Detail publikace

Nestability sprejů generovaných tryskami typu effervescent

JEDELSKÝ, J. JÍCHA, M.

Originální název

Unsteadiness of Effervescent Atomizer generated sprays

Český název

Nestability sprejů generovaných tryskami typu effervescent

Anglický název

Unsteadiness of Effervescent Atomizer generated sprays

Typ

článek ve sborníku

Jazyk

en

Originální abstrakt

A novel method is presented to quantify the unsteadiness of effervescent atomizer generated spray in relation to operational conditions and two-phase flow pattern inside the atomizer mixing chamber. The method, derived and applied here, is based on the measurement of pressure fluctuations in the atomizer mixing chamber. The results show steady spray behaviour at higher GLRs, where the atomizer is operated in dispersed or annular regimes of the internal two-phase flow. Decrease of GLR to below 6%, where non-uniform internal two phase flow appears, leads to unsteady spray.

Český abstrakt

Nová metoda pro kvantifikaci nestabilit effervescent trysek je prezentována. Ukazuje vliv provozních podmínek a režimu dvoufázového toku ve směšovací komoře trysky na nestability spreje. Tato metoda je založena na měření tlakových pulzací uvnitř směšovací komory trysky. Výsledky ukazují stabilní sprej v případě vysokých hodnot GLR, kde je tryska v režimu anulárního nebo disperzního toku. Pokles GLR pod cca 6%, spojený s nehomogenním dvoufázovým tokem uvnitř trysky vede k nestabilnímu spreji.

Anglický abstrakt

A novel method is presented to quantify the unsteadiness of effervescent atomizer generated spray in relation to operational conditions and two-phase flow pattern inside the atomizer mixing chamber. The method, derived and applied here, is based on the measurement of pressure fluctuations in the atomizer mixing chamber. The results show steady spray behaviour at higher GLRs, where the atomizer is operated in dispersed or annular regimes of the internal two-phase flow. Decrease of GLR to below 6%, where non-uniform internal two phase flow appears, leads to unsteady spray.

Rok RIV

2005

Vydáno

01.01.2005

Nakladatel

Laboratoire de Combustion et Systemes Reactifs, CNRS Orleans

Místo

Orleans, France

Strany od

253

Strany do

258

Strany počet

6

BibTex


@inproceedings{BUT15524,
  author="Jan {Jedelský} and Miroslav {Jícha}",
  title="Unsteadiness of Effervescent Atomizer generated sprays",
  annote="A novel method is presented to quantify the unsteadiness of effervescent atomizer generated spray in relation to operational conditions and two-phase flow pattern inside the atomizer mixing chamber. The method, derived and applied here, is based on the measurement of pressure fluctuations in the atomizer mixing chamber. The results show steady spray behaviour at higher GLRs, where the atomizer is operated in dispersed or annular regimes of the internal two-phase flow. Decrease of GLR to below 6%, where non-uniform internal two phase flow appears, leads to unsteady spray.",
  address="Laboratoire de Combustion et Systemes Reactifs, CNRS Orleans",
  booktitle="Proceedings 20th Annual Conference on Liquid Atomization and Spray Systems",
  chapter="15524",
  institution="Laboratoire de Combustion et Systemes Reactifs, CNRS Orleans",
  year="2005",
  month="january",
  pages="253",
  publisher="Laboratoire de Combustion et Systemes Reactifs, CNRS Orleans",
  type="conference paper"
}