Spreading and evaporation of sessile droplets: Universal behaviour in the case of complete wetting

Lee, K. S.; Cheah, Calvin; Copleston, R. J.; Starov, Victor; Sefiane, Khellil

doi:10.1016/j.colsurfa.2007.09.033

Cited by 39 publications

(21 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…coating, painting and printing. Modeling the dynamics of a sessile drop as the drop first expands to wet the surface and then recedes due to the loss of volume from evaporation has been accomplished recently with very good qualitative agreement between the model and measurements of drop contact line radius and contact angle [1,2,3,4,5,6,7]. Good success has also been achieved in modeling the dynamics of a sessile drop which is pinned to a flat horizontal substrate [8,9,10,11].…”

Section: Introductionmentioning

confidence: 87%

“…Other approaches that have been taken to model the evaporation of sessile drops are to use a smoothing function or a separate evaporation model in the region of the contact line [2,3,4,5,6,7,8,11,14], or to use an empirically derived constant of proportionality to relate the total evaporation rate to the transient radius of the drop contact line [1,3,15]. Researchers also have worked to improve the expression for the evaporation rate of sessile drops by accounting for effects such as evaporative cooling [11,15] and parabolic surfaces [11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaporation of sessile drops under combined diffusion and natural convection

Kelly-Zion

Pursell

Vaidya

et al. 2011

Colloids and Surfaces A: Physicochemical and Engineering Aspect

123

View full text Add to dashboard Cite

Experiments were conducted to investigate the range of applicability of a commonly used assumption for evaporation models of sessile drops, that the transport mechanism that controls the evaporation is vapor diffusion. The evaporation rates of sessile drops of 3-methylpentane, hexane, cyclohexane, and heptane were measured. The radius of the drop contact line was constant during the measurements and drops of radius from 1 mm to 22 mm were studied. It was found that a diffusion-controlled evaporation model underpredicts the evaporation rate from 36% to 80% depending on the drop size. The increase in the evaporation rate was attributed to a second transport mechanism, natural convection of the vapors, and an empirical model was developed for conditions of combined diffusive and convective transport. Over the broad range of volatilities and drop sizes studied, the evaporation rates computed using the combined transport model agree with the measured values with less than 6% root mean square error.

show abstract

Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Evaporation of sessile drops under combined diffusion and natural convection

Kelly-Zion

Pursell

Vaidya

et al. 2011

Colloids and Surfaces A: Physicochemical and Engineering Aspect

123

View full text Add to dashboard Cite

show abstract

“…The time scale required for a molecule to move from the liquid to the gaseous phase, tr t , can be estimated as v l / , where l is the width of the transition zone between the phases, and v is the mean square velocity of molecules. If we estimate the width of the transition zone, l, between two phases equal to several mean free molecular paths, then Convection in air is neglected, because the experiments [19] did not reveal any difference in evaporation regimes with and without forced convection in the ambient air. Such assumption is justified below.…”

Section: Mathematical Modelling and Approximationsmentioning

confidence: 99%

Instantaneous distribution of fluxes in the course of evaporation of sessile liquid droplets: Computer simulations

Semenov

Starov

Rubio

et al. 2010

Colloids and Surfaces A: Physicochemical and Engineering Aspect

Self Cite

View full text Add to dashboard Cite

“…A universal behavior has been predicted and experimentally verified for both cases. For complete wetting the spreading/evaporation process proceeds in two stages [47]. A theory was suggested for this case and a good agreement with available experimental data was achieved [47].…”

Section: Stages Of Evaporation: Universal Behaviourmentioning

confidence: 69%

“…Recently a considerable progress in theoretical and experimental studies of simultaneous spreading and evaporation of liquid droplets on solid substrates has been achieved [47,48,49,50,51,52,53,54] in the case of both complete wetting [47] and partial wetting [48,49,50,51]. A universal behavior has been predicted and experimentally verified for both cases.…”

Section: Stages Of Evaporation: Universal Behaviourmentioning

confidence: 90%

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Spreading and evaporation of sessile droplets: Universal behaviour in the case of complete wetting

Cited by 39 publications

References 14 publications

Evaporation of sessile drops under combined diffusion and natural convection

Evaporation of sessile drops under combined diffusion and natural convection

Instantaneous distribution of fluxes in the course of evaporation of sessile liquid droplets: Computer simulations

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

Contact Info

Product

Resources

About