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TECHNICAL PAPERS

Predicting Transition Without Empiricism or DNS

[+] Author and Article Information
Mark W. Johnson

Department of Engineering, University of Liverpool, Liverpool L69 3GH, UK

J. Turbomach 124(4), 665-669 (Nov 07, 2002) (5 pages) doi:10.1115/1.1506940 History: Received April 10, 2001; Online November 07, 2002
Copyright © 2002 by ASME
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References

Abu-Ghannam,  B. J., and Shaw,  R., 1980, “Natural Transition of Boundary Layers—The effects of Turbulence, Pressure Gradient and Flow History,” J. Mech. Eng. Sci., 22, pp. 213–228.
Fasihfar, A., and Johnson, M. W., 1992, “An Improved Boundary Layer Transition Correlation,” ASME Paper No. 92-GT-245
Johnson,  M. W., and Ercan,  A. H., 1999, “A Physical model for Bypass Transition,” Intl. Jnl. of Heat and Fluid Flow, 20, pp. 95–104.
Mayle,  R. E., and Schultz,  A., 1997, “The path to predicting bypass transition,” ASME J. Turbomach., 119, pp. 405–411.
Mayle,  R. E., Dullenkopf,  K., and Schultz,  A., 1998, “The Turbulence That Matters,” ASME J. Turbomach., 120, pp. 402–409.
Roach,  P. E., 1987, “The Generation of nearly Isotropic Turbulence by means of Grids,” Int. J. Heat Fluid Flow, 8, pp. 82–92.
Kittichiakarn, C., Ireland, P. T., Zhong, S., and Hodson, H. P., 1999, “An investigation on the onset of wake-induced transition and turbulent spot production rate using thermochromatic liquid crystals,” ASME Paper 99-GT-126.
Westin,  K. J. A., , 1994, “Experiments in a boundary layer subjected to freestream turbulence. Part 1. Boundary layer structure and receptivity,” J. Fluid Mech., 281, pp. 193–218.
Voke, P. R., 1995, “Laminar/turbulent transition of boundary layers influenced by freestream disturbances,” Euromech 330, Prague.
Savill, A. M., 1991, A synthesis of T3 test case predictions. Proc., 1st ERCOFTAC workshop, Cambridge University Press.
Mayle,  R. E., 1991, “The Role of Laminar-Turbulent Transition in Gas Turbine Engines,” ASME J. Turbomach., 113, pp. 509–537.

Figures

Grahic Jump Location
Definition of the vortex coordinate system
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Vortex orientation averaged near wall gain as a function of freestream vortex wave number
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Effect of vortex axis direction on the near wall gain for a vortex wave number of 1.15 and a Reδ=1000
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Y-Z cross section of approximately streamwise vortices θ=0 deg,ϕ=1deg. Left-hand diagrams show velocity perturbation and right hand diagrams show pressure perturbation. Contours: grey—negative, black—positive.
Grahic Jump Location
Near wall gain for isotropic turbulence. (Turbulence generating grid to plate leading edge Reynolds number of 500,000.)
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Experimental near wall gain results from 3
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Ratio of near wall to freestream turbulence levels

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