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TECHNICAL PAPERS

Near Wall Measurements for a Turbulent Impinging Slot Jet (Data Bank Contribution)

[+] Author and Article Information
Jiang Zhe, Vijay Modi

Department of Mechanical Engineering, Columbia University, New York, NY 10027

J. Fluids Eng 123(1), 112-120 (Nov 17, 2000) (9 pages) doi:10.1115/1.1343085 History: Received May 26, 2000; Revised November 17, 2000
Copyright © 2001 by ASME
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References

Figures

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Impinging slot jet configuration and hot wire probe with probe/stage/plate assembly
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Configuration during calibration of the probe/stage/plate assembly along with a removable leading edge
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Variation of mean velocity V/Vcl and normalized root mean square velocity 〈vv0.5/Vcl with x/B across the slot at (H−y)/B values of 0.3, 1.0, and 5.4
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Variation of mean velocity U/Vcl with y/B along impingement wall for H/B=2, (a) Re=10,000, (b) Re=20,000, and (c) Re=30,000
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Variation of mean velocity U/Vcl with y/B along impingement wall for Re=20,000 (a) H/B=3, (b) H/B=4, (c) H/B=5, (d) H/B=6, (e) H/B=7, and (f) H/B=8, and (g) H/B=9.2 symbols as in Fig. 4
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Normal stress 〈uu〉/V cl2 contours for H/B=2 (a) Re=10,000, (b) Re=20,000, and (c) Re=30,000. Contour 1 through 8 correspond to stress levels from 0.005 to 0.04 in increments of 0.005. (d) Variation of 〈uu0.5/uτ with y+ at x/B=4 for H/B=2. Wall units are defined using shear stress at each Re=10,000, 20,000, and 30,000.
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Normal stress 〈uu〉/V cl2 contours at Re=20,000 (a) H/B=3, (b) H/B=4, (c) H/B=5, and (d) H/B=6. Contour 1 through 8 correspond to stress levels from 0.005 to 0.04 in increments of 0.005.
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Variation of mean velocity u+ for H/B=4,Re=20,000 with y+ at four streamwise locations (a) x/B=2, (b) x/B=4, (c) x/B=7, and (d) x/B=9. The law of the wall is also shown.
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Variation of skin friction coefficient along the impingement wall for Re=10,000, 20,000, and 30,000 (a) H/B=2, (b) H/B=3, and (c) H/B=4
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Variation of skin friction coefficient along impingement wall for Re=20,000 (a) H/B=2, 3, 4 and (b) H/B=5, 6, 7, 8, 9.2

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