Detail publikačního výsledku

Unsteadiness in Effervescent Sprays: a New Evaluation Method and the Influence of Operational Conditions

JEDELSKÝ, J.; JÍCHA, M.

Originální název

Unsteadiness in Effervescent Sprays: a New Evaluation Method and the Influence of Operational Conditions

Anglický název

Unsteadiness in Effervescent Sprays: a New Evaluation Method and the Influence of Operational Conditions

Druh

Článek WoS

Originální abstrakt

A new evaluation method of unsteadiness of the spray generated by an effervescent atomizer is presented. The method is based on measurements of pressure fluctuations in the atomizer mixing chamber. Measurements, made under different atomizer operational conditions, show that the spray unsteadiness depends mainly on gas-to-liquid ratio (GLR). Decrease in GLR causes the spray to become more unsteady. The relation between atomizer internal two-phase flow pattern and the spray unsteadiness is elucidated by visualization of the internal two-phase flow using a digital camera and the use of published two-phase flow maps. Findings of the new method are complemented and confronted with the results obtained by the use of the spray unsteadiness evaluation method of Edwards and Marx.

Anglický abstrakt

A new evaluation method of unsteadiness of the spray generated by an effervescent atomizer is presented. The method is based on measurements of pressure fluctuations in the atomizer mixing chamber. Measurements, made under different atomizer operational conditions, show that the spray unsteadiness depends mainly on gas-to-liquid ratio (GLR). Decrease in GLR causes the spray to become more unsteady. The relation between atomizer internal two-phase flow pattern and the spray unsteadiness is elucidated by visualization of the internal two-phase flow using a digital camera and the use of published two-phase flow maps. Findings of the new method are complemented and confronted with the results obtained by the use of the spray unsteadiness evaluation method of Edwards and Marx.

Klíčová slova

Spray unsteadiness, effervescent atomizer, measurement method, two-phase flow

Klíčová slova v angličtině

Spray unsteadiness, effervescent atomizer, measurement method, two-phase flow

Autoři

JEDELSKÝ, J.; JÍCHA, M.

Rok RIV

2011

Vydáno

01.01.2008

Nakladatel

Begell House

Místo

Begell House Inc. 50 Cross Highway, Redding, CT 06896

ISSN

1044-5110

Periodikum

ATOMIZATION AND SPRAYS

Svazek

18

Číslo

1

Stát

Spojené státy americké

Strany od

49

Strany do

83

Strany počet

35

URL

http://www.dl.begellhouse.com/journals/6a7c7e10642258cc,7da5e43f06d335eb,4319cefd3bbc5dc2.html

Plný text v Digitální knihovně

http://hdl.handle.net/11012/138401

BibTex

@article{BUT44240,
  author="Jan {Jedelský} and Miroslav {Jícha}",
  title="Unsteadiness in Effervescent Sprays: a New Evaluation Method and the Influence of Operational Conditions",
  journal="ATOMIZATION AND SPRAYS",
  year="2008",
  volume="18",
  number="1",
  pages="49--83",
  doi="10.1615/AtomizSpr.v18.i1.20",
  issn="1044-5110",
  url="http://www.dl.begellhouse.com/journals/6a7c7e10642258cc,7da5e43f06d335eb,4319cefd3bbc5dc2.html"
}

Dokumenty

Jedelsky&Jicha-2008-accepted_manuscript
unsteadiness-in-effervescent-sprays_vut