Quantification of Dynamic Droplet Impact onto a Solid Surface by using a Digital Image Projection Technique

2017 ◽  
Author(s):  
Haixing Li ◽  
Kai Zhang ◽  
Rye M. Waldman ◽  
Hui Hu
Keyword(s):  
Solid Surface ◽  
Digital Image ◽  
Droplet Impact ◽  
Projection Technique ◽  
Image Projection

Hollow droplet impact on a solid surface

2021 ◽  
pp. 103740
Author(s):  
Mahdi Nasiri ◽  
Ghobad Amini ◽  
Christian Moreau ◽  
Ali Dolatabadi
Keyword(s):  
Solid Surface ◽  
Droplet Impact

scholarly journals Air film evolution during droplet impact onto a solid surface

2021 ◽  
Vol 33 (9) ◽  
pp. 092107
Author(s):  
Zunru Fu ◽  
Haichuan Jin ◽  
Jun Zhang ◽  
Tianyou Xue ◽  
Dongsheng Wen
Keyword(s):  
Solid Surface ◽  
Droplet Impact ◽  
Air Film

Droplet Impact on a Solid Surface

2010 ◽  
pp. 183-211 ◽  
Author(s):  
António L. N. Moreira ◽  
A. S. Moita ◽  
S. Chandra
Keyword(s):  
Solid Surface ◽  
Droplet Impact

Near Field Characteristics of Droplet Impact on Solid Surface using FTIR technique

2020 ◽  
Vol 2020 (0) ◽  
pp. OS06-29
Author(s):  
Hidehiko TAKAHASHI ◽  
Masao WATANABE ◽  
Kazumichi KOBAYASHI ◽  
Hiroyuki FUJII
Keyword(s):  
Solid Surface ◽  
Near Field ◽  
Droplet Impact ◽  
Ftir Technique

scholarly journals Pressure generated at the instant of impact between a liquid droplet and solid surface

2018 ◽  
Vol 5 (12) ◽  
pp. 181101 ◽  
Author(s):  
Y. Tatekura ◽  
M. Watanabe ◽  
K. Kobayashi ◽  
T. Sanada
Keyword(s):  
Solid Surface ◽  
Shape Factor ◽  
Liquid Droplet ◽  
Pressure Rise ◽  
Propagation Speed ◽  
Spherical Shape ◽  
Water Hammer ◽  
Droplet Impact ◽  
Maximum Pressure ◽  
The Impact

The prime objective of this study is to answer the question: How large is the pressure developed at the instant of a spherical liquid droplet impact on a solid surface? Engel first proposed that the maximum pressure rise generated by a spherical liquid droplet impact on a solid surface is different from the one-dimensional water-hammer pressure by a spherical shape factor (Engel 1955 J. Res. Natl Bur. Stand. 55 (5), 281–298). Many researchers have since proposed various factors to accurately predict the maximum pressure rise. We numerically found that the maximum pressure rise can be predicted by the combination of water-hammer theory and the shock relation; then, we analytically extended Engel’s elastic impact model, by realizing that the progression speed of the contact between the gas–liquid interface and the solid surface is much faster than the compression wavefront propagation speed at the instant of the impact. We successfully correct Engel’s theory so that it can accurately provide the maximum pressure rise at the instant of impact between a spherical liquid droplet and solid surface, that is, no shape factor appears in the theory.

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