Dynamic characteristics of in-nozzle flash boiling bubbles and corresponding temporal responses of external spray
Sign Up to like & getrecommendations! Published in 2019 at "Experiments in Fluids"
DOI: 10.1007/s00348-019-2806-2
Abstract: Flash boiling spray is believed to have the potential in further improving the efficiency of practical liquid fuel combustors. However, the complex physics of this transient, multiphase process are not fully understood. Despite improved spray… read more here.
Keywords: boiling bubbles; external spray; spray; flash boiling ... See more keywords
Investigation on flash boiling spray fluctuations in the near-field and far-field under gasoline direct injection related conditions
Sign Up to like & getrecommendations! Published in 2020 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2020.115655
Abstract: Abstract Flash boiling spray has been considered as a promising atomization scheme in improving fuel-air mixture and reduce spray impingement in internal combustion engine applications. Because of its distinctive breakup mechanism, the thermal process of… read more here.
Keywords: boiling spray; far field; field; near field ... See more keywords
Modeling flash boiling breakup phenomena of fuel spray from multi-hole type direct-injection spark-ignition injector for various fuel components
Sign Up to like & getrecommendations! Published in 2018 at "Energy Conversion and Management"
DOI: 10.1016/j.enconman.2018.01.042
Abstract: Abstract A flash breakup model was developed in this study, based on bubble dynamics. The Rayleigh-Plesset equation was used to predict bubble growth inside of a droplet. A single bubble for each droplet was assumed.… read more here.
Keywords: spray; flash boiling; breakup; fuel ... See more keywords
Near-nozzle spray dynamics of 6-hole GDI injector under subcooled and superheated conditions
Sign Up to like & getrecommendations! Published in 2018 at "Fuel"
DOI: 10.1016/j.fuel.2018.05.147
Abstract: Abstract The flash boiling of fuel sprays can occur in engines when the fuel is injected into the ambient gas which pressure is lower than the saturation vapor pressure of the fuel. Recently, the flash… read more here.
Keywords: spray; flash boiling; near nozzle; boiling sprays ... See more keywords
Visualization of spatial distribution of the droplet size and velocity in flash boiling spray with extended glare-point imaging technique
Sign Up to like & getrecommendations! Published in 2019 at "Fuel"
DOI: 10.1016/j.fuel.2019.01.033
Abstract: Abstract Flash boiling is an effective way to improve the atomization quality. Droplet diameter and velocity distribution of the flash boiling spray extremely impact the mixture formation of direct injection engines. We visualize and measure… read more here.
Keywords: droplet; size velocity; boiling spray; flash boiling ... See more keywords
Characteristics of flash boiling spray of aviation kerosene in the twin-orifice nozzle
Sign Up to like & getrecommendations! Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2021.120771
Abstract: Abstract To investigate the flash boiling fuel spray characteristics of the twin-orifice nozzle with aviation kerosene, a two-dimensional transparent slit nozzle is designed and studied under a wide range of superheated conditions. Both internal bubble… read more here.
Keywords: flash boiling; fuel; jet; twin orifice ... See more keywords
Effects of component proportions on multi-jet instant expansion of binary solutions under flash boiling conditions
Sign Up to like & getrecommendations! Published in 2022 at "Fuel"
DOI: 10.1016/j.fuel.2021.122018
Abstract: Abstract Flash boiling injection can significantly promote spray atomization owing to rapid bubble growth and explosion. Nevertheless, the effects of component proportions on spray expansion of multi-component fuels still need more quantitative studies. In this… read more here.
Keywords: expansion; component proportions; flash boiling; effects component ... See more keywords
Nozzle Tip Wetting in GDI Injector at Flash-boiling Conditions
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2021.120935
Abstract: Abstract The flash-boiling spray has become a timely topic of seeking the high mixture quality and clean combustion of the gasoline-direction-injection (GDI) engines. The flash-boiling spray, which has the enlarged individual spray cone angles and… read more here.
Keywords: flash boiling; boiling conditions; nozzle tip; tip wetting ... See more keywords
Single vapour bubble growth under flash boiling conditions using a modified HLLC Riemann solver
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Multiphase Flow"
DOI: 10.1016/j.ijmultiphaseflow.2019.04.010
Abstract: Abstract Common fuel-oxidizer combinations in orbital manoeuvring systems consist of toxic substances but will be replaced in the future. Liquid oxygen (LOX) is one potential oxidizer but it rapidly superheats under the initial low-pressure conditions… read more here.
Keywords: flash boiling; growth; riemann solver; solver ... See more keywords
Experimental observations of the transition between heterogeneous to homogeneous nucleation regimes in flash-boiling atomization
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Multiphase Flow"
DOI: 10.1016/j.ijmultiphaseflow.2020.103476
Abstract: Abstract Here we present an experimental study of the transition from heterogeneous to homogeneous-nucleation in flash-boiling atomization. The study is based on a wide set of experimental results obtained with a high-pressure fluid flowing through… read more here.
Keywords: flash boiling; nucleation; homogeneous nucleation; transition heterogeneous ... See more keywords
ECN Spray G injector: Numerical modelling of flash-boiling breakup and spray collapse
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Multiphase Flow"
DOI: 10.1016/j.ijmultiphaseflow.2021.103817
Abstract: Abstract Flash boiling is the sudden change from liquid to vapour phase and in IC engines it typically occurs during the injection process with a gasoline direct injection (GDI) setup and when high fuel temperatures… read more here.
Keywords: ecn spray; spray; flash boiling; boiling breakup ... See more keywords