Abstract
This report deals with a theoretical and experimental study concerning the measurement of local values of mean film thickness throughout the film length and with theoretical relations derived for determining the film thickness in the laminar-wave as well as in the turbulent region. The experimental studies have also covered local characteristics of wave motion on the film surface as well as the velocity field in the continuous layer, the local heat-transfer coefficients along the height of a vertical channel, and a critical relation for determining them has been derived.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 20, No. 4, pp. 674–682, April, 1971.
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Ganchev, B.G., Kozlov, V.M. & Lozovetskii, V.V. A study of the downward flow of a liquid film along a vertical surface with attendant heat transfer. Journal of Engineering Physics 20, 486–491 (1971). https://doi.org/10.1007/BF00826819
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DOI: https://doi.org/10.1007/BF00826819