Detail publikace
Vliv nastavení systému PDA na kvalitu získaných rychlostí
OTÁHAL, J. FIŠER, J. KOŠNER, J. JÍCHA, M.
Český název
Vliv nastavení systému PDA na kvalitu získaných rychlostí
Anglický název
Influence of the PDA setup on a quality of velocity distributions
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
The PDA (Phase Doppler Anemometer) is well known as one of the most useful techniques to study particle velocity and particle size distributions in two-phase flows. There are many variations to the setup of this diagnostic system, especially its geometrical parameters. Research of effervescent atomization, on a dense spray of the near-nozzle region in particular, shows that it is necessary to carry out a functionality analysis of the PDA system for such applications. The off-axis angle (scattering angle) has the essential influence on signal quality. Thus, a set of experiments has been carried out with one pressure nozzle under the same operation conditions for values of off-axis angle in the range of 30 -80 . The PDA user guide recommends a value of 73.7 as the optimum angle. Theoretically, there is no influence on acquired values of particular velocity, but this idea may be affected if the carrier of the velocity is not detected.
Český abstrakt
Článek popisuje vliv nastavení PDA systému na získané rychlostní pole ve spreji. Chování systému bylo zkoumáno v oblasti lomového signálu, tzn. pro nastavení prijimaci optiky v rozsahu 30-80 stupnu.
Anglický abstrakt
The PDA (Phase Doppler Anemometer) is well known as one of the most useful techniques to study particle velocity and particle size distributions in two-phase flows. There are many variations to the setup of this diagnostic system, especially its geometrical parameters. Research of effervescent atomization, on a dense spray of the near-nozzle region in particular, shows that it is necessary to carry out a functionality analysis of the PDA system for such applications. The off-axis angle (scattering angle) has the essential influence on signal quality. Thus, a set of experiments has been carried out with one pressure nozzle under the same operation conditions for values of off-axis angle in the range of 30 -80 . The PDA user guide recommends a value of 73.7 as the optimum angle. Theoretically, there is no influence on acquired values of particular velocity, but this idea may be affected if the carrier of the velocity is not detected.
Klíčová slova česky
PDA systém, sprej, dvoufázové proudění, effervescent tryska
Klíčová slova anglicky
Phase Doppler Anemometer, spray, two-phase flow, effervescent nozzle
Rok RIV
2007
Vydáno
29.05.2007
Nakladatel
Ústav pro hydrodynamiku AV ČR, v. v. i.
Místo
Praha
ISBN
978-80-87117-01-9
Kniha
21st Sympozium on Anemometry, Proceedings
Strany od–do
127–130
Počet stran
150
BIBTEX
@inproceedings{BUT24006,
author="Jan {Otáhal} and Jan {Fišer} and Jan {Košner} and Miroslav {Jícha},
title="Influence of the PDA setup on a quality of velocity distributions",
booktitle="21st Sympozium on Anemometry, Proceedings",
year="2007",
month="May",
pages="127--130",
publisher="Ústav pro hydrodynamiku AV ČR, v. v. i.",
address="Praha",
isbn="978-80-87117-01-9"
}