Capillary drainage of a sessile droplet through a hole

2020 ◽  
Vol 5 (10) ◽  
Author(s):  
Songlin Shi ◽  
Jinlong Song ◽  
Bin Zhang ◽  
Chen Ma ◽  
Pan Jia ◽  
...  
Keyword(s):  
Sessile Droplet ◽  
Capillary Drainage

scholarly journals Fluid flow structures in an evaporating sessile droplet depending on the droplet size and properties of liquid and substrate

2021 ◽  
Vol 1730 (1) ◽  
pp. 012029
Author(s):  
M.N. Turchaninova ◽  
E.S. Melnikova ◽  
A.A. Gavrilina ◽  
L.Yu. Barash
Keyword(s):  
Fluid Flow ◽  
Droplet Size ◽  
Flow Structures ◽  
Sessile Droplet

Detection & Collection of Bacteria in an Evaporating Sessile Droplet

2014 ◽  
Vol 136 (8) ◽  
Author(s):  
Jung-Yeul Jung ◽  
Yong Tae Kang ◽  
Chang Kyoung Choi
Keyword(s):  
Sessile Droplet

Photogallery Entry 2

Evaporating characteristics of sessile droplet on hydrophobic and hydrophilic surfaces

2009 ◽  
Vol 86 (4-6) ◽  
pp. 1350-1353 ◽  
Author(s):  
Dong Hwan Shin ◽  
Seong Hyuk Lee ◽  
Jung-Yeul Jung ◽  
Jung Yul Yoo
Keyword(s):  
Sessile Droplet ◽  
Hydrophilic Surfaces

Marangoni convection instability in a sessile droplet with low volatility on heated substrate

2017 ◽  
Vol 117 ◽  
pp. 274-286 ◽  
Author(s):  
Wan-Yuan Shi ◽  
Kai-Yi Tang ◽  
Jia-Nan Ma ◽  
Yi-Wei Jia ◽  
Han-Ming Li ◽  
...  
Keyword(s):  
Marangoni Convection ◽  
Sessile Droplet ◽  
Heated Substrate

scholarly journals Self-Sorting of Bidispersed Colloidal Particles Near Contact Line of an Evaporating Sessile Droplet

Langmuir ◽  
2018 ◽  
Vol 34 (40) ◽  
pp. 12058-12070 ◽  
Author(s):  
Nagesh D. Patil ◽  
Rajneesh Bhardwaj ◽  
Atul Sharma
Keyword(s):  
Contact Line ◽  
Colloidal Particles ◽  
Sessile Droplet

Theoretically-Based Leidenfrost Point Model

2000 ◽  
Author(s):  
John D. Bernardin ◽  
Issam Mudawar
Keyword(s):  
Bubble Nucleation ◽  
Liquid Gallium ◽  
Interface Temperature ◽  
Sessile Droplet ◽  
Solid Interface ◽  
Leidenfrost Temperature ◽  
Size Characterization ◽  
Surface Cavity ◽  
Effect Of Surface ◽  
Good Agreement

Abstract This study presents a theoretically-based model of the Leidenfrost point (LFP); the minimum liquid/solid interface temperature required to support film boiling on a smooth surface. The model is structured around bubble nucleation, growth, and merging criteria, as well as surface cavity size characterization. It is postulated that for liquid/solid interface temperatures at and above the LFP, a sufficient number of cavities (about 20%) are activated and the bubble growth rates are sufficiently fast that a continuous vapor layer is established nearly instantaneously between the liquid and the solid. The model is applicable to both pools of liquid and sessile droplets. The effect of surface cavity distribution on the LFP predicted by the model is verified for boiling on aluminum, nickel and silver surfaces, as well as on a liquid gallium surface. The model exhibits good agreement with experimental sessile droplet data for water, FC-72, and acetone. While the model was developed for smooth surfaces on which the roughness asperities are of the same magnitude as the cavity radii (0.1–1.0 μm), it is capable of predicting the boundary or limiting Leidenfrost temperature for rougher surfaces with good accuracy.

Determining Micro Droplet Profile Using Internal Reflection Interference Fringes

2020 ◽  
Author(s):  
Iltai Isaac Kim ◽  
Yang Li ◽  
Jaesung Park
Keyword(s):  
Contact Angle ◽  
Liquid Droplet ◽  
Surface Profile ◽  
Morphological Features ◽  
Internal Reflection ◽  
Sessile Droplet ◽  
Spherical Droplet ◽  
Interference Fringes ◽  
The One ◽  
Air Liquid Interface

Abstract We introduce an optical diagnostics to determine the morphological features of liquid droplet such as the thickness, the contact angle, and the dual profile using internal reflection interferometry. A coherent laser beam is internally reflected on the air/liquid interface of a sessile droplet placed on a prism-based substrate to produce an interference fringe on a screen far from the substrate. The reflected laser rays consist of the reflection from the center spherical droplet profile and the one from the lower hyperbola-like droplet profile. The reflected rays are interfered each other to form the interference fringes. Ray tracing simulation is conducted using a custom-designed computer program. The simulation shows that the interfering rays reflected near the inflection point produce the outer-most fringes of the concentric interference pattern on the screen, and the reflected rays from the apex of the spherical profile and the contact line of the lower hyperbola-like profile construct the fringes at the center of the interference patterns. The simulated results are compared with the experimental observation to show a good agreement in the number and the location of the fringes and the radius of the outer-most-fringe where the number of the fringes is dependent on the droplet thickness and the radius of the fringe depends on the contact angle of the droplet. This result provides a new measurement technique to determine the morphological features of very small microdroplet such as the thickness (< a few micron thickness), the contact angle (< a few degree), and the dual-surface profile.

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