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TECHNICAL PAPERS

On Prediction of Thermal-Hydraulic Characteristics of Square-Sectioned Ribbed Cooling Ducts

[+] Author and Article Information
Arash Saidi, Bengt Sundén

Division of Heat Transfer, Lund Institute of Technology, 221 00 Lund, Sweden

J. Turbomach 123(3), 614-620 (Mar 01, 2001) (7 pages) doi:10.1115/1.1371779 History: Received March 01, 2001
Copyright © 2001 by ASME
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References

Han,  J. C., 1988, “Heat Transfer and Friction Characteristics in Rectangular Channels With Rib Turbulators,” ASME J. Heat Transfer, 110, pp. 321–328.
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Parsons,  J. A., Han,  J. C., and Zhang,  Y., 1995, “Effect of Model Orientation and Wall Heating Condition on Local Heat Transfer in a Rotating Two-Pass Square Channel With Rib Turbulators,” Int. J. Heat Mass Transf., 38, pp. 1151–1159.
Hwang,  J., and Liou,  T., 1997, “Heat Transfer Augmentation in a Rectangular Channel With Slit Rib-Turbulators on Two Opposite Walls,” ASME J. Turbomach., 119, pp. 617–623.
Rau,  M., Cakan,  M., Moeller,  D., and Arts,  T., 1998, “The Effects of Periodic Ribs on the Local Aerodynamics and Heat Transfer Performance of a Straight Cooling Channel,” ASME J. Turbomach., 120, pp. 368–375.
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Liou,  T., Hwang,  J., and Chen,  S., 1993, “Simulation and Measurement of Enhanced Turbulent Heat Transfer in a Channel With Periodic Ribs on One Principal Wall,” Int. J. Heat Mass Transf., 36, pp. 507–517.
Prakash,  C., and Zerkle,  R., 1995, “Prediction of Turbulent Flow and Heat Transfer in a Ribbed Rectangular Duct With and Without Rotation,” ASME J. Turbomach., 117, pp. 255–264.
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Saidi,  A., and Sundén,  B., 2000, “Numerical Simulation of Turbulent Convective Heat Transfer in Square Ribbed Ducts,” Numer. Heat Transfer, Part A, 36, pp. 67–88.
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Figures

Grahic Jump Location
One module of the two-sided ribbed square duct, aspect ratio is unity (dashed lines show the plane in Fig. 2)
Grahic Jump Location
Secondary flow vectors in a YZ cross-sectional plane, at X/e=5.5; (a) EASM and (b) EVM predictions (AKN predictions)
Grahic Jump Location
U component between two adjacent ribs at Y/e=0.1 in the symmetry plane (y/D=0.05)
Grahic Jump Location
Flow entrainment between the ribs at Y/e=1 in symmetry plane
Grahic Jump Location
The rms of vertical fluctuation velocity component between the ribs at Y/e=0.3 in symmetry plane
Grahic Jump Location
Streamwise fluctuation component in the duct center, Y/D=0.5,Z/D=0.5
Grahic Jump Location
Vertical fluctuation component in the duct center, Y/D=0.5,Z/D=0.5
Grahic Jump Location
Nusselt number enhancement predictions compared to experimental results of 6 along the symmetry line of the duct between adjacent ribs
Grahic Jump Location
Nusselt number enhancement pattern over the smooth side wall: (a) EVM with AKN model, (b) EASM with AKN model, (c) EVM with CHC model, and (d) EASM with CHC model predictions, (e) experimental results from Rau et al. 6

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