Spontaneous motion of a water droplet on hydrophilic and curvature gradient conical-shaped surfaces

2012 ◽  
Author(s):  
Y. C. Chuang ◽  
H.Y. Hsieh ◽  
Quanshui Zheng ◽  
F. G. Tseng
Keyword(s):  
Water Droplet ◽  
Curvature Gradient ◽  
Spontaneous Motion

Spreading and Deposition Characteristics of a Water Droplet Impacting on Hydrophobic Textured Surfaces

2012 ◽  
Vol 17 (1) ◽  
pp. 14-19
Author(s):  
Jae-Bong Lee ◽  
Joo-Hyun Moon ◽  
Seong-Hyuk Lee
Keyword(s):  
Water Droplet ◽  
Textured Surfaces

EVAPORATION OF SINGLE WATER DROPLET UNDER LASER IRRADIATION

2018 ◽  
Author(s):  
Pei Zhang ◽  
Chuang Sun ◽  
Fengxian Sun ◽  
Zicheng Jin
Keyword(s):  
Laser Irradiation ◽  
Water Droplet

IMPROVED LUMPED-DIFFERENTIAL ANALYSIS OF THE FREEZING PROCESS IN A SUPERCOOLED WATER DROPLET

2020 ◽  
Author(s):  
Emerson Barbosa dos Anjos ◽  
Carolina Palma Naveira Cotta ◽  
Renato Machado Cotta ◽  
Igor Soares Carvalho ◽  
Manish Tiwari
Keyword(s):  
Water Droplet ◽  
Supercooled Water ◽  
Freezing Process ◽  
Differential Analysis

Case study: Theoretical calculation model and variable condition analysis research on the water-splashing noise for natural draft wet cooling towers

2020 ◽  
Vol 68 (2) ◽  
pp. 137-145
Author(s):  
Yang Zhouo ◽  
Ming Gao ◽  
Suoying He ◽  
Yuetao Shi ◽  
Fengzhong Sun
Keyword(s):  
Theoretical Model ◽  
Sound Pressure Level ◽  
Water Droplet ◽  
Water Distribution ◽  
Sound Pressure ◽  
Cooling Tower ◽  
Distribution Patterns ◽  
Calculation Model ◽  
Pressure Level ◽  
Cooling Towers

Based on the basic theory of water droplets impact noise, the generation mechanism and calculation model of the water-splashing noise for natural draft wet cooling towers were established in this study, and then by means of the custom software, the water-splashing noise was studied under different water droplet diameters and water-spraying densities as well as partition water distribution patterns conditions. Comparedwith the water-splashing noise of the field test, the average difference of the theoretical and the measured value is 0.82 dB, which validates the accuracy of the established theoretical model. The results based on theoretical model showed that, when the water droplet diameters are smaller in cooling tower, the attenuation of total sound pressure level of the water-splashing noise is greater. From 0 m to 8 m away from the cooling tower, the sound pressure level of the watersplashing noise of 3 mm and 6 mm water droplets decreases by 8.20 dB and 4.36 dB, respectively. Additionally, when the water-spraying density becomes twice of the designed value, the sound pressure level of water-splashing noise all increases by 3.01 dB for the cooling towers of 300 MW, 600 MW and 1000 MW units. Finally, under the partition water distribution patterns, the change of the sound pressure level is small. For the R s/2 and Rs/3 partition radius (Rs is the radius of water-spraying area), when the water-spraying density ratio between the outer and inner zone increases from 1 to 3, the sound pressure level of water-splashing noise increases by 0.7 dB and 0.3 dB, respectively.

scholarly journals Focused surface acoustic wave locally removes cells from culture surface

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Takumi Inui ◽  
Jiyang Mei ◽  
Chikahiro Imashiro ◽  
Yuta Kurashina ◽  
James Friend ◽  
...  
Keyword(s):  
Cell Culture ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Water Droplet ◽  
C2c12 Cells ◽  
Area 6 ◽  
Culture Surface

After exposing a plated C2C12 cells culture to PBS, ultrasound from the SAW device transmitted into the cell culture via a coupling water droplet. We can remove cells from an area 6 × 10−3 mm2, equivalent to about 12 cells.

Initial-Position-Driven Opposite Directional Transport of Water Droplet on Wedge-Shaped Groove

Nanoscale ◽  
2021 ◽  
Author(s):  
Shaoqian Hao ◽  
Xie Zhang ◽  
Zheng Li ◽  
Jianlong Kou ◽  
Fengmin Wu
Keyword(s):  
Water Droplet ◽  
Initial Position ◽  
Water Droplets ◽  
Transport Direction ◽  
Directional Transport ◽  
Prevailing View ◽  
Functionalized Surface

Transport direction of water droplets on a functionalized surface is of great significance due to its wide applications in microfluidics technology. The prevailing view is that a water droplet on...

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