Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Influence of thermocapillary effects on wave characteristics of the heated liquid film

Influence of thermocapillary effects on wave characteristics of the heated liquid film Abstract Wave characteristics of the water film flow over a vertical plate with a heater were studied. Without a heat flux, data obtained perfectly coincide with results of other authors obtained for an isothermal liquid film. When heating the falling liquid, thermocapillary forces form the rivulets and thin film between them. It was found out that an increase in the heat flux causes a rise of the phase velocity and decreases the frequency of 3D waves. It is shown that in contrast to the known data for an isothermal liquid film, the average relative wave amplitude increases with a rise of dimensionless complex Reloc/Ka 1/11loc at relatively high heat flux densities in the interrivulet. The growth of wave amplitude under the action of thermocapillary forces was revealed in the interrivulet, what corresponds to calculations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Influence of thermocapillary effects on wave characteristics of the heated liquid film

Loading next page...
 
/lp/springer-journals/influence-of-thermocapillary-effects-on-wave-characteristics-of-the-EMd50CmVc0
Publisher
Springer Journals
Copyright
2007 E.A. Chinnov, A.D. Nazarov, A.V. Saprykina, and A.F. Serov
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/S086986430701009X
Publisher site
See Article on Publisher Site

Abstract

Abstract Wave characteristics of the water film flow over a vertical plate with a heater were studied. Without a heat flux, data obtained perfectly coincide with results of other authors obtained for an isothermal liquid film. When heating the falling liquid, thermocapillary forces form the rivulets and thin film between them. It was found out that an increase in the heat flux causes a rise of the phase velocity and decreases the frequency of 3D waves. It is shown that in contrast to the known data for an isothermal liquid film, the average relative wave amplitude increases with a rise of dimensionless complex Reloc/Ka 1/11loc at relatively high heat flux densities in the interrivulet. The growth of wave amplitude under the action of thermocapillary forces was revealed in the interrivulet, what corresponds to calculations.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Mar 1, 2007

References