0
TECHNICAL PAPERS: Forced Convection

Nusselt Number Behavior on Deep Dimpled Surfaces Within a Channel

[+] Author and Article Information
N. K. Burgess, M. M. Oliveira, P. M. Ligrani

Convective Heat Transfer Laboratory, Department of Mechanical Engineering, MEB 2202, 50 S. Central Campus Drive, University of Utah, Salt Lake City, UT 84112-9208

J. Heat Transfer 125(1), 11-18 (Jan 29, 2003) (8 pages) doi:10.1115/1.1527904 History: Received April 29, 2002; Revised September 13, 2002; Online January 29, 2003
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Mahmood,  G. I., Hill,  M. L., Nelson,  D. L., Ligrani,  P. M., Moon,  H.-K., and Glezer,  B., 2001, “Local Heat Transfer and Flow Structure On and Above a Dimpled Surface in a Channel,” ASME J. Turbomach., 123(1), pp. 115–123.
Afanasyev,  V. N., Chudnovsky,  Y. P., Leontiev,  A. I., and Roganov,  P. S., 1993, “Turbulent Flow Friction and Heat Transfer Characteristics for Spherical Cavities on a Flat Plate,” Exp. Therm. Fluid Sci., 7, pp. 1–8.
Belen’kiy,  M. Y., Gotovskiy,  M. A., Lekakh,  B. M., Fokin,  B. S., and Dolgushin,  K. S., 1994, “Heat Transfer Augmentation Using Surfaces Formed by a System of Spherical Cavities,” Heat Transfer Research, 25(2), pp. 196–203.
Kesarev,  V. S., and Kozlov,  A. P., 1994, “Convective Heat Transfer in Turbulized Flow Past a Hemispherical Cavity,” Heat Transfer Research, 25(2), pp. 156–160.
Terekhov,  V. I., Kalinina,  S. V., and Mshvidobadze,  Y. M., 1995, “Flow Structure and Heat Transfer on a Surface With a Unit Hole Depression,” Russ. J. Eng. Thermophys., 5, pp. 11–33.
Schukin, A. V., Koslov, A. P., and Agachev, R. S., 1995, “Study and Application of Hemispherical Cavities For Surface Heat Transfer Augmentation,” ASME Paper No. 95-GT-59.
Gortyshov, Y. F., Popov, I. A., Amirkhanov, R. D., and Gulitsky, K. E., 1998, “Studies of Hydrodynamics and Heat Exchange in Channels With Various Types of Intensifiers,” Proceedings of 11th International Heat Transfer Congress, 6 , pp. 83–88.
Chyu, M. K., Yu, Y., Ding, H., Downs, J. P., and Soechting F. O., 1997, “Concavity Enhanced Heat Transfer in an Internal Cooling Passage,” ASME Paper No. 97-GT-437.
Lin, Y.-L., Shih, T. I.-P., and Chyu, M. K., 1999, “Computations of Flow and Heat Transfer in a Channel With Rows of Hemispherical Cavities,” ASME Paper No. 99-GT-263.
Moon, H.-K., O’Connell, T., and Glezer, B., 1999, “Channel Height Effect on Heat Transfer and Friction in a Dimpled Passage,” ASME Paper No. 99-GT-163.
Mahmood,  G. I., and Ligrani,  P. M., 2002, “Heat Transfer in a Dimpled Channel: Combined Influences of Aspect Ratio, Temperature Ratio, Reynolds Number, and Flow Structure,” Int. J. Heat Mass Transf., 45(10), pp. 2011–2020.
Oliveira, M. M., 2002, “Heat Transfer and Skin Friction Coefficients in a Channel With Deep Dimples,” M. S. thesis, Department of Mechanical Engineering, University of Utah, Salt Lake City, UT.
Kline,  S. J., and McClintock,  F. A., 1953, “Describing Uncertainties in Single Sample Experiments,” Mech. Eng. (Am. Soc. Mech. Eng.), 75, pp. 3–8.
Moffat,  R. J., 1988, “Describing the Uncertainties in Experimental Results,” Exp. Therm. Fluid Sci., 1(1), pp. 3–17.
Mahmood, G. I., 2001, “Heat Transfer and Flow Structure From Dimples in an Internal Cooling Passage,” Ph.D. thesis, Department of Mechanical Engineering, University of Utah, Salt Lake City, UT.
Lienhard, J. H., 1987, A Heat Transfer Textbook, Second Edition, Prentice-Hall Inc., Englewood Cliffs, New Jersey, pp. 338–343.
Ligrani,  P. M., Harrison,  J. L., Mahmood,  G. I., and Hill,  M. L., 2001, “Flow Structure Due to Dimple Depressions on a Channel Surface,” Phys. Fluids, 13(11), pp. 3442–3451.
Amon,  C. H., Majumdar,  D., Herman,  C. V., Mayinger,  F., Mikic,  B. B., and Sekulic,  D. P., 1992, “Numerical and Experimental Studies of Self-Sustained Oscillatory Flows in Communicating Channels,” Int. J. Heat Mass Transf., 35(11), pp. 3115–3129.
Majumdar,  D., and Amon,  C. H., 1997, “Oscillatory Momentum Transport Mechanisms in Transitional Complex Geometry Flows,” ASME J. Fluids Eng., 119(1), pp. 29–35.
Nigen,  J. S., and Amon,  C. H., 1994, “Time-Dependent Conjugate Heat Transfer Characteristics of Self-Sustained Oscillatory Flows in a Grooved Channel,” ASME J. Fluids Eng., 116(3), pp. 499–507.
Ligrani, P. M., Oliveira, M. M., and Blaskovich, T., 2003, “Comparison of Heat Transfer Augmentation Techniques,” AIAA Journal, to appear.

