RT Journal Article ID 2e142d070a4e8196 A1 Gorla, R.S.R. A1 Viswanadham, Santosh A1 Salem, Asad A1 Byrd, Larry W. T1 Heat Transfer in Thin Liquid Films Utilizing Binary Fluid Mixtures JF International Journal of Fluid Mechanics Research JO FMR YR 2003 FD 2003-10-01 VO 30 IS 5 OP 12 AB 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. PB Begell House LK https://www.dl.begellhouse.com/journals/71cb29ca5b40f8f8,3002b98831d48002,2e142d070a4e8196.html