Effects of ambient pressures on cool flames in n-dodecane spray studied with laser diagnostics and large-eddy simulations

Y Wei, Z Zhang, M Zhou, W Yu, X Zhang, J Hu, X Mi… - Energy, 2024 - Elsevier
Cool flames, as a typical phenomenon in low-temperature combustion, have garnered wide
interests owing to their crucial role in engine performance and emissions. In the present …

Experimental and numerical analysis of unburned ammonia and nitrous oxide emission characteristics in ammonia/diesel dual-fuel engine

Y Niki - International Journal of Engine Research, 2023 - journals.sagepub.com
Ammonia (NH3) combustion has been investigated as a carbon-free fuel for internal
combustion engines. The marine sector attempts to use NH3 as fuel for diesel engines …

[HTML][HTML] Effects of pre-injection on ignition, combustion and emissions of spray under engine-like conditions

A Hadadpour, S Xu, KM Pang, XS Bai, M Jangi - Combustion and Flame, 2022 - Elsevier
Large-eddy simulation (LES) of multiple-injection spray combustion under engine-like
conditions is performed using a coupled model of an Eulerian stochastic field transported …

A new skeletal kinetic model for methanol/n-heptane dual fuels under engine-like conditions

S Liu, T Sun, L Zhou, M Jia, W Zhao, H Wei - Energy, 2023 - Elsevier
In dual-fuel engines, diesel is typically used to initiate the ignition of methanol, resulting in a
turbulent spray flame. However, the lack of skeletal or reduced mechanisms for methanol/n …

[HTML][HTML] Effects of hydrogen enrichment and turbulence intensity on the combustion mode in locally stratified dual-fuel mixtures of n-dodecane/methane

S Karimkashi, O Kaario, V Vuorinen - Applications in Energy and …, 2022 - Elsevier
In dual-fuel (DF) engines, a high-reactivity fuel (HRF) ignites a low-reactivity fuel (LRF)
premixed with air. Identification of the combustion mode after autoignition in DF engines with …

Effects of ambient oxygen concentrations on pollutants formation in premixed natural gas ignited by pilot diesel spray: Large-eddy simulations

Y Wei, Z Zhang, M Zhou, D Dong, W Yu, X Mi, G Li - Fuel, 2024 - Elsevier
In the present study, the auto-ignition of a diesel surrogate (n-dodecane) spray in a lean
methane-air mixture is numerically investigated via large-eddy simulations (LES). The main …

Characteristics of NO/NO2/N2O Formation and Distribution in Ammonia/n-Heptane Dual-Fuel Spray Combustion under Different Ammonia Concentrations

W Yu, Y Wei, D Dong, M Zhou, X Mi, Z Zhang… - Energy & …, 2024 - ACS Publications
Ammonia, a zero-carbon fuel, shows promise for replacing fossil fuels in internal combustion
engines to reduce the level of CO2 emissions. Using a dual-fuel model with a pilot diesel …

[HTML][HTML] Numerical evidence on deflagration fronts in a methane/n-dodecane dual-fuel shear layer under engine relevant conditions

J Kannan, S Karimkashi, M Gadalla, O Kaario… - Fuel, 2023 - Elsevier
To date, high resolution spray-assisted dual-fuel (DF) studies have focused on capturing the
ignition process while the subsequent post-ignition events have been largely neglected due …

Multiscale modeling of liquid jet breakup in crossflow using an Eulerian/Lagrangian approach

P Zhang, W Li, T Zhang, Y Yan, J Li, H Tang - Physics of Fluids, 2023 - pubs.aip.org
Liquid atomization is a very complex issue, involving multiple length and time scales over
several orders of magnitude. To better understand the atomization characteristics of the …

Effect of Methane on the Ignition Process of Spray Flame Using Large Eddy Simulation

W Zhao, T Sun, L Zhou, H Wei - … of Engineering for …, 2022 - asmedigitalcollection.asme.org
The ignition process of spray flame in a methane environment was studied using large eddy
simulation. By comparing the combustion process of n-dodecane spray (single fuel, SF) and …