Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Heat Transfer Research
IF: 1.199 5-Year IF: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Print: 1064-2285
ISSN Online: 2162-6561

Volume 51, 2020 Volume 50, 2019 Volume 49, 2018 Volume 48, 2017 Volume 47, 2016 Volume 46, 2015 Volume 45, 2014 Volume 44, 2013 Volume 43, 2012 Volume 42, 2011 Volume 41, 2010 Volume 40, 2009 Volume 39, 2008 Volume 38, 2007 Volume 37, 2006 Volume 36, 2005 Volume 35, 2004 Volume 34, 2003 Volume 33, 2002 Volume 32, 2001 Volume 31, 2000 Volume 30, 1999 Volume 29, 1998 Volume 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v29.i6-8.260
pages 544-562

Infrared Study of the Liquid Film Flowing on Surface with Nonuniform Heat Flux Distribution

Oleg A. Kabov
Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences, 1, Acad. Lavrentyev Ave., Novosibirsk, 630090, Russia; Institute of Power Engineering, National Tomsk Polytechnic Research University, 7, Usova Street, Tomsk, 634050, Russia; Novosibirsk State University, 2, Pirogova str., Novosibirsk, 630090, Russia
I. V. Marchuk
Institute of Thermophysics, SB RAN Novosibirsk, Russia


An experimental study of the temperature field on a film surface of liquid; ranging from highly subcooled up to saturation temperature conditions, flowing freely on a vertical plate with a local heat source in its center, has been made. Direct measurements have shown that an estimation of the temperature gradient on a film surface based on the temperature gradient across the film can cause an incorrect result, since |gard T| across a film is 10−50 times larger than |gard T| on the film surface. The average temperature gradient calculated as a relation of maximal temperature difference on the film surface to a heater length gives a satisfactory estimation of local temperature gradients on an interface for small Reynolds numbers (Re ≤ 6). Film breakdown occurs in several steps: appearance of a large-scale instability with a formation of horseshoe-shaped structures; reorganization of structures; thermocapillary thinning and film breakdown. Two mechanisms of appearance of dry spots have been discovered. They are connected with existence of significant temperature gradients on the film surface near stable structures and with decreasing liquid rate on the heater because of deformation of a horizontal standing wave.

Articles with similar content:

Effect of Thermocapillary Non-Linear Deformations on Heat Transfer and Breakdown of Falling Liquid Films
International Heat Transfer Conference 12, Vol.16, 2002, issue
Dmitry V. Zaitsev, Igor Marchuk, Oleg A. Kabov, Evgeny Anavitolievich Chinnov
Boiling Behaviors on a Vertical Surface in Saturated Pool Boiling at High Pressures
International Heat Transfer Conference 15, Vol.38, 2014, issue
Hiroto Sakashita
International Heat Transfer Conference 6, Vol.1, 1978, issue
Jules Thibault, Terrence W. Hoffman
Study of temperature and vapor bubble's behavior in rapid transient explosive boiling
International Heat Transfer Conference 12, Vol.38, 2002, issue
Deng-Ying Liu, Shunfang Hua, Renxi Jin, Xiulan L. Huai, Zhengfang Zhang
Simultaneous visualization of dry spots and bubbles for pool boiling of R-113 on a short horizontal heater
International Heat Transfer Conference 12, Vol.40, 2002, issue
S. Y. Chun, H. C. No, Heung June Chung