A modeling study of different kinds of sessile droplets on the horizontal surface with surface wettability and gravity effects considered

Dang, Qun; Song, Mengjie; Mao, Ning; Qu, Minglu; Wang, Xiaotao

doi:10.1016/j.enss.2021.11.002

Cited by 6 publications

(3 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As for the surface tension coefficient, it can be calculated by Young–Laplace equation, which is based on our previous work . The geometric profile of an axisymmetric droplet on a flat solid surface can be described by the Young–Laplace equation, which was expressed as follows. where x and z are respectively horizontal and vertical distances from the coordinate origin, as shown in Figure .…”

Section: Methodsmentioning

confidence: 99%

“…Assuming that V Initial and V Frozen are the volumes of initial and frozen droplets, respectively, volumetric expansion coefficient, ϕ, before and after the freezing process could be calculated by As for the surface tension coefficient, it can be calculated by Young−Laplace equation, which is based on our previous work. 31 The geometric profile of an axisymmetric droplet on a flat solid surface can be described by the Young−Laplace equation, which was expressed as follows.…”

Section: ■ Methodologymentioning

confidence: 99%

See 1 more Smart Citation

Experimental Study on Solidification Characteristics of Sessile Urine Droplets on a Horizontal Cold Plate Surface under Natural Convection

et al. 2022

Self Cite

View full text Add to dashboard Cite

As the human excreta, urine is often used as one of the test materials in medical research due to its composition and content directly reflecting the health status of the body. Considering that the substances in urine may show different effects on its freezing process, solidification characteristics of sessile urine droplets on a horizontal cold plate surface under natural convection were experimentally investigated by comparing with those of water droplets under same conditions. To make the conclusion analysis more reasonable, the urine of a human without any diseases, especially metabolic diseases, was treated and used. The characteristics include nucleation location, dynamic variation of droplet color, and temperatures at different heights inside the droplet, and so forth. It was found that, similar to that of a water droplet, the solidification process of a urine droplet also experiences the following four stages: supercooling, recalescence, freezing, and cooling, in chronological order. Differently, the urine droplet changes from transparent to blur white at the supercooling stage due to the precipitation of inorganic salts. For nucleation locations, 46.67% cases are at the bottom, while others are at the top and middle of urine droplets. For a 10 μL droplet on a surface of −30 °C, urine has a 0.95 s freezing duration shorter than water, and a 5.31 °C lower phase-transition temperature. Results of this study are expected to reflect the content of substances in urine and thus provide references for urinalysis of patients with metabolic diseases.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: ■ Methodologymentioning

confidence: 99%

Experimental Study on Solidification Characteristics of Sessile Urine Droplets on a Horizontal Cold Plate Surface under Natural Convection

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Dang et al, 20 and Srinivasan et al 21 also used the differential eq 3 to calculate the shape of a sessile drop.…”

Section: Introductionmentioning

confidence: 99%

Bézier Curve Method to Compute Various Meniscus Shapes

Lewis

Matsuura

2023

ACS Omega

View full text Add to dashboard Cite

This paper is an extension of our earlier paper in which it was shown that the meniscus shape in a cylindrical capillary could be computed by solving the Young−Laplace equation via optimization of a Beźier curve. This work extends the previous work by demonstrating that the method is applicable to predict the meniscus shape not only in a cylindrical capillary but also in other cases, such as at a tilted plate, between two plates, and for a sessile drop. Numerous works have attempted previously to solve the Young−Laplace equation, and their results all agree with this paper's validating its method. All the preceding approaches, however, used special techniques to solve the differential equation, while the Beźier curve method proposed in this work is more simple, which allows it to maintain greater computational simplicity. Moreover, the Beźier curve method can be applied to solve many other different differential equations in the same way as shown in this work. The effect of the Beźier curve degree on the precision of prediction was also thoroughly investigated. It was found that the 4th degree Beźier curve was required to predict the meniscus shape precisely in a cylindrical capillary, against a tilted plate, and between two plates, while the 5th degree was required for the shape of the sessile drop.

show abstract

Review on thermal management technologies for electronics in spacecraft environment

Lv,

Wang,

Meng

et al. 2024

Energy Storage and Saving

View full text Add to dashboard Cite

A modeling study of different kinds of sessile droplets on the horizontal surface with surface wettability and gravity effects considered

Cited by 6 publications

References 35 publications

Experimental Study on Solidification Characteristics of Sessile Urine Droplets on a Horizontal Cold Plate Surface under Natural Convection

Experimental Study on Solidification Characteristics of Sessile Urine Droplets on a Horizontal Cold Plate Surface under Natural Convection

Bézier Curve Method to Compute Various Meniscus Shapes

Review on thermal management technologies for electronics in spacecraft environment

Contact Info

Product

Resources

About