Unsteadiness in Effervescent Sprays: a New Evaluation Method and the Influence of Operational Conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F08%3APU68944" target="_blank" >RIV/00216305:26210/08:PU68944 - 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
Unsteadiness in Effervescent Sprays: a New Evaluation Method and the Influence of Operational Conditions
Original language description
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 operationalconditions, 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 byvisualization 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 methodof Edwards and Marx.
Czech name
Nestability v effervescent sprejích: Nová metoda měření, vliv provozních podmínek
Czech description
V příspěvku je odvozena nová metoda měření nestabilit spreje u trysky typu effervescent. Metoda je založena na měření tlakových pulzací ve směšovací komoře trysky. Měření na modelové trysce ukazují vliv provozních podmínek: tlaku a směšovacího poměru plynu a kapaliny. K osvětlení příčin nestabilit je využita vizualizace vnitřního dvoufázového toku pomocí vysokorychlostní kamery. Výsledky měření nestabilit pomocí uvedené metody jsou porovnány s metodou odvozenou Edwardsem and Marxem.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Atomization and sprays
ISSN
1044-5110
e-ISSN
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Volume of the periodical
2008 (18)
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
35
Pages from-to
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UT code for WoS article
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EID of the result in the Scopus database
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