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TECHNICAL PAPERS: Forced Convection

Laminar Heat Transfer in the Entrance Region of Internally Finned Square Ducts

[+] Author and Article Information
V. D. Sakalis, P. M. Hatzikonstantinou

Department of Engineering Science, University of Patras, GR 26110 Patras, Greece

J. Heat Transfer 123(6), 1030-1034 (May 15, 2001) (5 pages) doi:10.1115/1.1404118 History: Received July 24, 2000; Revised May 15, 2001
Copyright © 2001 by ASME
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References

Nandakumar,  K., and Masliyah,  J. A., 1975, “Fully Developed Viscous Flow in Internally Finned Tubes,” Chem. Eng. J., 10, pp. 113–120.
Soliman,  H. M., and Feingold,  A., 1977, “Analysis of Fully Developed Laminar Flow in Longitudinal Internally Finned Tubes,” Chem. Eng. J., 14, pp. 119–128.
Soliman,  H. M., Chau,  T. S., and Trupp,  A. C., 1980, “Analysis of Laminar Heat Transfer in Internally Finned Tubes with Uniform Outside Wall Temperature,” ASME J. Heat Transfer, 102, pp. 598–604.
Masliyah,  J. H., and Nandakumar,  K., 1976, “Heat Transfer in Internally Finned Tubes,” ASME J. Heat Transfer, 98, pp. 257–261.
Hu,  H., and Chang,  Y. P., 1973, “Optimization of Finned Tubes for Heat Transfer in Laminar Flow,” ASME J. Heat Transfer, 95, pp. 332–338.
Rustum,  I. M., and Soliman,  H. M., 1988, “Numerical Analysis Of Laminar Forced Convection in the Entrance Region of Tubes with Longitudinal Internal Fins,” ASME J. Heat Transfer, 110, pp. 310–313.
Prakash,  C., and Liu,  Ye-Di., 1985, “Analysis of Laminar Flow and Heat Transfer in the Entrance Region of an Internally Finned Circular Duct,” ASME J. Heat Transfer, 107, pp. 84–91.
Prakash,  C., and Patankar,  S. V., 1981, “Combined Free and Forced Convection in Vertical Tubes With Radial Internal Fins,” ASME J. Heat Transfer, 103, pp. 566–572.
Dong,  Z. F., and Ebadian,  M. A., 1992, “Convective and Radiative Heat Transfer in the Entrance Region of an Elliptic Duct with Fins,” Numer. Heat Transfer, 21, pp. 91–107.
Dong,  Z. F., and Ebadian,  M. A., 1991, “A Numerical Analysis of Thermally Developing Flow in Elliptic Ducts with Internal Fins,” Int. J. Heat Mass Transf., 12, No. 2, pp. 166–172.
Rohsenow, W. M., Hartnett, J. P., and Cho, Y. I., 1998, Handbook of Heat Transfer, Mc Graw Hill, New York.
Aggarwala,  B. D., and Gangal,  M. K., 1976, “Heat Transfer in Rectangular Ducts with Fins from Opposite Walls,” ZAMM, 56, pp. 253–266.
Gangal,  M. K., and Aggarwala,  B. D., 1977, “Combined Free and Forced Laminar Convection in Internally Finned Square Ducts,” ZAMP, 28, pp. 85–96.

Figures

Grahic Jump Location
Duct of square cross section containing four equal thin symmetrical fins
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Variation of the axial velocity along AA axis for fin height H=0, 0.25, 0.625, and 0.75
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Variation of the friction factor product as a function of fin height H
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Mean Nusselt number variation in the entrance region, at each fin height
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Variation of mean Nusselt number in the developed region as a function of fin height H
Grahic Jump Location
Variation of the ratio Nu/f Re in the developed region, as a function of fin height H
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Temperature distribution along AA axis for axial distances s̄=0.005, 0.05, 0.1 and H=0.25
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The thermal entrance length Lth variation as a function of fin height H

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