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TECHNICAL PAPERS: Natural and Mixed Convection

An Experimental Study on Mixed Convection in a Horizontal Rectangular Channel Heated From a Side

[+] Author and Article Information
C. Gau, Y. C. Jeng, C. G. Liu

Institute of Aeronautics and Astronautics, National Cheng Kung University, Tainan 70101, Taiwan, R.O.C.

J. Heat Transfer 122(4), 701-707 (May 01, 2000) (7 pages) doi:10.1115/1.1318211 History: Received June 11, 1999; Revised May 01, 2000
Copyright © 2000 by ASME
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References

Aung W., 1987, “Mixed Convection in Internal Flow,” Handbook of Single Phase-Phase Convective Heat Transfer, S. Kakac, R. K. Shah, and W. Aung, eds., John Wiley and Sons, New York, Chapter 15.
Gau,  C., Yih,  K. A., and Aung,  W., 1992, “Reverse Flow Structure and Heat Transfer Measurements for Buoyancy-Assisted Convection in Heated Vertical Duct,” ASME J. Heat Transfer, 114, pp. 928–935.
Gau,  C., Yih,  K. A., and Aung,  W., 1992, “Measurements of Heat Transfer and Flow Structure in Heated Vertical Channels With Buoyancy Assisted and Opposed Flows,” AIAA J. Thermophys. Heat Transf., 6, No. 4, pp. 707–712.
Huang,  T. M., Gau,  C., and Aung,  W., 1995, “Mixed Convection Flow and Heat Transfer in a Vertical Convergent Channel,” Int. J. Heat Mass Transf., 38, No. 13, pp. 2445–2456.
Wirtz, R. A., and McKinley, P., 1985, “Buoyancy Effects on Downward Laminar Convection Between Parallel-Plates,” Fundamentals of Forced and Mixed Convection, ASME HTD-Vol. 42, ASME, New York, pp. 105–112.
Hwang,  G. J., and Liu,  C. L., 1976, “An Experimental Study of Convective Instability in the Thermal Entrance Region of a Horizontal Parallel-Plate Channel Heated From Below,” Can. J. Chem. Eng., 54, pp. 521–525.
Incropera,  F. P., Knox,  A. L., and Maughan,  J. R., 1987, “Mixed Convection Flow and Heat Transfer in the Entry Region of a Horizontal Rectangular Duct,” ASME J. Heat Transfer, 109, pp. 434–439.
Maughan,  J. R., and Incropera,  F. P., 1990, “Regions of Heat Transfer Enhancement for Laminar Mixed Convection in a Parallel Plate Channel,” Int. J. Heat Mass Transf., 33, pp. 555–570.
Mahaney,  H. V., Incropera,  F. P., and Ramadhyani,  S., 1987, “Development of Laminar Mixed Convection in the Thermal Entrance Region of Horizontal Rectangular Ducts,” Numer. Heat Transfer, 12, pp. 137–155.
Lee,  F. S., and Hwang,  G. J., 1991, “The Effect of Asymmetric Heating on the Onset of Thermal Instability in the Thermal Entrance Region of a Parallel-Plate Channel,” Int. J. Heat Mass Transf., 34, pp. 2207–2218.
Gau, C., Huang, T. M., Liu, C. W., and Aung, W., 1998, “Mixed Convection Flow and Heat Transfer in a Horizontal Divergent Channel With Bottom Wall Heated,” Proceedings of the 11th International Heat Transfer Conference, Korea, Vol. 3, pp. 257–262.
Gau,  C., Liu,  C. W., Huang,  T. M., and Aung,  W., 1999, “Secondary Flow and Enhancement of Heat Transfer in Horizontal Parallel-Plate and Convergent Channels Heating From Below,” Int. J. Heat Mass Transf., 42, pp. 2629–2647.
Webb,  B. W., and Hill,  D. P., 1989, “High Raleigh Number Laminar Natural Convection in an Asymmetrically Heated Vertical Channel,” ASME J. Heat Transfer, 111, pp. 649–656.
Kline,  S. J., and McClintock,  F. A., 1953, “Describing Uncertainties in Single-Sample Experiments,” Mech. Eng. (Am. Soc. Mech. Eng.), 75, pp. 3–12.
Naito,  E., 1975, “Laminar Heat Transfer in the Entrance Region Between Parallel-Plate—The Case of Uniform Heat Flux,” Heat Transf. — Japan. Res., 4, No. 2, pp. 63–74.
Jeng, Y. C., 1998, “Mixed Convection in a Horizontal Duct Heated From a Side,” MS thesis, National Cheng Kung University, Tainan, Taiwan, ROC.
Oosthuizen,  P. H., and Bassey,  M., 1973, “An Experimental Study of Combined Forced and Free Convective Heat Transfer on Flat Plates to Air at Low Reynolds Numbers,” ASME J. Heat Transfer, 95, pp. 120–121.
Churchill,  S. W., 1977, “A Comprehensive Correlating Equation for Laminar Assisting Forced and Free Convection,” AIChE J., 23, pp. 10–16.
Raithby, G. D., and Hollands, K. G. T., 1985, “Natural Convection,” Handbook of Heat Transfer: Fundamental, W. M. Rohsenow, J. P. Hartnett, and E. N. Ganic, eds., McGraw-Hill, New York, Chapter 6, pp. 16–20.

Figures

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Schematic diagram of the channel: 1) wind tunnel, 2) slot for smoke injection, 3) stainless steel foil, 4) 12 rows of thermocouples in the transverse direction
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Flow structure from the end view with Re=500 and Gr/Re2=7700 at (a) x=10 cm, (b) x=20 cm, and (c) x=30 cm
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Flow structure from the side view with Re=500 and (a) Gr/Re2=1000, (b) Gr/Re2=2000, (c) Gr/Re2=6000, and (d) Gr/Re2=7700
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Flow structure from the side view with Gr/Re2=2000 and (a) Re=500, (b) Re=700, and (c) Re=1000
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The Nusselt number contours on the heated side wall with Gr/Re2=6000 and Re=500
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The normalized Nusselt number distributions at different Reynolds numbers with (a) Gr/Re2 very close to 1000 and (b) Gr/Re2 very close to 2000
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The normalized Nusselt number distributions at different buoyancy parameters with (a) Re=500 and (b) Re=1000
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The normalized Nusselt number distributions at different buoyancy parameters by changing the Reynolds numbers with (a) Gr=2.4×108 and (b) Gr=1.92×109
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Comparison of the normalized Nusselt numbers between the case of a vertical channel heated from the side and the case of horizontal channel heated from a side
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Comparison of (a) the normalized Nusselt number contour measured with (b) the predicted with Eq. (2) (with n=3) at Re=500 and Gr/Re2=4000
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Comparison of the average Nusselt numbers measured with the predicted with Eq. (2) (with n=4) at different buoyancy parameters and Gr=9.61×108
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Correlation of the normalized Nusselt numbers in terms of the buoyancy parameter and the nondimensional axial distance
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Correlation of the average Nusselt numbers in terms of the buoyancy parameter

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