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Ballistic imaging in the near-field of an effervescent spray

Linne, Mark; Sedarsky, David LU ; Meyer, Terrence; Gord, James and Carter, Campbell (2010) In Experiments in Fluids 49(4). p.911-923
Abstract
We have investigated liquid breakup mechanisms in the near nozzle region of a high-pressure effervescent atomizer using ballistic imaging. This technique has revealed various breakup regimes depending upon total flow rate and the gas-to-liquid ratio (GLR). At low total speeds, the jet does not exhibit the wide spread angle and rapid breakup for which effervescent sprays are known, even at high GLR. Above a distinct threshold value for total flow rate, the jet passes through several recognizable flow regimes depending on GLR and it does achieve the expected wide spread angle and rapid breakup. Intermediate GLR's produce interesting flow patterns that seem to be generated by surging at the nozzle exit, and this surging can probably be... (More)
We have investigated liquid breakup mechanisms in the near nozzle region of a high-pressure effervescent atomizer using ballistic imaging. This technique has revealed various breakup regimes depending upon total flow rate and the gas-to-liquid ratio (GLR). At low total speeds, the jet does not exhibit the wide spread angle and rapid breakup for which effervescent sprays are known, even at high GLR. Above a distinct threshold value for total flow rate, the jet passes through several recognizable flow regimes depending on GLR and it does achieve the expected wide spread angle and rapid breakup. Intermediate GLR's produce interesting flow patterns that seem to be generated by surging at the nozzle exit, and this surging can probably be attributed to the flow pattern just at the nozzle exit. Indeed, specific interior flows seem to generate the most rapid breakup and should be investigated further. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Experiments in Fluids
volume
49
issue
4
pages
911 - 923
publisher
Springer
external identifiers
  • wos:000282215500013
  • scopus:78149470493
ISSN
1432-1114
DOI
10.1007/s00348-010-0883-3
language
English
LU publication?
yes
id
da8f31d3-b169-4a56-8edb-ed1cb0bec202 (old id 1695288)
date added to LUP
2010-10-27 13:39:43
date last changed
2018-05-29 10:42:57
@article{da8f31d3-b169-4a56-8edb-ed1cb0bec202,
  abstract     = {We have investigated liquid breakup mechanisms in the near nozzle region of a high-pressure effervescent atomizer using ballistic imaging. This technique has revealed various breakup regimes depending upon total flow rate and the gas-to-liquid ratio (GLR). At low total speeds, the jet does not exhibit the wide spread angle and rapid breakup for which effervescent sprays are known, even at high GLR. Above a distinct threshold value for total flow rate, the jet passes through several recognizable flow regimes depending on GLR and it does achieve the expected wide spread angle and rapid breakup. Intermediate GLR's produce interesting flow patterns that seem to be generated by surging at the nozzle exit, and this surging can probably be attributed to the flow pattern just at the nozzle exit. Indeed, specific interior flows seem to generate the most rapid breakup and should be investigated further.},
  author       = {Linne, Mark and Sedarsky, David and Meyer, Terrence and Gord, James and Carter, Campbell},
  issn         = {1432-1114},
  language     = {eng},
  number       = {4},
  pages        = {911--923},
  publisher    = {Springer},
  series       = {Experiments in Fluids},
  title        = {Ballistic imaging in the near-field of an effervescent spray},
  url          = {http://dx.doi.org/10.1007/s00348-010-0883-3},
  volume       = {49},
  year         = {2010},
}