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TECHNICAL PAPERS: Gas Turbines: Heat Transfer, and Turbomachinery

Droplet Entrainment From a Shear-Driven Liquid Wall Film in Inclined Ducts: Experimental Study and Correlation Comparison

[+] Author and Article Information
J. Ebner, M. Gerendás, O. Schäfer, S. Wittig

Lehrstuhl und Institut für Thermische Strömungsmaschinen, Universität Karlsruhe (T.H.), Kaiserstrasse 12, 76128 Karlsruhe, Germany

J. Eng. Gas Turbines Power 124(4), 874-880 (Sep 24, 2002) (7 pages) doi:10.1115/1.1476926 History: Received December 01, 2000; Revised March 01, 2001; Online September 24, 2002
Copyright © 2002 by ASME
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References

Glahn, A., Busam, S., Blair, M. F., Allard, K. L., and Wittig, S., 2000, “Droplet Generation by Disintegration of Oil Films at the Rim of a Rotating Disk,” 45th ASME Paper 2000-GT-279.
Glahn, A., Busam, S., and Wittig, S., 1997, “Local and Mean Heat Transfer Coefficients along the Internal Housing Walls of Aero Engine Bearing Chambers,” ASME Paper 97-GT-261.
Busam,  S., Glahn,  A., and Wittig,  S., 1999, “Internal Bearing Chamber Wall Heat Transfer as a Function of Operating Conditions and Chamber Geometry,” ASME J. Eng. Gas Turbines Power, 122, pp. 314–320.
Hewitt, G. F., and Taylor, N. S., 1970, Annular Two-Phase Flow, Pergamon Press, Oxford, UK.
van Rossum,  J. J., 1959, “Experimental Investigation of Horizontal Film Flow,” Chem. Eng. Sci., 11, pp. 35–52.
Ishii,  M., and Grolmes,  M. A., 1975, “Inception Criteria for Droplet Entrainment in Two-Phase Concurrent Film Flow,” AIChE J., 21(2), pp. 308–318.
Woodmansee,  D. E., and Hanratty,  T. J., 1969, “Mechanism for the Removal of Droplets from a Liquid Surface by a Parallel Air Flow,” Chem. Eng. Sci., 24, pp. 299–307.
Spedding,  P. L., Watterson,  J. K., Raghuanthan,  S. R., and Ferguson,  M. E. G., 1998, “Two-Phase Co-Current Flow in Inclined Pipe,” Int. J. Heat Mass Transf., 41, pp. 4205–4228.
Lee, C. K., and Mjani, A. M., 1995, “Enhancement of Droplet Entrainment From Liquid Film Flowing Over Horizontal Ribbed Surfaces,” Proceedings 1st Int. Symp. on Two-Phase Modelling and Experimentation, G.-P. Celata and R. K. Shah, eds, Edizione ETS, Pisa, 1 , pp. 143–148.
Azzopardi,  B. J., 1997, “Drops in Annular Two-Phase Flow,” Int. J. Multiphase Flow, 23, pp. 1–53.
Azzopardi, B. J., Zaidi, S. H., and Jepson, D. M., 1997, “Entrained Fraction in Inclined Annular Gas/Liquid Flow,” Proceedings of the ASME Fluid Eng Division, ASME, New York, 244 , pp. 69–76.
Hewitt, G. F., 1978, Measurement of Two Phase Flow Parameters, Academic Press, London.
Samenfink, W., Elsäßer, A., Wittig, S., and Dullenkopf, K., 1996, “Internal Transport Mechanisms of Shear-Driven Liquid Films,” Proceedings of the Eighth International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, July 8–11.
Takamasa, T., Tamura, S., and Kobayashi, K., 1998, “Interfacial Waves on a Film Flowing Down Plate Wall in an Entry Region Measured With Laser Focus Displacement Meters,” 3rd International Conference on Multiphase Flow, Lyon, France, June 8–12.
Samenfink, W., 1997, “Fundamental Study of the Interaction of Droplets and Shear-Driven Liquid Films,” Ph.D. thesis, Institute of Thermal Turbomachinery, University Karlsruhe, Germany.
Fujii, T., Asano, H., Takenaka, N., and Yamada, H., 1998, “The Liquid Film Structure in a Two-Phase Gas-Liquid Annular Flow,” 3rd International Conference on Multiphase Flow, Lyon, France, June 8–12.
Busam, S., Ebner, J., and Wittig, S., 2001, “An Experimental Study of Liquid Film Thickness in Annular Air/Oil Flow in a Vertical Pipe Using a Laser Focus Displacement Meter,” 46th ASME Paper 2001-GT-116.
Kataoka,  I., Ishii,  M., and Mishima,  K., 1983, “Generation and Size Distribution of Droplet in Annular Two-Phase Flow,” Trans. ASME, 105, pp. 230–238.
Ishii,  M., and Mishima,  K., 1989, “Droplet Entrainment Correlation in Annular Two-Phase Flow,” Int. J. Heat Mass Transf., 32(10), pp. 1835–1845.
Cousins, L. B., Denton, W. H., and Hewitt, G. F., 1965, “Liquid Mass Transfer in Annular Two-Phase Flow,” Symposium on Two-Phase Flow, Exeter, U.K., 1 (Paper C4).

Figures

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Schematic of rectangular test section
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Optical setup and the modified data acquisition of the nonintrusive laser-based film thickness measurement technique
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Comparison of measured entrainment fraction with correlation according to Ishii and Mishima 19 (film length l=30H)
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Comparison of measured entrainment fraction with correlation in entrance region (Ishii and Mishima 19)
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Entrainment function in entrance region Ishii and Mishima 19
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Effect of Reynolds and Weber number on entrainment fraction (film length l=30H; inclination α=0 deg)
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Effect of film flow length on entrainment fraction
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Effect of inclination angle on entrainment fraction
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Comparison of measured entrainment fraction and correlation (film length l=20H; inclination α=0 deg)
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Comparison of measured entrainment fraction and correlation (film length l=30H; inclination α=20 deg)
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Comparison of measured film thickness and correlation for different inclination angles
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Comparison of measured film thickness and correlation for different film flow lengths

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