Recent advances on thermocapillary flows and interfacial conditions during the evaporation of liquids

Sefiane, Khellil; Ward, C. A.

doi:10.1016/j.cis.2007.04.020

Cited by 76 publications

(34 citation statements)

References 55 publications

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“…Therefore, for a liquid of non-uniform surface temperature, variation of surface tension drives a flow in liquid. This phenomenon is known as Marangoni or thermo-capillary convection [24].…”

Section: Discussion On Convective Flows In the Liquid Fuelmentioning

confidence: 99%

Effects of convective motion in n -octane pool fires in an ice cavity

Farahani

Jomaas

Rangwala

2015

Combustion and Flame

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Section: Discussion On Convective Flows In the Liquid Fuelmentioning

confidence: 99%

Effects of convective motion in n -octane pool fires in an ice cavity

Farahani

Jomaas

Rangwala

2015

Combustion and Flame

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“…The comprehensive review on thermocapillary flows in evaporating droplets is given in [55]. High-speed microparticle image velocimetry [56] was used to study velocity profiles in the droplet and infrared thermography was used to study temperature profiles at its surface [57]. It was found that the flow rate inside the pinned drop increases dramatically (on one order of magnitude) toward the end of evaporation [56].…”

Section: Stages Of Evaporation: Universal Behaviourmentioning

confidence: 99%

“…High-speed microparticle image velocimetry [56] was used to study velocity profiles in the droplet and infrared thermography was used to study temperature profiles at its surface [57]. It was found that the flow rate inside the pinned drop increases dramatically (on one order of magnitude) toward the end of evaporation [56]. The local measurements of the interface temperature allowed deducing the local evaporation rates and their evolution in time, for which a theoretical description of droplet evaporation was proposed in [58].…”

Section: Stages Of Evaporation: Universal Behaviourmentioning

confidence: 99%

Smart and green interfaces: From single bubbles/drops to industrial environmental and biomedical applications

Dutschk

Karapantsios

Liggieri

et al. 2014

Advances in Colloid and Interface Science

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Interfaces can be called Smart and Green (S&G) when tailored such that the required technologies can be implemented with high efficiency, adaptability and selectivity. At the same time they have also to be eco-friendly, i.e. products must be biodegradable, reusable or simply more durable. Bubble and drop interfaces are in many of these smart technologies the fundamental entities and help develop smart products of the everyday life.Significant improvements of these processes and products can be achieved by implementing and manipulating specific properties of these interfaces in a simple and smart way, in order to accomplish specific tasks. The severe environmental issues require in addition attributing ecofriendly features to these interfaces, by incorporating innovative , or, sometime, recycle materials and conceiving new production processes which minimize the use of natural resources and energy. Such concept can be extended to include important societal challenges related to support a sustainable development and a healthy population.The achievement of such ambitious targets requires the technology research to be supported by a robust development of theoretical and experimental tools, needed to understand in more details the behavior of complex interfaces. A wide but not exhaustive review of recent work concerned with green and smart interfaces is presented, addressing different scientific and technological fields. The presented approaches reveal a huge potential in relation to various technological fields, such as nanotechnologies, biotechnologies, medical diagnostics, new or improved materials.

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“…[12] and references therein). Unlike organic liquids, water does not exhibit small-scale cellular thermal structure flowing along the surface.…”

Section: Introductionmentioning

confidence: 99%

Combined study of evaporation from liquid surface by background oriented schlieren, infrared thermal imaging and numerical simulation

Vinnichenko

Uvarov

Plaksina

2013

EPJ Web of Conferences

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Abstract. Temperature fields in evaporating liquids are measured by simultaneous use of Background Oriented Schlieren (BOS) technique for the side view and IR thermal imaging for the surface distribution. Good agreement between the two methods is obtained with typical measurement error less than 0.1 K. Two configurations of surface layer are observed: thermocapillary convection state with moving liquid surface and small thermal cells, associated with Marangoni convection, and "cool skin" with negligible velocity at the surface, larger cells and dramatic increase of velocity within 0.1 mm layer beneath the surface. These configurations are shown to be formed in various liquids (water with various degrees of purification, ethanol, butanol, decane, kerosene, glycerine) depending rather on initial conditions and ambient parameters than on the liquid. Water, which has been considered as the liquid without observable Marangoni convection, actually can exhibit both kinds of behavior during the same experimental run. Evaporation is also studied by means of numerical simulations. Separate problems in air and liquid are considered, with thermal imaging data of surface temperature making the separation possible. It is shown that evaporation rate can be predicted by numerical simulation of the air side with appropriate boundary conditions. Comparison is made with known empirical correlations for Sherwood-Rayleigh relationship. Numerical simulations of water-side problem reveal the issue of velocity boundary conditions at the free surface, determining the structure of surface layer. Flow field similar to observed in the experiments is obtained with special boundary conditions of third kind, presenting a combination of no-slip and surface tension boundary conditions.

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Recent advances on thermocapillary flows and interfacial conditions during the evaporation of liquids

Cited by 76 publications

References 55 publications

Effects of convective motion in n -octane pool fires in an ice cavity

Effects of convective motion in n -octane pool fires in an ice cavity

Smart and green interfaces: From single bubbles/drops to industrial environmental and biomedical applications

Combined study of evaporation from liquid surface by background oriented schlieren, infrared thermal imaging and numerical simulation

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