Influence of the PDA setup on a quality of velocity distributions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F07%3APU68255" target="_blank" >RIV/00216305:26210/07:PU68255 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Influence of the PDA setup on a quality of velocity distributions
Original language description
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.
Czech name
Vliv nastavení systému PDA na kvalitu získaných rychlostí
Czech description
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.
Classification
Type
D - Article in proceedings
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA101%2F06%2F0750" target="_blank" >GA101/06/0750: Effervescent (Twin-Fluid Internally Mixed) Atomizers</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
21st Sympozium on Anemometry, Proceedings
ISBN
978-80-87117-01-9
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
127-130
Publisher name
Ústav pro hydrodynamiku AV ČR, v. v. i.
Place of publication
Praha
Event location
Holany-Litice
Event date
May 29, 2007
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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