Publication detail
Influence of two-phase flow pattern in mixing chamber of effervescent atomizer on spray quality
OTÁHAL, J. KOŠNER, J. FIŠER, J. JÍCHA, M.
Czech title
Vliv typu dvoufázového proudění ve směšovací komoře effervescent trysky na kvalitu atomizace
English title
Influence of two-phase flow pattern in mixing chamber of effervescent atomizer on spray quality
Type
conference paper
Language
en
Original abstract
The article deals with an experimental research of effervescent atomization. The resulting spray is affected by the type of the two-phase flow in the mixing chamber of the atomizer. The resulting type of the two-phase flow is influenced by media properties, geometrical parameters and arrangement of the chamber. The special transparent effervescent nozzle in configuration (inside-out gas injection) allowed the two-phase flow rising in the mixing chamber to be visualized. A high-speed camera was used for the visualization. The measurement of spray quality is represented by the values of the mean diameters of droplets, especially D32 (SMD-Sauter mean diameter). This characteristic parameter was obtained with the use of the laser diagnostics system PDA (Phase Doppler Analyzer). For complex overview of the spray, pictures of the spray were taken by means of a digital camera.
Czech abstract
Článek popisuje chování dvoufázového proudění ve směšovací komoře effervescent trysky a jeho vliv na kvalitu spreje.
English abstract
The article deals with an experimental research of effervescent atomization. The resulting spray is affected by the type of the two-phase flow in the mixing chamber of the atomizer. The resulting type of the two-phase flow is influenced by media properties, geometrical parameters and arrangement of the chamber. The special transparent effervescent nozzle in configuration (inside-out gas injection) allowed the two-phase flow rising in the mixing chamber to be visualized. A high-speed camera was used for the visualization. The measurement of spray quality is represented by the values of the mean diameters of droplets, especially D32 (SMD-Sauter mean diameter). This characteristic parameter was obtained with the use of the laser diagnostics system PDA (Phase Doppler Analyzer). For complex overview of the spray, pictures of the spray were taken by means of a digital camera.
Keywords in Czech
effervescent atomizace, kvalita atomizace, dvoufázové proudění, vizualizace
Keywords in English
Effervescent Atomization, Two-Phase Flow, Spray Quality, Visualization
RIV year
2007
Released
16.09.2007
Publisher
Florida state university
Location
Tallahassee
Book
Flucome 2007
Pages from–to
109–120
Pages count
400
BIBTEX
@inproceedings{BUT23841,
author="Jan {Otáhal} and Jan {Košner} and Jan {Fišer} and Miroslav {Jícha},
title="Influence of two-phase flow pattern in mixing chamber of effervescent atomizer on spray quality",
booktitle="Flucome 2007",
year="2007",
month="September",
pages="109--120",
publisher="Florida state university",
address="Tallahassee"
}