Pressure Swirl Spray Characteristics Under Cross-flow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU146462" target="_blank" >RIV/00216305:26210/22:PU146462 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Pressure Swirl Spray Characteristics Under Cross-flow

Popis výsledku v původním jazyce

The pressure swirl atomizers (PSAs) are used in a wide range of agriculture and combustion applications where ambient flow applies. The PSAs form a hollow cone-type spray, with high concentration of droplets at spray periphery, where droplets appear in a wide size range (1 – 100 µm). The spray quality (e.g. droplet size) is governed by the liquid sheet thickness at its breakup position. The sheet thickness reduces with the breakup length increase and thus the spray quality is expected to improve. A smooth and undistorted liquid sheet breaks up at a large distance from the nozzle under still ambient air conditions. The liquid sheet formation under the cross-flow condition differs from that in still conditions. The flowing air increases the relative sheet-air velocity with two consequences: 1) it reduces the primary breakup length as the disrupting forces on the sheet increase, and 2) it promotes the secondary liquid breakup and intensifies the spray mixing so the droplet size reduces. The present study

Název v anglickém jazyce

Pressure Swirl Spray Characteristics Under Cross-flow

Popis výsledku anglicky

The pressure swirl atomizers (PSAs) are used in a wide range of agriculture and combustion applications where ambient flow applies. The PSAs form a hollow cone-type spray, with high concentration of droplets at spray periphery, where droplets appear in a wide size range (1 – 100 µm). The spray quality (e.g. droplet size) is governed by the liquid sheet thickness at its breakup position. The sheet thickness reduces with the breakup length increase and thus the spray quality is expected to improve. A smooth and undistorted liquid sheet breaks up at a large distance from the nozzle under still ambient air conditions. The liquid sheet formation under the cross-flow condition differs from that in still conditions. The flowing air increases the relative sheet-air velocity with two consequences: 1) it reduces the primary breakup length as the disrupting forces on the sheet increase, and 2) it promotes the secondary liquid breakup and intensifies the spray mixing so the droplet size reduces. The present study

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů