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TECHNICAL PAPERS

Heat Transfer in a Two-Pass Rectangular Rotating Channel With 45-deg Angled Rib Turbulators

[+] Author and Article Information
Gm S. Azad, Mohammad J. Uddin, Je-Chin Han

Turbine Heat Transfer Laboratory, Department of Mechanical Engineering, Texas A&M University College Station, TX 77843

Hee-Koo Moon, Boris Glezer

Solar Turbines, San Diego, CA 92186

J. Turbomach 124(2), 251-259 (Apr 09, 2002) (9 pages) doi:10.1115/1.1450569 History: Received January 25, 2001; Online April 09, 2002
Copyright © 2002 by ASME
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References

Han,  J. C., and Park,  J. S., 1988, “Developing Heat Transfer in Rectangular Channel With Rib Turbulators,” Int. J. Heat Mass Transf., 31, No. 1, pp. 183–195.
Han,  J. C., Zhang,  Y. M., and Lee,  C. P., 1991, “Augmented Heat Transfer in Square Channels With Parallel, Crossed, and V-Shaped Angled Ribs,” ASME J. Heat Transfer, 113, pp. 590–596.
Ekkad,  S. V., and Han,  J. C., 1997, “Detailed Heat Transfer Distribution in Two-Pass Square Channels With Rib Turbulators,” Int. J. Heat Mass Transf. 40, No. 11, pp. 2525–2537.
Bonhoff,  B., Parneix,  S., Leusch,  J., Johnson,  B. V., Schabacker,  J., and Bolcs,  A., 1999, “Experimental and Numerical Study of Developed Flow and Heat Transfer in Coolant Channels With 45° Ribs,” Int. J. Heat Fluid Flow, 20, pp. 311–319.
Schabacker, J., Boelcs, A., and Johnson, B. V., 1999, “PIV Investigation of the Flow Characteristics in an Internal Coolant Passage With 45° Rib Arrangement,” ASME Paper 99-GT-120.
Tse, D. G. N., and Steuber, G. D., 1997, “Flow in a Rotating Square Serpentine Coolant Passage With Skewed Trips,” ASME Paper 97-GT-529.
Wagner,  J. H., Johnson,  B. V., and Hajek,  T. J., 1991a, “Heat Transfer in Rotating Passage With Smooth Walls and Radial Outward Flow,” ASME J. Turbomach., 113, pp. 42–51.
Wagner,  J. H., Johnson,  B. V., and Kooper,  F. C., 1991b, “Heat Transfer in Rotating Serpentine Passage With Smooth Walls,” ASME J. Turbomach., 113, pp. 321–330.
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Han,  J. C., Zhang,  Y. M., and Kalkuehler,  K., 1993, “Uneven Wall Temperature Effect on Local Heat Transfer in a Rotating Two-Pass Square Channel With Smooth Walls,” ASME J. Heat Transfer, 115, pp. 912–920.
Zhang,  Y. M., Han,  J. C., Parsons,  J. A., and Lee,  C. P., 1995, “Surface Heating Effect on Local Heat Transfer in a Rotating Two-Pass Square Channel With 60° Angled Rib Turbulators,” ASME J. Turbomach., 117, pp. 272–280.
Parsons,  J. A., Han,  J. C., and Zhang,  Y. M., 1994, “Wall Heating Effect on Local Heat Transfer in a Rotating Two-Pass Square Channel With 90° Rib Turbulators,” Int. J. Heat Mass Transf., 37, No. 9, pp. 1411–1420.
Johnson,  B. V., Wagner,  J. H., Steuber,  G. D., and Yeh,  F. C., 1994b, “Heat Transfer in Rotating Serpentine Passage With Selected Model Orientations for Smooth or Skewed Trip Walls,” ASME J. Turbomach., 116, pp. 738–744.
Parsons,  J. A., Han,  J. C., and Zhang,  Y. M., 1995, “Effects of Model Orientation and Wall Heating Condition on Local Heat Transfer in a Rotating Two-Pass Square Channel With 90° Rib Turbulators,” Int. J. Heat Mass Transf., 38, No. 7, pp. 1151–1159.
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Al-Qahtani, M., Jang, Y., Chen, H. C., and Han, J. C., 2001, “Prediction of Flow and Heat Transfer in Rotating Two-Pass Rectangular Channels with 45° Rib Turbulators,” ASME Paper No. 2001-GT-187.
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Figures

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Averaged Nusselt number ratio on leading and trailing surfaces
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Sketch of an internal coolant passage of a gas turbine blade
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Schematic of the two-pass test section
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Two-pass test section with (a) smooth walls, (b) 45-deg parallel ribs on leading and trailing surfaces, (c) 45-deg cross ribs on leading and trailing surfaces, (d) two different channel orientations
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A conceptual view of the secondary flow pattern
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Nusselt number ratio for smooth case
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Nusselt number ratio for 45-deg parallel rib case
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Nusselt number ratio for 45-deg cross rib case

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