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Influence of the plate inclination angle on rivulet formation and breakdown of non-isothermal liquid film

Influence of the plate inclination angle on rivulet formation and breakdown of non-isothermal... The influence of the plate inclination angle relative to the horizon on a distance between formed rivulets and breakdown of a falling water film was studied experimentally on a heater of 150×150 mm. Dependences of the distance between rivulets on the heat flux density and plate inclination angle were examined. In experiments two zones of influence of the heat flux on a distance between rivulets were revealed: at θ ≥ 20° distances between the rivulets do not depend on the heat flux, and at θ ≤ 15° they decrease with a rise of the heat flux. Data on film breakdown were generalized with consideration of evaporation effect. It is shown that there is almost no effect of inclination angle on film breakdown in the whole range of studied Reynolds numbers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Influence of the plate inclination angle on rivulet formation and breakdown of non-isothermal liquid film

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References (14)

Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2008
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864308010101
Publisher site
See Article on Publisher Site

Abstract

The influence of the plate inclination angle relative to the horizon on a distance between formed rivulets and breakdown of a falling water film was studied experimentally on a heater of 150×150 mm. Dependences of the distance between rivulets on the heat flux density and plate inclination angle were examined. In experiments two zones of influence of the heat flux on a distance between rivulets were revealed: at θ ≥ 20° distances between the rivulets do not depend on the heat flux, and at θ ≤ 15° they decrease with a rise of the heat flux. Data on film breakdown were generalized with consideration of evaporation effect. It is shown that there is almost no effect of inclination angle on film breakdown in the whole range of studied Reynolds numbers.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Mar 1, 2008

Keywords: Heat Flux; Inclination Angle; Liquid Film; Heat Flux Density; Critical Heat Flux

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