International Journal of Fluid Mechanics Research

ISSN for PRINT: 1064-2277

For Online Access

Best Paper Award Selection - Editorial Board Site

2003, Volume30

Issue 5

110 pages

DOI: 10.1615/InterJFluidMechRes.v30.i5

Issue price - $250.00

Rama Subba Reddy Gorla
Department of Mechanical Engineering, Cleveland State University, 2121 Euclid Ave., SH232, Cleveland, Ohio 44115, USA

Santosh Viswanadham
Department of Mechanical Engineering, Cleveland State University Cleveland, Ohio 44115-2425, USA

Asad Salem
Department of Engineering Technology, Cleveland State University Cleveland, Ohio 44115-2425, USA

Larry W. Byrd
Thermal Structures Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson Air Force Base, Ohio 45433, USA

The objective of the present study is to determine the detailed transport physics of enhanced capillary pumped heat transport concepts utilizing binary fluid mixtures. The introduction of a small amount of a less volatile fluid with a higher surface tension into the working fluid will increase the capillary pumping potential in capillary heat transfer devices. An evaporating thin film was modeled by considering the concentration and thermal gradients. Lubrication theory was used to describe the velocity field by taking interfacial thermocapillary stresses into account. The mass flow rate of evaporation, heat flux and heat transfer coefficient were evaluated for various concentrations of the binary fluid. It is found that there is an optimal concentration of the binary fluid below which the heat transfer rate increases.

DOI: 10.1615/InterJFluidMechRes.v30.i5.20 Download article, 12 pages

Article price - $35.00

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