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TECHNICAL PAPERS

An Air Curtain Along a Wall With High Inlet Turbulence

[+] Author and Article Information
Brandon S. Field, Eric Loth

Department of Aeronautical and Astronautical Engineering, University of Illinois Urbana-Champaign, 104 S. Wright Street, Urbana, IL 61801

J. Fluids Eng 126(3), 391-398 (Jul 12, 2004) (8 pages) doi:10.1115/1.1758265 History: Received December 12, 2002; Revised January 05, 2004; Online July 12, 2004
Copyright © 2004 by ASME
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References

Adams, P. 1985, “The intereffect of supermarket refrigeration and air conditioning,” ASHRAE CH-85-09 No. 1, pp. 423-433.
Field, B., 2001, Entrainment in Refrigerated Air Curtains, University of Illinois, Masters Thesis.
George, B., and Buttsworth, D., 2000, “Investigation of an open refrigeration cabinet using computational simulations with supporting experiments,” Proceedings of the ASME International Mechanical Engineering Congress and Exposition, Nov 2000.
Cortella,  G., Manzan,  M., and Comini,  G., 2001, “CFD simulation of refrigerated display cabinets,” Int. Journal of Refrigeration, 24, pp. 250–260.
Navaz,  H. K., Faramarzi,  R., Gharib,  M., Dabiri,  D., and Modarress,  D., 2002, “The application of advanced methods in analyzing the performance of the air curtain in a refrigerated display case,” ASME J. Fluids Eng., 124, pp. 756–764.
Bajura,  R., and Catalano,  M., 1975, “Transition in a two-dimensional plane wall jet,” J. Fluid Mech., 70, pp. 773–799.
Shih,  C., and Gogineni,  S., 1994, “Experimental study of perturbed laminar wall jet,” AIAA J., 33, pp. 559–561.
Hsiao,  F-B., and Sheu,  S., 1996, “Experimental studies on flow transition of a plane wall jet,” Aeronaut. J., 100, pp. 373–380.
Keane,  R., and Adrian,  R., 1992, “Theory of cross-correlation analysis of PIV images,” Applied Science Research, 49, pp. 191–215.
Bhattacharjee, P., and Loth, E., 2001, “Simulation of thermal air curtain entrainment,” Proceedings of the ASME Fluid Engineering Division Summer Meeting, New Orleans, May 2001.
Gogineni,  S., Visbal,  M., and Shih,  C., 1999, “Phase-resolved PIV measurements in a transitional plane wall jet: a numerical comparison,” Exp. Fluids, 27, pp. 126–136.

Figures

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Idealizations made to the display case
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Photograph of laboratory showing display case, lasers, camera and computer for PIV collection
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Sketch of curtain edge showing basic eddy features
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Particle visualizations from Re=3800 curtains
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Fig. 5(af ): Sequential particle visualizations of the Re=3800 curtain with an inter-frame time interval of 0.133 sec. Moving flow features are labeled
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Particle visualizations from inlet of Re=1,500 curtain with a) delayed and b) rapid detachment
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Streamwise velocity contours for Re=8,500 curtain where highest velocities are red and lowest are black
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Initial streamwise velocity and RMS velocity profiles for x/H=1 for Re=4600 curtain
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Evolution of streamwise velocity profiles for a) Re=4600 and b) Re=1500 curtains
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Streamwise velocity profiles for curtains at x/H=5
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Evolution of turbulence intensity levels for Re=3800 curtain
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Curtain thickness development for curtains

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