Abstract
We show the ranges of droplet size reduction depending on the relative velocity before interaction, initial dimensions of each of the droplets and their ratio, as well as the Weber, Ohnesorge, Reynolds, and capillary numbers. Experiments are conducted for water, Diesel fuel emulsion, and castor oil emulsion. The ranges of a prospective increase in the liquid surface area due to droplet collisions as a function of the variable parameters are determined. We single out three Weber variation intervals: <50 (drastic change in the number of child droplets), 50–150 (lower increment rate of the number of child droplets), >150 (the number and dimensions of child droplets remain the same with an increase in the Weber number). The number and average size of child droplets are influenced by the relative velocity of the two parent drops, the ratio of their dimensions, as well as the angular and linear collision parameters.
| Original language | English |
|---|---|
| Pages (from-to) | 122-134 |
| Number of pages | 13 |
| Journal | Powder Technology |
| Volume | 363 |
| DOIs | |
| Publication status | Published - 1 Mar 2020 |
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Keywords
- Child droplets
- Collisions
- Liquid droplets
- Liquid surface area
- Secondary atomization
- Size distributions
ASJC Scopus subject areas
- Chemical Engineering(all)
Cite this
Experimental research into the characteristics of child droplets formed due to collisions of liquid fragments in a gas. / Shlegel, N. E.; Solomatin, Ya S.; Strizhak, P. A.
In: Powder Technology, Vol. 363, 01.03.2020, p. 122-134.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental research into the characteristics of child droplets formed due to collisions of liquid fragments in a gas
AU - Shlegel, N. E.
AU - Solomatin, Ya S.
AU - Strizhak, P. A.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - We show the ranges of droplet size reduction depending on the relative velocity before interaction, initial dimensions of each of the droplets and their ratio, as well as the Weber, Ohnesorge, Reynolds, and capillary numbers. Experiments are conducted for water, Diesel fuel emulsion, and castor oil emulsion. The ranges of a prospective increase in the liquid surface area due to droplet collisions as a function of the variable parameters are determined. We single out three Weber variation intervals: <50 (drastic change in the number of child droplets), 50–150 (lower increment rate of the number of child droplets), >150 (the number and dimensions of child droplets remain the same with an increase in the Weber number). The number and average size of child droplets are influenced by the relative velocity of the two parent drops, the ratio of their dimensions, as well as the angular and linear collision parameters.
AB - We show the ranges of droplet size reduction depending on the relative velocity before interaction, initial dimensions of each of the droplets and their ratio, as well as the Weber, Ohnesorge, Reynolds, and capillary numbers. Experiments are conducted for water, Diesel fuel emulsion, and castor oil emulsion. The ranges of a prospective increase in the liquid surface area due to droplet collisions as a function of the variable parameters are determined. We single out three Weber variation intervals: <50 (drastic change in the number of child droplets), 50–150 (lower increment rate of the number of child droplets), >150 (the number and dimensions of child droplets remain the same with an increase in the Weber number). The number and average size of child droplets are influenced by the relative velocity of the two parent drops, the ratio of their dimensions, as well as the angular and linear collision parameters.
KW - Child droplets
KW - Collisions
KW - Liquid droplets
KW - Liquid surface area
KW - Secondary atomization
KW - Size distributions
UR - http://www.scopus.com/inward/record.url?scp=85077798238&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85077798238&partnerID=8YFLogxK
U2 - 10.1016/j.powtec.2019.12.034
DO - 10.1016/j.powtec.2019.12.034
M3 - Article
AN - SCOPUS:85077798238
VL - 363
SP - 122
EP - 134
JO - Powder Technology
JF - Powder Technology
SN - 0032-5910
ER -