Detail publikačního výsledku

POD ANALYSIS OF STABLE AND UNSTABLE EFFERVESCENT SPRAY

MALÝ, M.; CEJPEK, O.; HÁJEK, J.; JEDELSKÝ, J.

Originální název

POD ANALYSIS OF STABLE AND UNSTABLE EFFERVESCENT SPRAY

Anglický název

POD ANALYSIS OF STABLE AND UNSTABLE EFFERVESCENT SPRAY

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Effervescent atomization is influenced by the atomizer's internal geometry, operational parameters, and additional components, such as bubble-breakers or velocity profile modifying inserts. This study investigates the liquid discharge of three effervescent atomizers with a central liquid inlet at gas-to-liquid mass ratios (GLR) from 1 to 10%. The atomizers differ by having inserts in the liquid inlet line. These inserts aim to improve discharge stability by changing liquid velocity profile at the aeration point and reducing pressure waves through increase in liquid pressure-drop. Proper orthogonal decomposition (POD) analysis shows that the inserts reduce spray unsteadiness and change dominant flow patterns. This results in finer sprays without presence of liquid jets. The stable configurations also show less variance concentrated in the dominant modes.

Anglický abstrakt

Effervescent atomization is influenced by the atomizer's internal geometry, operational parameters, and additional components, such as bubble-breakers or velocity profile modifying inserts. This study investigates the liquid discharge of three effervescent atomizers with a central liquid inlet at gas-to-liquid mass ratios (GLR) from 1 to 10%. The atomizers differ by having inserts in the liquid inlet line. These inserts aim to improve discharge stability by changing liquid velocity profile at the aeration point and reducing pressure waves through increase in liquid pressure-drop. Proper orthogonal decomposition (POD) analysis shows that the inserts reduce spray unsteadiness and change dominant flow patterns. This results in finer sprays without presence of liquid jets. The stable configurations also show less variance concentrated in the dominant modes.

Klíčová slova

effervescent, atomizer, spray, proper orthogonal decomposition, POD

Klíčová slova v angličtině

effervescent, atomizer, spray, proper orthogonal decomposition, POD

Autoři

MALÝ, M.; CEJPEK, O.; HÁJEK, J.; JEDELSKÝ, J.

Rok RIV

2026

Vydáno

01.01.2025

Nakladatel

Acad Sci Czech Republic, Inst Thermomechanics

Místo

PRAGUE 8

Kniha

Topical Problems of Fluid Mechanics

Periodikum

Topical Problems of Fluid Mechanics ...

Svazek

1

Stát

Česká republika

Strany od

167

Strany do

172

Strany počet

6

URL

https://tpfm.it.cas.cz/im/im/proceeding/2025/22

BibTex

@inproceedings{BUT200734,
  author="{} and Milan {Malý} and Ondřej {Cejpek} and  {} and Jiří {Hájek} and  {} and Jan {Jedelský}",
  title="POD ANALYSIS OF STABLE AND UNSTABLE EFFERVESCENT SPRAY",
  booktitle="Topical Problems of Fluid Mechanics",
  year="2025",
  journal="Topical Problems of Fluid Mechanics ...",
  volume="1",
  pages="167--172",
  publisher="Acad Sci Czech Republic, Inst Thermomechanics",
  address="PRAGUE 8",
  doi="10.14311/TPFM.2025.022",
  issn="2336-5781",
  url="https://tpfm.it.cas.cz/im/im/proceeding/2025/22"
}