This article is cited in 4 papers

Thermal entry length in falling liquid film

E. A. Chinnov<sup>ab

a</sup> S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences
^b Novosibirsk State University

Abstract: The variation in thermal entry length (TEL) in a heated liquid film flowing down a vertical plate has been experimentally studied for high Reynolds numbers of the flow. Even at low heat fluxes, zones with a temperature exceeding the initial temperature of the film are formed at a distance of $\sim$7 mm from the upper edge of the heater in the region between rivulets, which is formed between the crests of developed three-dimensional synchronous waves. In rivulets passing along the crests of these waves, the TEL is greater, but it rapidly decreases with increasing heat flux density.

Received: 05.04.2011

 English version: Technical Physics Letters, 2011, 37:8, 776–779

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