Splat-quench solidification: estimating the maximum spreading of a droplet impacting a solid surface

1993 ◽  
Vol 28 (4) ◽  
pp. 963-970 ◽  
Author(s):  
T. Bennett ◽  
D. Poulikakos
Keyword(s):  
Solid Surface ◽  
Maximum Spreading

Energetic analysis of drop’s maximum spreading on solid surface with low impact speed

2018 ◽  
Vol 30 (2) ◽  
pp. 022106 ◽  
Author(s):  
Hai-Meng Huang ◽  
Xiao-Peng Chen
Keyword(s):  
Solid Surface ◽  
Impact Speed ◽  
Energetic Analysis ◽  
Maximum Spreading

scholarly journals The effects of surface tension on the spreading ratio during the impact of multiple droplets onto a hot solid surface

2018 ◽  
Vol 197 ◽  
pp. 08016
Author(s):  
Rafil Arizona ◽  
Teguh Wibowo ◽  
Indarto Indarto ◽  
Deendarlianto Deendarlianto
Keyword(s):  
Surface Tension ◽  
Ethylene Glycol ◽  
Solid Surface ◽  
High Speed ◽  
Frame Rate ◽  
Stainless Steel Surface ◽  
Droplet Spreading ◽  
Secondary Droplets ◽  
The Impact ◽  
Maximum Spreading

The impact between multiple droplets onto hot surface is an important process in a spray cooling. The present study was conducted to investigate the dynamics of multiple droplet impact under various surface tensions. Here, the ethylene glycol with compositions of 0%, 5%, and 15% was injected through a nozzle onto stainless steel surface as the multiple droplet. The solid surface was heated at the temperatures of 100 °C, 150 °C, and 200 °C. To observe the dynamics of multiple droplets, a high speed camera with the frame rate of 2000 fps was used. A technique of image processing was developed to determine the maximum droplet spreading ratio. As the result, the surface tension contributes significantly to maximum spreading ratio. As the droplet surface tension decreases, the maximum spreading ratio increases. The maximum spreading ratio appears when the percentage of the ethylene glycol is 15% at the temperature of 150°C. From the visual observation, it is shown that a slower emergence of secondary droplets (droplet splashing) is carried out under a lower surface tension. Hence, surface tension plays an important role on the behavior of emerging secondary droplets. Furthermore, results of the experiments are useful for the validation of available previous CFD models.

Maximum Spreading for Liquid Drop Impacting on Solid Surface

2019 ◽  
Vol 58 (23) ◽  
pp. 10053-10063 ◽  
Author(s):  
Gangtao Liang ◽  
Yang Chen ◽  
Liuzhu Chen ◽  
Shengqiang Shen
Keyword(s):  
Solid Surface ◽  
Liquid Drop ◽  
Maximum Spreading
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