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Complex Drop Impact Morphology
- Source :
- Langmuir. 31:9833-9844
- Publication Year :
- 2015
- Publisher :
- American Chemical Society (ACS), 2015.
-
Abstract
- The aim of this work is to understand the changes in the observed phenomena during particle-laden drop impact. The impact of millimeter-size drops was investigated onto hydrophilic (glass) and hydrophobic (polycarbonate) substrates. The drops were dispersions of water and spherical and nearly iso-dense hydrophobic particles with diameters of 200 and 500 μm. The impact was studied by side and bottom view images in the range 150 ≤ We ≤ 750 and 7100 ≤ Re ≤ 16400. The particles suppressed the appearance of singular jetting and drop partial rebound but promoted splashing, receding breakup, and rupture. The drops with 200 μm particles spread in two phases: fast and slow, caused by inertial and capillary forces, respectively. Also, the increase in volume fraction of 200 μm particle led to a linear decrease in the maximum spreading factor caused by the inertia force on both hydrophilic and hydrophobic substrates. The explanation of this reduction was argued to be the result of energy dissipation through frictional losses between particles and the substrate.
- Subjects :
- Materials science
Capillary action
02 engineering and technology
01 natural sciences
Optics
Spreading factor
0103 physical sciences
Electrochemistry
General Materials Science
Composite material
Polycarbonate
010306 general physics
Spectroscopy
business.industry
Drop (liquid)
Surfaces and Interfaces
Dissipation
021001 nanoscience & nanotechnology
Condensed Matter Physics
Breakup
Drop impact
visual_art
Volume fraction
visual_art.visual_art_medium
0210 nano-technology
business
Subjects
Details
- ISSN :
- 15205827 and 07437463
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Langmuir
- Accession number :
- edsair.doi.dedup.....9f6dd16b9d665dcd96d746cb1617842f