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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Print: 2152-5102
ISSN Online: 2152-5110

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v31.i3.10
12 pages

Heat Transfer in an Evaporating Extended Meniscus in Capillary Tubes Utilizing Binary Fluid Mixtures

Rama Subba Reddy Gorla
Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, 44115 USA; Department of Mechanical Engineering, University of Akron, Akron, Ohio 44325, USA; Department of Mechanical & Civil Engineering, Purdue University Northwest, Westville, IN 46391, USA
Larry W. Byrd
Thermal Structures Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson Air Force Base, OH 45433, USA

ABSTRACT

The deformation of a thin liquid film in the presence of a binary fluid with higher surface tension under varying temperature distributions is considered. Lubrication theory and the interfacial thermocapillary stress condition were used to yield a differential equation for the film thickness. The evaporative mass flow rate, heat flux and heat transfer coefficient were evaluated for various concentrations of the binary fluid mixture. The heat transfer rate increases as the concentration of the driver fluid in the binary mixture reaches a value of 9 %. After reaching this value of concentration, the heat transfer rate was observed to decrease.


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