Numerical simulation of liquid jet atomization in subsonic crossflow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU145541" target="_blank" >RIV/00216305:26210/22:PU145541 - isvavai.cz</a>

Výsledek na webu

<a href="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0360544222015791" target="_blank" >https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0360544222015791</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.energy.2022.124676" target="_blank" >10.1016/j.energy.2022.124676</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical simulation of liquid jet atomization in subsonic crossflow

Popis výsledku v původním jazyce

To explore the influence of different factors on the atomization pattern and characteristics of the crossflow, the influence of three dimensionless parameters is investigated in this paper, namely Weber number, Oh, and the momentum flux ratio q, on the atomization in subsonic crossflow. The investigations are based on the CLSVOF method and Large Eddy Simulation and developed in conjunction with adaptive mesh refinement techniques. In terms of atomization morphology, three-view drawing of the jet fragmentation morphology and cross-sectional deformation processes under different operating conditions are compared and investigated. In terms of atomization characteristics, the jet penetration depth and spraying distribution curves, as well as the fragmentation position and droplet velocity distribution are analyzed in detail. The results show that there is a pronounced effect for Weber number on the fragmentation pattern and atomization characteristics of liquid jet into a crossflow. As the Weber number increases, the column fragmentation dominated by RT instability gradually changes to surface fragmentation dominated by KH instability. The research also concluded that the momentum flux ratio q is a key element in the penetration depth, which is reflected in the fact that when q is larger, the jet bends less with a stronger penetration ability.

Název v anglickém jazyce

Numerical simulation of liquid jet atomization in subsonic crossflow

Popis výsledku anglicky

To explore the influence of different factors on the atomization pattern and characteristics of the crossflow, the influence of three dimensionless parameters is investigated in this paper, namely Weber number, Oh, and the momentum flux ratio q, on the atomization in subsonic crossflow. The investigations are based on the CLSVOF method and Large Eddy Simulation and developed in conjunction with adaptive mesh refinement techniques. In terms of atomization morphology, three-view drawing of the jet fragmentation morphology and cross-sectional deformation processes under different operating conditions are compared and investigated. In terms of atomization characteristics, the jet penetration depth and spraying distribution curves, as well as the fragmentation position and droplet velocity distribution are analyzed in detail. The results show that there is a pronounced effect for Weber number on the fragmentation pattern and atomization characteristics of liquid jet into a crossflow. As the Weber number increases, the column fragmentation dominated by RT instability gradually changes to surface fragmentation dominated by KH instability. The research also concluded that the momentum flux ratio q is a key element in the penetration depth, which is reflected in the fact that when q is larger, the jet bends less with a stronger penetration ability.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/EF15_003%2F0000456" target="_blank" >EF15_003/0000456: Laboratoř integrace procesů pro trvalou udržitelnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Energy

ISSN

0360-5442

e-ISSN

1873-6785

Svazek periodika

neuveden

Číslo periodika v rámci svazku

257

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

19

Strana od-do

124676-124676

Kód UT WoS článku

000853698300003

EID výsledku v databázi Scopus

2-s2.0-85134269806