Figures

Grahic Jump Location
Schematic diagram of the experimental apparatus used for heat transfer measurements
Grahic Jump Location
Schematic diagrams of the top and bottom dimpled test surfaces. All dimensions are given in cm.
Grahic Jump Location
Schematic diagrams of individual dimple geometry details for the present study and for Mahmood et al. 1. All dimensions are given in cm.
Grahic Jump Location
Baseline, constant property Nusselt numbers, measured with smooth channel surfaces and constant heat flux boundary condition, for a ratio of inlet stagnation temperature to surface temperature of 0.93–0.94, as dependent upon Reynolds number based on hydraulic diameter. Data are given for all four walls heated, and for one wall heated.
Grahic Jump Location
Local Nusselt number ratio data from a channel with dimples and heating on one channel surface, for δ/D=0.2,H/D=1, and ReH=20,000 from Mahmood 15
Grahic Jump Location
Local Nusselt number ratio data from a channel with dimples on one channel surface, and heating on one channel surface, for δ/D=0.3,H/D=1, and ReH=17,200
Grahic Jump Location
Local dimpled channel Nusselt number ratios as dependent upon X/D along the spanwise centerline at Z/D=0. Data are given for δ/D=0.3,H/D=1, and ReH=17,200 from the present study, and for δ/D=0.2,H/D=1, and ReH=20,000 from Mahmood 15.
Grahic Jump Location
Local dimpled channel Nusselt number ratios as dependent upon X/D along the spanwise centerline at Z/D=0 for δ/D=0.3,H/D=1, and different ReH from the present study
Grahic Jump Location
Local dimpled channel Nusselt number ratios as dependent upon Z/D along a line at X/D=23.2 for δ/D=0.3,H/D=1, and different ReH from the present study
Grahic Jump Location
Spanwise-averaged dimpled channel Nusselt number ratios as dependent upon X/D for δ/D=0.3,H/D=1, and ReH=17,200 from the present study, and for δ/D=0.2,H/D=1, and ReH=20,000 from Mahmood 15
Grahic Jump Location
Spanwise-averaged dimpled channel Nusselt number ratios as dependent upon X/D for δ/D=0.3,H/D=1, and different ReH from the present study
Grahic Jump Location
Streamwise-averaged dimpled channel Nusselt number ratios as dependent upon Z/D for δ/D=0.3,H/D=1, and different ReH from the present study
Grahic Jump Location
Globally-averaged dimpled channel Nusselt number ratios as dependent upon Reynolds number ReH for δ/D=0.3 and H/D=1. Results from the present study are compared to results from Mahmood 15, Chyu et al. 8, and Moon et al. 10 for different values of δ/D, the ratio of dimple depth to dimple print diameter.
Grahic Jump Location
Dimpled channel friction ratio as dependent upon Reynolds number ReH for δ/D=0.3 and H/D=1. Results from the present study are compared to results from Mahmood 15, Chyu et al. 8, and Moon et al. 10 for different values of δ/D, the ratio of dimple depth to dimple print diameter. Symbols are defined in Fig. 13.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In