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TECHNICAL PAPERS

Heat Transfer Enhancements in Rotating Two-Pass Coolant Channels With Profiled Ribs: Part 1–Average Results

[+] Author and Article Information
S. Acharya, V. Eliades, D. E. Nikitopoulos

Mechanical Engineering Department, Louisiana State University, Baton Rouge, LA 70803

J. Turbomach 123(1), 97-106 (Feb 01, 2000) (10 pages) doi:10.1115/1.1331539 History: Received February 01, 2000
Copyright © 2001 by ASME
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References

Han,  J. C., Chandra,  P. R., and Lau,  S. C., 1988, “Local Heat/Mass Transfer Distributions Around Sharp 180° Turns in Two-Pass Smooth and Rib-Roughened Channels,” ASME J. Heat Transfer, 110, pp. 91–98.
Chyu,  M. K., and Wu,  L. X., 1989, “Combined Effects of Rib Angle-of-Attack and Pitch-to-Height Ratio on Mass Transfer From a Surface With Transverse Ribs,” Exp. Heat Transfer, 2, pp. 291–308.
Kukreja,  R. T., Lau,  S. C., and McMillin,  X., 1992, “Local Heat/Mass Transfer Distribution in a Square Channel With Full and V -Shaped Ribs,” Int. J. Heat Mass Transf., 36, pp. 2013–2020.
Chen, Y., Nikitopoulos, D., Hibbs, R., Acharya, S., and Myrum, T., 1999, “Detailed Heat/Mass Transfer Distribution in a Ribbed Coolant Passage,” Int. J. Heat Mass Transfer, in press.
Johnson,  B. V., Wagner,  J. H., Steuber,  G. D., and Yeh,  F. C., 1994, “Heat Transfer in Rotating Serpentine Passages With Trips Skewed to the Flow,” ASME J. Turbomach., 116, pp. 113–123.
Fann,  S., Yang,  W. J., and Zhang,  N., 1994, “Local Heat Transfer in a Rotating Serpentine Passage With Rib-Roughened Surfaces,” Int. J. Heat Mass Transf., 37, pp. 217–228.
Wagner,  J. H., Johnson,  B. V., Graziani,  R. A., and Yeh,  F. C., 1992, “Heat Transfer in Rotating Serpentine Passages With Trips Normal to the Flow,” ASME J. Turbomach., 114, pp. 847–857.
Taslim,  M. E., Rahman,  A., and Spring,  S. D., 1991, “An Experimental Investigation of Heat Transfer Coefficients in a Spanwise Rotating Channel With Two Opposite Rib-Roughened Walls,” ASME J. Turbomach., 113, pp. 75–82.
Hibbs, R., Acharya, S., Chen, Y., and Nikitopoulos, D., 1996, “Heat/Mass Transfer in a Two-Pass Rotating Smooth and Ribbed Channel,” in: Fundamentals of Heat Transfer With Impinging Jets, ASME HTD-Vol. 324, p. 123.
Eliades, V., Nikitopoulos, D. E., and Acharya, S., 1999, “Detailed Mass Transfer Distribution in Rotating Two-Pass Ribbed Coolant Channels With Vortex Generators,” ASME Paper No. 99-GT-424.
Park,  C. W., Lau,  S. C., and Kukreja,  R. T., 1998, “Heat/Mass Transfer in a Rotating Two-Pass Channel With Transverse Ribs,” J. Thermophys. Heat Transfer, 12, No. 1, pp. 80–86.
Park,  C. W., Lau,  S. C., and Kukreja,  R. T., 1998, “Heat/Mass Transfer in a Rotating Channel With Ribs of Various Sizes on Two Walls,” J. Thermophys. Heat Transfer, 12, No. 3, pp. 452–454.
Kukreja,  R. T., Park,  C. W., and Lau,  S. C., 1998, “Heat (Mass) Transfer in a Rotating Two Pass Square Channel–Part II: Local Transfer Coefficient, Smooth Channel,” Int. J. Rot. Mach. ,4, No. 1, pp. 1–15.
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Nikitopoulos,  D. E., Eliades,  V., and Acharya,  S., 2001, “Heat Transfer Enhancements in Rotating Two-Pass Coolant Channels With Profiled Ribs: Part 2 – Detailed Measurements,” ASME J. Turbomach., 123, this issue, pp. 107–114.
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Figures

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Schematic of the rotating experimental facility
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Schematic of the test section
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Schematic of various rib profiles examined. Profiles include trapezoidal shapes (profile configurations 1, 2, 3, 4), pyramid-valley shapes (profile configurations 5, 6, 7, 8) and saw-tooth shape (profile configurations 9, 10, 11, 12).
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Comparison of present measurements with published data: (a) stationary, comparisons with Han et al. 1; (b) rotating, smooth inlet channel, Re=5000, Ro=0.2. Triangular symbols are data from Han et al. 20.
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Fully developed cell averages of the leading and trailing surfaces of the inlet duct at Re=30,000 and Ro=0.3. Darkest shade represents profiled ribs, intermediate shade represents rectangular ribs with P/e=7.0, and lightest shade represents rectangular ribs with P/e=10.5.
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Fully developed cell averages of the inner and outer wall of the inlet duct at Re=30,000 and Ro=0.3. For legends, see Fig. 5.
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Fully developed cell averages of the leading and trailing wall of the outlet duct at Re=30,000 and Ro=0.3. For legends, see Fig. 5.
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Fully developed cell averages of the inner and outer wall of the outlet duct at Re=30,000 and Ro=0.3. For legends, see Fig. 5.
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Spanwise-averages in the high-resolution cells for rectangular ribs and profiled ribs: Configuration 7 (top wall–valley, bottom wall–pyramid) Re=30,000, Ro=0.3, and P/e=7.0
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Spanwise-averages in the high-resolution cells for rectangular ribs and profiled ribs: Configuration 9 (saw-tooth shaped with 2-pyramids-1-valley), Re=30,000, Ro=0.3, and P/e=7.0
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Spanwise-averages in the high-resolution cells for rectangular ribs and profiled ribs: Configuration 10 (saw-tooth shaped with 1-pyramid-2-valley), Re=30,000, Ro=0.3, and P/e=7.0

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