INTERACTION OF THE AIR WITH LIQUID IN PRESSURE-SWIRL SPRAYS
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU115591" target="_blank" >RIV/00216305:26210/15:PU115591 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
INTERACTION OF THE AIR WITH LIQUID IN PRESSURE-SWIRL SPRAYS
Popis výsledku v původním jazyce
The flow field in a spray produced by a pressure-swirl (PS) atomizer was studied using Phase-Doppler Anemometry (PDA). A Stokes number (Stk) analysis of the sprayed droplets showed that droplets < 5 ?m followed the airflow so were used to provide estimates of the local air velocity. The Stk increases with drop size; even 20?40 ?m sized droplets (Stk ~ 1) are partially affected by the air flow while the largest ones (80?160 ?m, Stk > 10) move ballistically. The liquid and gas flow fields were compared interms of the mean and rms velocities. The airflow, inside the hollow-cone spray, was found to be highly anisotropic and spatially varying within three distinct regions. Spatially resolved TKE and MKE of the air and spectra of the droplet velocity fluctuations are detailed in the paper.
Název v anglickém jazyce
INTERACTION OF THE AIR WITH LIQUID IN PRESSURE-SWIRL SPRAYS
Popis výsledku anglicky
The flow field in a spray produced by a pressure-swirl (PS) atomizer was studied using Phase-Doppler Anemometry (PDA). A Stokes number (Stk) analysis of the sprayed droplets showed that droplets < 5 ?m followed the airflow so were used to provide estimates of the local air velocity. The Stk increases with drop size; even 20?40 ?m sized droplets (Stk ~ 1) are partially affected by the air flow while the largest ones (80?160 ?m, Stk > 10) move ballistically. The liquid and gas flow fields were compared interms of the mean and rms velocities. The airflow, inside the hollow-cone spray, was found to be highly anisotropic and spatially varying within three distinct regions. Spatially resolved TKE and MKE of the air and spectra of the droplet velocity fluctuations are detailed in the paper.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
BK - Mechanika tekutin
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů