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TECHNICAL PAPERS

A Numerical Investigation on the Development of an Embedded Streamwise Vortex in a Turbulent Boundary Layer With Spanwise Pressure Gradient

[+] Author and Article Information
InSub Lee, Hong Sun Ryou

Department of Mechanical Engineering, Chung-Ang University, 221 HeukSuk-Dong, DongJak-Gu, Seoul, 156-756 Korea

Seong Hyuk Lee

Research Institute of Production Engineering, Chung-Ang University, 221 HeukSuk-Dong, DongJak-Gu, Seoul, 156-756, Korea

Ki Bae Hong

Department of Thermal Engineering, Choong-Ju University, Choong-Ju Korea

Soo Chae

Department of Automobile, Kunjang College, Kunsan, Korea

J. Fluids Eng 123(3), 551-558 (Mar 12, 2001) (8 pages) doi:10.1115/1.1378022 History: Received January 10, 2000; Revised March 12, 2001
Copyright © 2001 by ASME
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References

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Figures

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Schematic diagram for the experiment of Shizawa and Eaton 9
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Comparison between the predictions and the measurements of Shizawa and Eaton 9 for streamwise mean velocity (case 1, Ue=16.5 m/s). (a) At slot 2; (b) at slot 5
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Comparison of predicted turbulent normal stresses with experimental data of Shizawa and Eaton (1992) (case 1, Ue=16.5 m/s). (a) At slot 2; (b) at slot 4.
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Schematic diagram for longitudinal vortices with and without the spanwise pressure gradient. (a) Grid system for case 2 without spanwise pressure gradient (Pauley and Eaton.); (b) schematic diagram for case 4 with turning angle of 15 degree 9.
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Comparison of the predicted skin friction coeffcient with experimental data of Pauley and Eaton 11 at station 3 (case 2)
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Comparison of the predicted turbulent normal stresses at Z=8 cm with experimental data of Pauley and Eaton 11 (case 2, Ue=16 m/s)
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The predicted spanwise pressure gradients for cases 3, 4, and 5
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The calculated direction of velocity gradient vector for cases 3 and 5. (a) Case 3; (b) case 5.
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The contour of normalized streamwise vorticity, Ωx/Ue, for case 3 at stations 1, 2, and 4. (a) Inputs for cases 3, 4, and 5 at inlet region; (b) case 3 at station 2; (c) case 3 at station 4
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The contour of normalized streamwise vorticity Ωx/Ue for case 5 at stations 2 and 4. (a) Case 5 at station 2; (b) case 5 at station 4.
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Normalized contours of turbulent diffusion term. (a) Case 2 at station 2; (b) case 5 at station 2.
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The predicted skin friction coeffcient for three cases at station 2
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The calculated turbulent normal stresses for three cases at Z=6 cm and 10 cm. (a) At Z=6 cm; (b) at Z=10 cm.

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