Detail publikačního výsledku

The influence of spill-line geometry on a spray generated by a pressure-swirl atomizer

MALÝ, M.; JANÁČKOVÁ, L.; JEDELSKÝ, J.; JÍCHA, M.

Originální název

The influence of spill-line geometry on a spray generated by a pressure-swirl atomizer

Anglický název

The influence of spill-line geometry on a spray generated by a pressure-swirl atomizer

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

An experimental investigation of characteristics of spray generated by a pressure-swirl atomizer (spill-return type) was performed using shadowgraphy and Phase-Doppler Anemometry (PDA). Several different geometries of the spill-return orifice were tested in terms of a spray stability and quality on a cold test bench. PDA measurement yields a drop-size distribution and velocity data while the shadowgraphy unveils a break-up process in detail. Performed measurements reveal significant differences in spray characteristics as well as differences in spray stability. The results suggest that the air core, formed inside the swirl chamber, passes through the spill orifice, which causes instability of the inner flow. These instabilities lead to a chaotic state of sheet breakup resulting in shortening of breakup distance. Obtained findings are used to propose possible changes in the atomizer design for improvement of its performance.

Anglický abstrakt

An experimental investigation of characteristics of spray generated by a pressure-swirl atomizer (spill-return type) was performed using shadowgraphy and Phase-Doppler Anemometry (PDA). Several different geometries of the spill-return orifice were tested in terms of a spray stability and quality on a cold test bench. PDA measurement yields a drop-size distribution and velocity data while the shadowgraphy unveils a break-up process in detail. Performed measurements reveal significant differences in spray characteristics as well as differences in spray stability. The results suggest that the air core, formed inside the swirl chamber, passes through the spill orifice, which causes instability of the inner flow. These instabilities lead to a chaotic state of sheet breakup resulting in shortening of breakup distance. Obtained findings are used to propose possible changes in the atomizer design for improvement of its performance.

Klíčová slova

Spill-line, Pressure-swirl, Phase Doppler Anemometry,

Klíčová slova v angličtině

Spill-line, Pressure-swirl, Phase Doppler Anemometry,

Autoři

MALÝ, M.; JANÁČKOVÁ, L.; JEDELSKÝ, J.; JÍCHA, M.

Rok RIV

2017

Vydáno

28.03.2016

Nakladatel

EDP Sciences

Kniha

EPJ Web of Conferences

ISSN

2100-014X

Periodikum

EPJ Web of Conferences

Svazek

114

Číslo

2016

Stát

Francouzská republika

Strany od

1

Strany do

6

Strany počet

6

URL

https://www.epj-conferences.org/articles/epjconf/abs/2016/09/epjconf_efm2016_02070/epjconf_efm2016_02070.html

Plný text v Digitální knihovně

http://hdl.handle.net/11012/70147

BibTex

@inproceedings{BUT127916,
  author="Milan {Malý} and Lada {Janáčková} and Jan {Jedelský} and Miroslav {Jícha}",
  title="The influence of spill-line geometry on a spray generated by a pressure-swirl atomizer",
  booktitle="EPJ Web of Conferences",
  year="2016",
  journal="EPJ Web of Conferences",
  volume="114",
  number="2016",
  pages="1--6",
  publisher="EDP Sciences",
  doi="10.1051/epjconf/201611402070",
  issn="2100-014X",
  url="https://www.epj-conferences.org/articles/epjconf/abs/2016/09/epjconf_efm2016_02070/epjconf_efm2016_02070.html"
}

Dokumenty

epjconf_efm2016_02070