IMPINGING EFFERVESCENT ATOMIZERS: DESIGN INSIGHTS
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0200825" target="_blank" >RIV/00216305:26210/26:0200825 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.14311/TPFM.2025.006" target="_blank" >http://dx.doi.org/10.14311/TPFM.2025.006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/TPFM.2025.006" target="_blank" >10.14311/TPFM.2025.006</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
IMPINGING EFFERVESCENT ATOMIZERS: DESIGN INSIGHTS
Popis výsledku v původním jazyce
Design and performance of an impinging effervescent atomizer are investigated in this study. Effervescent atomizers were adapted to a multi-orifice design to address limitations in single orifice setups as small spray cone angle (SCA) and small area coverage. High-speed imaging and Phase Doppler anemometry were used to assess liquid discharge behaviour, droplet size, and spray stability. The experiments analysed various design parameters, including the diameter of the mixing chamber, the diameter of the exit orifice, and pitch circle diameter, under different gas-to-liquid ratios (GLR) and inlet fluid configurations (central air vs. central liquid). Results indicate that the inlet fluid configuration significantly affects discharge stability, with the central liquid configuration showing low-frequency oscillation, which lowers spray quality. Although the discharge coefficient was unaffected by design variations, the droplet size was influenced by the pitch circle diameter and the GLR, with the latter being the dominant factor. The findings provide insight into optimizing the design for stable and efficient operation of the impinging effervescent atomizer.
Název v anglickém jazyce
IMPINGING EFFERVESCENT ATOMIZERS: DESIGN INSIGHTS
Popis výsledku anglicky
Design and performance of an impinging effervescent atomizer are investigated in this study. Effervescent atomizers were adapted to a multi-orifice design to address limitations in single orifice setups as small spray cone angle (SCA) and small area coverage. High-speed imaging and Phase Doppler anemometry were used to assess liquid discharge behaviour, droplet size, and spray stability. The experiments analysed various design parameters, including the diameter of the mixing chamber, the diameter of the exit orifice, and pitch circle diameter, under different gas-to-liquid ratios (GLR) and inlet fluid configurations (central air vs. central liquid). Results indicate that the inlet fluid configuration significantly affects discharge stability, with the central liquid configuration showing low-frequency oscillation, which lowers spray quality. Although the discharge coefficient was unaffected by design variations, the droplet size was influenced by the pitch circle diameter and the GLR, with the latter being the dominant factor. The findings provide insight into optimizing the design for stable and efficient operation of the impinging effervescent atomizer.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20301 - Mechanical engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GA23-07722S" target="_blank" >GA23-07722S: Pokročilé energeticky účinné modifikace dvoumédiových trysek</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Topical Problems of Fluid Mechanics
ISBN
—
ISSN
2336-5781
e-ISSN
—
Počet stran výsledku
6
Strana od-do
39-44
Název nakladatele
Acad Sci Czech Republic, Inst Thermomechanics
Místo vydání
PRAGUE 8
Místo konání akce
Praha
Datum konání akce
12. 2. 2025
Typ akce podle státní příslušnosti
EUR - Evropská akce
Kód UT WoS článku
001597458700006