, LE1 7RH, UK

J. Turbomach 127(1), 35-42 (Feb 09, 2005) (8 pages) doi:10.1115/1.1829729 History: Received December 01, 2002; Revised March 01, 2003; Online February 09, 2005
Copyright © 2005 by ASME
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Contours of rms of velocity for 9 phases of the cycle
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Ensemble-averaged velocity contours for 9 phases of the cycle
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Boundary layer velocity profiles at different phases for x=0.750 m
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Representative velocity traces at y=2.0 mm
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(Color) (a) (upper) Measured x∼t diagram for intermittency with velocity traces and relaxation parameter superimposed and (b) (lower). Measured x∼y diagram of ensemble-averaged velocity contours in undisturbed boundary layer showing outline of separation bubble.
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Measured intermittency distribution (○) compared to Narasimha’s universal distribution
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Schematic view of flat plate and wake generator
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Measured pressure distribution compared with self-similar distribution
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Velocity perturbation contours at x=0.65 m
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RMS of velocity at x=0.65 m




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