INTERACTION OF THE AIR WITH LIQUID IN PRESSURE-SWIRL SPRAYS

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
INTERACTION OF THE AIR WITH LIQUID IN PRESSURE-SWIRL SPRAYS
Original language description
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.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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