Interaction of pressure swirl spray with cross-flow
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU145642" target="_blank" >RIV/00216305:26210/22:PU145642 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s00161-022-01142-3" target="_blank" >https://link.springer.com/article/10.1007/s00161-022-01142-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00161-022-01142-3" target="_blank" >10.1007/s00161-022-01142-3</a>
Alternative languages
Result language
angličtina
Original language name
Interaction of pressure swirl spray with cross-flow
Original language description
Sprays are exposed to ambient flow in most of their applications, which alters the spray behaviour. The understanding of spray performance in realistic conditions allows for nozzle improvements, process intensification, or emission reductions. The present paper investigates the pressure-swirl atomizer operating at three Reynolds numbers in the inlet ports (Re-p) 960, 1330 and 1880, subjected to low-turbulence cross-flow with aerodynamic Weber number (We) from 0 to 7.1. High-speed visualization and phase Doppler anemometry (PDA) captured the characteristic shape and trajectory of the spray, droplet dynamics, droplet collisions, and spatial droplet distributions. An empirical correlation for a mean spray trajectory prediction was developed for a wide range of flow parameters. An analytical model of the droplet trajectory was assembled and validated using PDA data. The model accurately predicts trajectories for droplets larger than 40 mu m. A mutual interaction of droplets was investigated. Elevated cross-flow velocity (v) increased the impact Weber number and the total droplet collision rate and enhanced the droplet mixing. A bag breakup regime was observed for the liquid to the air momentum ratio (q) lower than 300. The bag breakup modified the initial droplet velocity. The experiments imply the formation of a complicated vortex structure around the pressure swirl spray in cross-flow.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Continuum Mech Therm
ISSN
0935-1175
e-ISSN
1432-0959
Volume of the periodical
34
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
1497-1515
UT code for WoS article
000846799300001
EID of the result in the Scopus database
2-s2.0-85137056225