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Visualization of coating flows

Published online by Cambridge University Press:  21 April 2006

Peter M. Schweizer
Peter M. Schweizer
Affiliation:
IIford AG, Industriestrasse 15, CH-1701 Fribourg, Switzerland
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Abstract

An experimental technique for visualizing small-scale film flows is presented. The method utilizes hydrogen bubbles, dye injection, and optical sectioning. Specific aspects of applying this technique to coating processes, distinguished by two free surfaces, liquid-liquid interfaces, static and dynamic wetting lines, and small characteristic dimensions, are discussed in detail. This experimental approach is essential in providing the necessary boundary conditions for modern computer-aided theoretical computations of wetting-related flow fields. The power of the visualization method is demonstrated by examples showing the flow pattern of two liquid films merging on an inclined plane and the flow field of a liquid film being transferred from an inclined plane onto a moving surface.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 193 , August 1988 , pp. 285 - 302
Copyright
© 1988 Cambridge University Press

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References

Blake, T. D. 1984 Wetting. In Surfactants (ed. Th. F. Tadros), Chap. 10. Academic.
Blake, T. D. & Ruschak, K. J. 1979 Nature 282, 489–491.
Burley, R. & Kennedy, B. S. 1976 Br. Polym. J. 8, 140–143.
Clutter, D. W. & Smith, A. M. O. 1961 Aerospace Engng 1, 24–76.
Christodoulou, K. N. & Scriven, L. E. 1984 AIChE Annual Meeting, San Francisco, CA, Paper 1423.
Gibbs, J. W. 1906 The scientific papers of J. W. Gibbs, Vol. 1, Thermodynamics, pp. 314–331. Longmans, Green.
Gutoff, E. B. & Kendrick, C. E. 1982 AIChE J. 28, 459–466.
Hamner, N. E. 1974 Corrosion data survey. National Assoc. of Corrosion Engineers, Houston, TX.
Kistler, S. F. 1983 The fluid mechanics of curtain coating and related viscous free surface flows with contact lines. Thesis, University of Minnesota, Minneapolis.
Kistler, S. F., Hanauska, C. P. & Scriven, L. E. 1984 AIChE Winter-Meeting, Atlanta, Gerogia, Paper 17a.
Kistler, S. F. & Scriven, L. E. 1983 Coating flows. In Computational Analysis of Polymers (ed. J. Pearson & S. Richardson), Chap. 8. Barking.
Kobayashi, C., Saito, H. & Scriven, L. E. 1982 AIChE Winter Meeting, Orlando, Florida, Paper 45e.
Koseff, J. R. & Street, R. L. 1984 Trans. ASME: J. Fluids Engng 106, 385–389.
Kraegel, J., Fruhner, H. & Kretzschmar, G. 1987 J. Inf. Rec. Mater. 15, 251–257.
Moffatt, H. K. 1964 J. Fluid Mech. 18, 1–18.
Oliver, J. F., Huh, C. & Mason, S. G. 1977 J. Colloid Interface Sci. 59, 568–581.
O'Brien, V. 1981 Phys. Fluids 24, 1005–1009.
Ruschak, K. J. 1978 AIChE J. 24, 705–709.
Ruschak, K. J. 1985 Ann. Rev. Fluid Mech. 17, 65–89.
Sakiadis, B. C. 1961 AIChE J. 7, 221–225.
Schraub, F. A., Kline, S. J., Henry, J., Runstadler, Jr. P. W. & Littell, A. 1965 Trans. ASME: J. Basic Engng 87, 429–444.
Schweizer, P. M. & Scriven, L. E. 1983 Phys. Fluids 26, 619–623.
Tallmadge, J. A., Weinberger, C. B. & Faust, H. L. 1979 AIChE J. 25, 1065–1072.
Taneda, S. 1979 J. Phys. Soc. Japan 46, 1935–1942.
Van Dyke, M. 1982 An Album of Fluid Motion. Parabolic.
Young, T. 1805 Phil. Trans. R. Soc. Lond. 95, 65.