Dynamic wetting of various liquids: Theoretical models, experiments, simulations and applications

Zhang, Yichuan; Guo, Mingming; Seveno, David; Coninck, J. De

doi:10.1016/j.cis.2023.102861

Cited by 26 publications

(7 citation statements)

References 220 publications

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“…where the prime represents the derivative regarding w. When w = 0, it corresponds to the boundary condition at the liquid source (j = 0), i.e., H(0) = r w | j=0 4 0, and from eqn (27) it leads to:…”

Section: Theoretical Analysismentioning

confidence: 99%

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Spontaneous imbibition of a liquid film wetting a wall-mounted cylinder corner

Suo

2024

Soft Matter

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Section: Theoretical Analysismentioning

confidence: 99%

“…Furthermore, since the moving velocity of the contact line remains low, I assume a constant contact angle during the whole process rather than a dynamic one. 27 With the contact angle θ and wetting width r w , the film thickness h as a function of r is expressed as:where R 0 is the cylinder radius and R = r w /(cos θ − sin θ ).…”

Section: Theoretical Modelmentioning

confidence: 99%

Spontaneous imbibition of a liquid film wetting a wall-mounted cylinder corner

Suo

2024

Soft Matter

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“…As pointed out earlier, the apparent contact angle of a specific liquid on a substrate is a function of the contact line velocity. Research on dynamic wetting is essential as it underpins advancements in numerous fields, including microfluidics, printing technology, and coatings. , Similarly, dynamic wetting of complex fluids is also a promising research area . Moreover, the impact of such complex fluids on soft materials is also gaining attention.…”

Section: Current Challenges and Future Directionsmentioning

confidence: 99%

Fundamentals and Applications of Surface Wetting

Josyula,

Kumar Malla,

Thomas

et al. 2024

Langmuir

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In an era defined by an insatiable thirst for sustainable energy solutions, responsible water management, and cutting-edge lab-on-a-chip diagnostics, surface wettability plays a pivotal role in these fields. The seamless integration of fundamental research and the following demonstration of applications on these groundbreaking technologies hinges on manipulating fluid through surface wettability, significantly optimizing performance, enhancing efficiency, and advancing overall sustainability. This Review explores the behavior of liquids when they engage with engineered surfaces, delving into the farreaching implications of these interactions in various applications. Specifically, we explore surface wetting, dissecting it into three distinctive facets. First, we delve into the fundamental principles that underpin surface wetting. Next, we navigate the intricate liquid−surface interactions, unraveling the complex interplay of various fluid dynamics, as well as heat-and mass-transport mechanisms. Finally, we report on the practical realm, where we scrutinize the myriad applications of these principles in everyday processes and real-world scenarios.

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“…Contact line velocity is a vital factor in DAC measurements. It is well known that the DCA is velocity dependent, 40 which introduces an element of uncertainty. To eliminate the impact of velocity, one should inject water into the droplet at a very low rate to keep the droplet in a metastable state until the three-phase contact line is going to advance.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Temperature Dependence of the Dynamic Contact Angles of Water on a Smooth Stainless-Steel Surface under Elevated Pressures

Fu,

Li,

Fan

2024

Langmuir

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The temperature dependence of the dynamic contact angles (DCAs) of water on a metallic surface remains unclear, especially under elevated pressures. Here in this work, the advancing and receding contact angles (RCAs), as well as the contact angle hysteresis (CAH), of water on stainless-steel 316 (SS316) surfaces were studied using the dynamic sessile drop method for temperatures up to 300 °C and pressures up to 10 MPa. It was found that the temperature dependence of the DCAs exhibits a different pattern as compared to the piecewise linear decline of static contact angles. The advancing contact angle (ACA) remains nearly constant and does not decrease until the temperature becomes close to the saturated temperature. The decrease in ACA is attributed to evaporation, which reduces the advancement of energy barrier. The RCA linearly declines below 120 °C and remains stable above 120 °C. The increasing temperature enhances the pinning effect and changes the droplet receding mode. Under all pressures tested, the CAH demonstrates a "increaseconstant-decrease" trilinear relationship with temperature. Furthermore, the mean solid surface entropy and solid−gas interfacial tension of SS316 were estimated to be 0.1152 mJ/(m 2 •°C) and 61.49 mJ/m 2 , respectively.

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Dynamic wetting of various liquids: Theoretical models, experiments, simulations and applications

Cited by 26 publications

References 220 publications

Spontaneous imbibition of a liquid film wetting a wall-mounted cylinder corner

Spontaneous imbibition of a liquid film wetting a wall-mounted cylinder corner

Fundamentals and Applications of Surface Wetting

Temperature Dependence of the Dynamic Contact Angles of Water on a Smooth Stainless-Steel Surface under Elevated Pressures

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